JPH091684A - Light-shielding polyester sheet - Google Patents
Light-shielding polyester sheetInfo
- Publication number
- JPH091684A JPH091684A JP7154940A JP15494095A JPH091684A JP H091684 A JPH091684 A JP H091684A JP 7154940 A JP7154940 A JP 7154940A JP 15494095 A JP15494095 A JP 15494095A JP H091684 A JPH091684 A JP H091684A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- sheet
- polyester sheet
- light
- sheet according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920000728 polyester Polymers 0.000 title claims abstract description 98
- 239000002245 particle Substances 0.000 claims abstract description 38
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 14
- 238000002834 transmittance Methods 0.000 claims description 14
- 239000002904 solvent Substances 0.000 abstract description 21
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 3
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 37
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 25
- 230000000704 physical effect Effects 0.000 description 19
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 16
- 239000002994 raw material Substances 0.000 description 12
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 235000013305 food Nutrition 0.000 description 9
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 8
- 238000004040 coloring Methods 0.000 description 8
- 238000005886 esterification reaction Methods 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002985 plastic film Substances 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000004925 Acrylic resin Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 5
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 238000004898 kneading Methods 0.000 description 5
- 238000007666 vacuum forming Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 230000032050 esterification Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 235000011007 phosphoric acid Nutrition 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013638 trimer Substances 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 235000008429 bread Nutrition 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BYEAHWXPCBROCE-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-ol Chemical compound FC(F)(F)C(O)C(F)(F)F BYEAHWXPCBROCE-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920006353 Acrylite® Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- BELBBZDIHDAJOR-UHFFFAOYSA-N Phenolsulfonephthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2S(=O)(=O)O1 BELBBZDIHDAJOR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- LUSFFPXRDZKBMF-UHFFFAOYSA-N [3-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCCC(CO)C1 LUSFFPXRDZKBMF-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 235000021186 dishes Nutrition 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229940119177 germanium dioxide Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 229960003531 phenolsulfonphthalein Drugs 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Bathtubs, Showers, And Their Attachments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐衝撃性に優れ、美麗
な外観を有する遮光性ポリエステルシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding polyester sheet having excellent impact resistance and a beautiful appearance.
【０００２】[0002]
【従来の技術】近年、プラスチック製シートが、ガラス
板や木材の板の代替品として、板状または曲面に成形し
た形で使用されるようになってきている。その理由とし
て、プラスチック製シートの軽量性及び優れた加工性や
透明性を挙げることができ、該プラスチック製シートと
しては主にアクリル樹脂シートが使用されている。2. Description of the Related Art In recent years, plastic sheets have come to be used in the form of plates or curved surfaces as a substitute for glass plates and wood plates. The reason is that the plastic sheet is lightweight and has excellent processability and transparency, and an acrylic resin sheet is mainly used as the plastic sheet.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、かかる
アクリル樹脂シートは、その材質に起因する問題点を内
在している。すなわち、アクリル樹脂シートは一般に耐
衝撃性が劣るために、使用時だけでなく、製品輸送や保
管等の際に破損してしまう場合がある。また、低温特
性、耐薬品性、難燃性などの諸物性において十分でない
という問題がある。このようなアクリル樹脂製のプラス
チックシートの欠点である耐衝撃性の不足を解決するこ
とができるような優れたプラスチックシートが強く望ま
れている。However, such an acrylic resin sheet has a problem inherent in its material. That is, since the acrylic resin sheet generally has poor impact resistance, it may be damaged not only when it is used but also when it is transported or stored. Further, there is a problem that physical properties such as low temperature characteristics, chemical resistance and flame retardancy are not sufficient. There is a strong demand for an excellent plastic sheet that can solve the shortcoming of impact resistance, which is a drawback of such plastic sheet made of acrylic resin.
【０００４】プラスチックシートとしては透明性を要求
されるものがある一方で、遮光性が要求されるものがあ
る。この遮光性をプラスチックシートに付与する方法に
ついては、シートの物性を損なわず、かつコストパフォ
ーマンスに優れた方法であることが好ましい。Some plastic sheets are required to be transparent, while others are required to be light-shielding. The method for imparting this light-shielding property to the plastic sheet is preferably a method which does not impair the physical properties of the sheet and is excellent in cost performance.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記課題
に鑑み鋭意検討を行った結果、不活性粒子を配合して遮
光性を付与した、特定のポリエステルシートによれば、
上記の課題が解決できることを見いだし本発明を解決す
るに至った。すなわち、本発明の要旨は、厚み（ｔ）が
０．５〜３０ｍｍ、高速衝撃強度（ＦI ）が１０００Ｎ
以上、高速衝撃強度の厚み依存性値（ＦI ／ｔ）が５０
０Ｎ／ｍｍ以上、光線透過率が１０％以下、かつ、不活
性粒子が０．１〜２０重量％配合されていることを特徴
とする遮光性ポリエステルシートに存する。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in view of the above problems, and as a result, according to a specific polyester sheet which is blended with inert particles to impart a light-shielding property,
The inventors have found that the above problems can be solved and have solved the present invention. That is, the gist of the present invention is that the thickness (t) is 0.5 to 30 mm and the high-speed impact strength (FI) is 1000 N.
As described above, the thickness dependence value (FI / t) of high-speed impact strength is 50
The light-shielding polyester sheet is characterized by having a light transmittance of 0 N / mm or more, a light transmittance of 10% or less, and 0.1 to 20% by weight of inert particles.
【０００６】以下、本発明を詳細に説明する。本発明で
いうポリエステルとは、芳香族ジカルボン酸成分とグリ
コール成分とからなるものである。芳香族ジカルボン酸
成分としては、テレフタル酸がその代表例として挙げら
れ、その他にイソフタル酸、２，６ーナフタレンジカル
ボン酸、アジピン酸、セバシン酸、ｐーオキシエトキシ
安息香酸等がある。グリコール成分としては、エチレン
グリコールがその代表例として挙げられ、その他にジエ
チレングリコール、１，４ー及び１，３ーシクロヘキサ
ンジメタノール、プロピレングリコール、１，４ーブタ
ンジオール、１，２ーネオペンチルグリコール、ビスフ
ェノールＡ等がある。Hereinafter, the present invention will be described in detail. The polyester referred to in the present invention is composed of an aromatic dicarboxylic acid component and a glycol component. As the aromatic dicarboxylic acid component, terephthalic acid is mentioned as a typical example, and in addition, isophthalic acid, 2,6-naphthalenedicarboxylic acid, adipic acid, sebacic acid, p-oxyethoxybenzoic acid and the like are included. As the glycol component, ethylene glycol is mentioned as a typical example, and in addition, diethylene glycol, 1,4- and 1,3-cyclohexanedimethanol, propylene glycol, 1,4-butanediol, 1,2-neopentyl glycol, bisphenol A. Etc.
【０００７】ポリエステルとしては、原料が安価である
点、成形が容易である点、及び最終的に得られるシート
の物性が優れている点などにより、繰り返し構造単位と
してエチレンテレフタレート単位を通常８０％以上、好
ましくは９０％以上のものが用いられる。該エチレンテ
レフタレート単位が８０％未満では、シート化加工時に
おける乾燥の際に融着が生じ取扱い性が悪化したり、得
られるシートの曲げ強度、耐薬品性、耐候性等の性質が
劣るようになり好ましくない。As a polyester, an ethylene terephthalate unit is usually used as a repeating structural unit in an amount of 80% or more because of its cheap raw material, easy molding, and excellent physical properties of the finally obtained sheet. , Preferably 90% or more is used. When the content of the ethylene terephthalate unit is less than 80%, fusion may occur during drying during the sheeting process to deteriorate the handleability, and the obtained sheet may have inferior properties such as bending strength, chemical resistance and weather resistance. It is not preferable.
【０００８】また、本発明で用いられる好ましいポリエ
ステルの一例としては、グリコール主成分をエチレング
リコールとし、他にジエチレングリコールあるいはシク
ロヘキサンジメタノールを含有したものが挙げられる。
シクロヘキサンジメタノールの含有量としては、全グリ
コール成分に対して、通常０．５〜１０モル％、好まし
くは１．０〜５．０モル％の範囲であり、シクロヘキサ
ンジメタノールとしては、特にシス／トランス比が（２
０〜８０）／（８０〜２０）の割合の１，４ーシクロヘ
キサンジメタノールが好ましく使用される。また、ジエ
チレングリコールの含有量としては、全グリコール成分
に対して、好ましくは０．５〜５．０モル％、更に好ま
しくは１．０〜４．０モル％の範囲である。本発明のポ
リエステルシートに、かかるシクロヘキサンジメタノー
ル及びジエチレングリコールの構造単位を含むことによ
り、優れた耐衝撃性や透明性等の物性が発現しやすく、
また、加工特性が向上するので望ましい。Further, as an example of the preferred polyester used in the present invention, a polyester containing ethylene glycol as a main component of glycol and further containing diethylene glycol or cyclohexanedimethanol can be mentioned.
The content of cyclohexanedimethanol is usually in the range of 0.5 to 10 mol%, preferably 1.0 to 5.0 mol% with respect to the total glycol component, and as cyclohexanedimethanol, cis / Transformer ratio is (2
A ratio of 0 to 80) / (80 to 20) 1,4-cyclohexanedimethanol is preferably used. The content of diethylene glycol is preferably 0.5 to 5.0 mol%, more preferably 1.0 to 4.0 mol% with respect to the total glycol component. In the polyester sheet of the present invention, by containing such a structural unit of cyclohexanedimethanol and diethylene glycol, physical properties such as excellent impact resistance and transparency are easily expressed,
It is also desirable because it improves the processing characteristics.
【０００９】以上の本発明のシートの原料となるポリエ
ステルは、公知のポリエステル、特にポリエチレンテレ
フタレートの重合方法に準じて、溶融重合及び、必要に
応じて固相重合を行うことにより、所望の物性を有する
ポリエステルが製造される。ポリエステルの極限粘度
は、通常０．５〜１．３ｄｌ／ｇ、好ましくは０．６〜
１．１ｄｌ／ｇの範囲である。極限粘度が０．５ｄｌ／
ｇ未満では、シートの機械的性質、特に耐衝撃性等が劣
るだけでなく、シート外観が劣るため不適である。一
方、極限粘度が１．３ｄｌ／ｇを越える場合において
は、溶融流動性が劣るためにシートの加工が困難となっ
たりするような弊害が生じるために不適である。The above-mentioned polyester as a raw material of the sheet of the present invention has desired physical properties by melt-polymerization and, if necessary, solid-phase polymerization according to a known polyester, particularly polyethylene terephthalate polymerization method. A polyester having is produced. The intrinsic viscosity of polyester is usually 0.5 to 1.3 dl / g, preferably 0.6 to
It is in the range of 1.1 dl / g. Intrinsic viscosity is 0.5 dl /
If it is less than g, not only the mechanical properties of the sheet, particularly impact resistance, but also the appearance of the sheet are inferior, which is unsuitable. On the other hand, when the intrinsic viscosity is more than 1.3 dl / g, the melt fluidity is inferior and the sheet becomes difficult to process, which is not suitable.
【００１０】また、ポリエステルのオリゴマー含有量
は、その主成分である環状三量体の含有量として、通常
２．０重量％以下、好ましくは１．０重量％以下、更に
好ましくは０．５重量％である。環状三量体の含有量が
２．０重量％を越える場合、例えばシート化加工時にダ
イスやロール等に付着し、汚染し、得られるシートの表
面性が損なわれたり、外観が不良となり、実用に耐えな
いものとなり好ましくない。The oligomer content of the polyester is usually 2.0% by weight or less, preferably 1.0% by weight or less, and more preferably 0.5% by weight, as the content of the cyclic trimer which is the main component. %. When the content of the cyclic trimer exceeds 2.0% by weight, for example, it adheres to dies or rolls during sheeting and contaminates, impairing the surface property of the obtained sheet, and causing poor appearance, resulting in practical use. It is not preferable because it cannot withstand.
【００１１】更に、ポリエステルの末端カルボキシル基
の濃度は、通常３０当量／トン以下、好ましくは２０当
量／トン以下である。末端カルボキシル基の濃度が３０
当量／トンを越える場合、前記説明したオリゴマーの低
減効果が少なく、シートの耐湿性や熱安定性等も低下す
るために好ましくない。上述の原料ポリエステルの極限
粘度、オリゴマー含有量、末端カルボキシル基濃度の値
は、通常、これを成形してシートとしたときの物性値と
概ね同様の範囲の値となる。なお、本発明のシート物性
の改良効果を損わない範囲内であれば、ポリカーボネー
ト、ポリオレフィン、ポリアミド等をポリエステルに配
合してもよい。その配合量としては最大で３０重量％以
下が好ましく、更に好ましくは１０重量％以下である。Further, the concentration of the terminal carboxyl group of the polyester is usually 30 equivalents / ton or less, preferably 20 equivalents / ton or less. The concentration of terminal carboxyl groups is 30
If it exceeds the equivalent weight / ton, the effect of reducing the oligomer described above is small, and the moisture resistance and thermal stability of the sheet are also deteriorated, which is not preferable. The values of the intrinsic viscosity, oligomer content and terminal carboxyl group concentration of the above-mentioned raw material polyester are generally in the same range as the physical property values when this is molded into a sheet. Polycarbonate, polyolefin, polyamide and the like may be added to the polyester as long as the effect of improving the physical properties of the sheet of the present invention is not impaired. The blending amount thereof is preferably 30% by weight or less at the maximum, and more preferably 10% by weight or less.
【００１２】次に、前記のポリエステル原料を用いた、
ポリエステルシートの製造方法について説明する。本発
明のポリエステルシートは、溶融押出し急冷固化してシ
ート化されるものであり、実質的にほとんど結晶化して
いない。シート化の加工方法は特に限定されないが、例
えば、ポリエステル原料を常法により乾燥した後、押出
機により、通常２００〜３２０℃の範囲の樹脂温度で押
し出して、キャスティングドラム上で冷却固化し、シー
トを形成する方法が例示される。なお、該押出機にベン
トを装備することにより、乾燥工程を省いたり、乾燥時
間を短縮化することができる。Next, using the above polyester raw material,
A method for manufacturing the polyester sheet will be described. The polyester sheet of the present invention is melt-extruded, rapidly cooled and solidified to form a sheet, and is substantially not crystallized. The processing method of sheeting is not particularly limited, for example, after drying the polyester raw material by a conventional method, by an extruder, usually extruded at a resin temperature in the range of 200 ~ 320 ℃, solidified by cooling on a casting drum, A method of forming the is illustrated. By providing the extruder with a vent, the drying step can be omitted or the drying time can be shortened.
【００１３】該シート加工の際、シートの厚み均一性、
深絞り成形性や成形品の耐衝撃性を向上させる方法とし
て、次の条件が望ましい。冷却固化時のキャスティング
ドラムの温度は、通常１０〜６０℃、好ましくは２０〜
５０℃である。また、かかるキャスティングドラムの付
近に、１個以上のニップロールを装備し、シートの加工
製造時に、該ニップロールを押さえロールとして用いる
ことも好ましい方法の一つである。When the sheet is processed, the sheet has a uniform thickness,
The following conditions are desirable as a method for improving deep drawability and impact resistance of a molded product. The temperature of the casting drum during cooling and solidification is usually 10 to 60 ° C., preferably 20 to 60 ° C.
50 ° C. Further, it is also a preferable method to equip one or more nip rolls near the casting drum and use the nip rolls as a pressing roll at the time of processing and manufacturing a sheet.
【００１４】以上のような方法で得られるポリエステル
シートの厚み（ｔ）は、平均値として０．５〜３０ｍｍ
であることが必要であり、好ましくは１〜２０ｍｍの範
囲であり、更に好ましくは２〜１０ｍｍの範囲である。
該シートの厚みが薄すぎると、例えばシートの「こし」
が弱すぎたり、剛性や耐衝撃性が不足気味になったりす
るため後述する用途に使用し難く、逆に厚みが厚すぎる
と、例えばシート加工製造の困難さや成形加工性及び軽
量性が劣るようになり、更にはコスト的にも不利であ
る。The polyester sheet obtained by the above method has an average thickness (t) of 0.5 to 30 mm.
It is necessary to be, and it is preferably in the range of 1 to 20 mm, more preferably in the range of 2 to 10 mm.
If the thickness of the sheet is too thin, for example, "strain" of the sheet
Is too weak, or rigidity and impact resistance tend to be insufficient, so it is difficult to use for the applications described below. Conversely, if the thickness is too thick, for example, it becomes difficult to manufacture a sheet, and moldability and lightness are poor. It is also disadvantageous in terms of cost.
【００１５】また、本発明のポリエステルシートの高速
衝撃強度（ＦＩ）は１０００Ｎ以上、好ましくは２００
０Ｎ以上、更に好ましくは３０００Ｎ以上である。本発
明者らの検討結果によれば、高速衝撃強度（ＦＩ）とシ
ートの耐衝撃性とは大きな相関関係があり、ＦＩが１０
００Ｎ未満では、成形品の耐衝撃性が不十分であるため
に不適である。The polyester sheet of the present invention has a high-speed impact strength (FI) of 1000 N or more, preferably 200.
It is 0 N or more, more preferably 3000 N or more. According to the results of the study conducted by the present inventors, there is a strong correlation between the high speed impact strength (FI) and the impact resistance of the sheet, and the FI is 10 or less.
If it is less than 00N, the impact resistance of the molded product is insufficient, which is not suitable.
【００１６】更に、耐衝撃性の評価方法としては、厚み
依存性値（ＦI ／ｔ）が重要であり、実用特性としての
耐衝撃性を評価するには、前記のＦI の値だけでなく、
この高速衝撃強度（ＦＩ）の厚み（ｔ）による依存性を
加味する必要がある。本発明のポリエステルシートで
は、この厚み依存性値（ＦI ／ｔ）は通常５００Ｎ／ｍ
ｍ以上、好ましくは１０００Ｎ／ｍｍ以上である。かか
るＦＩ／ｔ値が５００Ｎ／ｍｍ未満である場合、耐衝撃
性の改良効果が不十分であるため不適である。Further, the thickness dependency value (FI / t) is important as the impact resistance evaluation method, and in order to evaluate the impact resistance as a practical characteristic, not only the above FI value but also
It is necessary to take into consideration the dependency of the high speed impact strength (FI) on the thickness (t). In the polyester sheet of the present invention, the thickness dependence value (FI / t) is usually 500 N / m.
m or more, preferably 1000 N / mm or more. When the FI / t value is less than 500 N / mm, the effect of improving impact resistance is insufficient, which is not suitable.
【００１７】一方、本発明の重要な構成要件として、ポ
リエステルシートの光線透過率が挙げられる。本発明者
らは、ポリエステルシートに遮光性を付与する方法を検
討した結果、シートの光線透過率を特定の範囲に規定す
れば、所望の特性を有するポリエステルシートが得られ
ることが明確となった。すなわち、本発明のポリエステ
ルシートの光線透過率は１０％以下、好ましくは５％以
下、更に好ましくは１％以下である。なお、ここでいう
光線透過率とは、シート面に対する全光線透過率を示
す。光線透過率が１０％を越える場合では、遮光性の改
良効果が不充分である。On the other hand, an important constituent factor of the present invention is the light transmittance of the polyester sheet. As a result of examining the method of imparting a light-shielding property to a polyester sheet, the present inventors have clarified that a polyester sheet having desired properties can be obtained if the light transmittance of the sheet is defined in a specific range. . That is, the light transmittance of the polyester sheet of the present invention is 10% or less, preferably 5% or less, more preferably 1% or less. The light transmittance here means the total light transmittance with respect to the sheet surface. When the light transmittance exceeds 10%, the effect of improving the light blocking effect is insufficient.
【００１８】本発明のポリエステルシートの光線透過率
を満足させるためには、該シートに不活性粒子を０．１
〜２０重量％、好ましくは０．５〜２０重量％、更に好
ましくは１〜１０重量％配合する。かかる配合量が０．
１重量％未満の場合では遮光性が不充分であり不適であ
る。一方、配合量が２０重量％を越える場合では、耐衝
撃性や曲げ弾性、外観、成形性等のシート物性が劣るよ
うになり不適である。In order to satisfy the light transmittance of the polyester sheet of the present invention, inert particles are added to the sheet in an amount of 0.1.
-20 wt%, preferably 0.5-20 wt%, more preferably 1-10 wt%. When the amount of such a compound is 0.
When it is less than 1% by weight, the light-shielding property is insufficient and unsuitable. On the other hand, if the compounding amount exceeds 20% by weight, the physical properties of the sheet such as impact resistance, flexural elasticity, appearance, and moldability become poor, which is not suitable.
【００１９】不活性粒子としては、酸化チタン粒子、カ
ーボンブラック粒子、硫酸バリウム粒子、又は炭酸カル
シウム粒子が好ましく用いられ、その中でも酸化チタン
粒子、カーボンブラック粒子が特に好ましい。ここで、
酸化チタンの粒子種については、特に限定されず、如何
なる粒子系であってもよく、粒子径は通常０．０１〜１
０μｍである。また、カーボンブラックの粒子種につい
ても、特に限定されないが、ファーネスブラック、サー
マルブラック、ランプブラック、アセチレンブラックが
ポリエステル中での分散性が良好である点で好ましい。
かかるカーボンブラックの粒子径は特に限定されず、例
えば凝集体の平均粒径が通常０．００５〜１０μｍであ
るAs the inert particles, titanium oxide particles, carbon black particles, barium sulfate particles, or calcium carbonate particles are preferably used, and among them, titanium oxide particles and carbon black particles are particularly preferable. here,
The particle type of titanium oxide is not particularly limited, and any particle system may be used, and the particle size is usually 0.01 to 1
0 μm. The type of carbon black particles is not particularly limited, but furnace black, thermal black, lamp black, and acetylene black are preferable because they have good dispersibility in polyester.
The particle size of the carbon black is not particularly limited, and for example, the average particle size of the aggregate is usually 0.005 to 10 μm.
【００２０】なお、本発明のポリエステルシートは、シ
ート自体あるいシートをさらに成形した成形品としての
美観、装飾効果を得るために、シートを様々な色彩に着
色化を行ってもよい。かかる方法としては特に限定され
るものではないが、染料または顔料等の色材を固体分散
剤を用いて樹脂中に分散させたドライカラー、色材を液
体分散剤を用いて樹脂中に分散させたペーストカラー、
色材を高沸点液状分散剤を用いて樹脂中に分散させたリ
キッドカラー、及び色材を樹脂中に最終濃度の数１０倍
の高濃度に分散させたマスターバッチが知られている。
これらの中では、樹脂中への分散性が良好であり、また
配合時の取扱いが容易であることから、マスターバッチ
を用いる着色化が好ましい。色材としては、各種の染
料、有機顔料または無機顔料等の中から任意に選択で
き、樹脂中の分散性、着色材自身の分配性、耐候性、熱
安定性、衛生性及びコスト等を勘案して適宜選択すれば
よい。The polyester sheet of the present invention may be colored in various colors in order to obtain an aesthetic and decorative effect as a molded product obtained by further molding the sheet itself or the sheet. The method is not particularly limited, but a dry color in which a coloring material such as a dye or a pigment is dispersed in a resin using a solid dispersant, and a coloring material is dispersed in the resin using a liquid dispersant. Paste color,
A liquid color in which a coloring material is dispersed in a resin using a high-boiling-point liquid dispersant, and a masterbatch in which the coloring material is dispersed in the resin at a high concentration of several tens of times the final concentration are known.
Among these, coloring using a masterbatch is preferable because the dispersibility in the resin is good and the handling at the time of compounding is easy. The colorant can be arbitrarily selected from various dyes, organic pigments or inorganic pigments, and the dispersibility in the resin, dispersibility of the colorant itself, weather resistance, thermal stability, hygiene and cost are taken into consideration. Then, it may be appropriately selected.
【００２１】更に、上記の粒子、色材以外にも、必要に
応じて隠蔽材、酸化防止剤、紫外線吸収剤、難燃化剤及
び易滑剤等の各種の添加剤を適宜配合される。さらに
は、表面の傷入り防止や、帯電防止等を目的とした各種
の表面処理等を行っても構わない。本発明のポリエステ
ルシートは、本発明の構成要件を満足していれば、単層
構造でも、積層構造であってもよい。積層構造の場合、
例えば中間層に再生ポリエステル層を形成しても良い
し、表面層のみに、傷入り防止や帯電防止、濡れ性改良
を意図した、各種の機能を有する層を積層しても何ら差
し支えない。Further, in addition to the above-mentioned particles and coloring material, various additives such as a concealing material, an antioxidant, an ultraviolet absorber, a flame retardant, and a slippery agent may be appropriately blended if necessary. Further, various surface treatments may be performed for the purpose of preventing damage to the surface, preventing static charge, and the like. The polyester sheet of the present invention may have a single-layer structure or a laminated structure as long as it satisfies the constituent requirements of the present invention. In case of laminated structure,
For example, a recycled polyester layer may be formed as the intermediate layer, or a layer having various functions intended to prevent scratches, prevent electrification, and improve wettability may be laminated only on the surface layer.
【００２２】本発明のポリエステルシートは、その極め
て優れた遮光性、及び耐衝撃性等を活かして、各種多様
な用途に用いることが可能である。また、必要に応じ
て、真空成形、圧空成形やプレス法等により各種形状に
成形加工してもよい。以下に本発明の遮光性ポリエステ
ルシートに特に有用である用途に関して説明する。The polyester sheet of the present invention can be used for various purposes by utilizing its extremely excellent light-shielding property and impact resistance. Further, if necessary, it may be formed into various shapes by vacuum forming, pressure forming, pressing or the like. The applications that are particularly useful for the light-shielding polyester sheet of the present invention will be described below.
【００２３】第１に看板としての用途が挙げられる。看
板としては、広告塔、案内板、ナンバー登録板、更には
夜間点灯タイプの看板等が挙げられる。本発明のシート
が看板として使用される理由は、耐溶剤性、耐衝撃性、
安全性、外観特性、隠蔽性にも優れている点にある。看
板としての使用には高いレベルでの耐衝撃性、およびこ
しの強さが特に要求されるのでシートの厚みとしては３
〜２０ｍｍ、特に４〜１０ｍｍの範囲であることが望ま
しい。First, it can be used as a signboard. Examples of the signboard include an advertising tower, a guide board, a number registration board, and a night-lighting type signboard. The reason why the sheet of the present invention is used as a signboard is solvent resistance, impact resistance,
It is also excellent in safety, appearance characteristics, and hiding power. The use as a signboard requires a high level of impact resistance and the strength of a strainer, so the sheet thickness is 3
It is desirable that the range is -20 mm, especially 4-10 mm.
【００２４】第２に、棚板、仕切板、壁板、腰板又は屋
根板としての用途が挙げられる。具体的な棚板の用途と
しては、キャビネット、展示用棚、陳列用棚等が例示さ
れ、用いる場所としては商店や美術館及び食器棚や冷蔵
庫の内部が例示される。特に棚板の用途は、上記の遮光
性、耐溶剤性や耐衝撃性及び安全性だけでなく、シート
の美麗さ、及び食品衛生性の特性が最大限に発揮できる
分野である。Secondly, it can be used as a shelf board, a partition board, a wall board, a waist board or a roof board. Specific applications of the shelves include cabinets, display shelves, display shelves, and the like, and examples of places of use include shops, museums, cupboards, and refrigerators. In particular, the application of the shelf board is a field in which not only the above-mentioned light-shielding property, solvent resistance, impact resistance and safety, but also the beauty of the sheet and food hygiene characteristics can be maximized.
【００２５】また、具体的な仕切板の用途としては、安
全間仕切や冷蔵庫内部の仕切板、及びスーパーマーケッ
トやデパートの食料品等の商品の陳列の仕切板が例示さ
れる。特に仕切板の用途は、上記の遮光性、耐溶剤性や
耐衝撃性及び安全性だけでなく、シートの美麗さ、及び
食品衛生性の特性が最大限に発揮できる分野である。壁
板や腰板としての用途の具体例は、防音壁、歩道橋の目
隠し用の壁、及びバルコニーの腰板や階段の腰板が例示
される。この用途として好ましく用いられる理由は、上
記の遮光性、耐溶剤性、耐衝撃性や安全性である。Specific examples of uses of the partition plate include a safety partition, a partition plate inside a refrigerator, and a partition plate for displaying products such as groceries in supermarkets and department stores. In particular, the use of the partition plate is a field in which not only the above-mentioned light-shielding property, solvent resistance, impact resistance and safety, but also the beauty of the sheet and food hygiene properties can be maximized. Specific examples of the use as a wall board or a wainscot include a soundproof wall, a wall for blindfolding a pedestrian bridge, and a wainscot for a balcony or a wainscot for stairs. The reason why it is preferably used for this purpose is the above-mentioned light-shielding property, solvent resistance, impact resistance and safety.
【００２６】屋根板の用途としては、一般の建造物の屋
根板に限定されるものではなく、その外観特性を生かし
た用途として、例えばペットの小屋の屋根板や玩具用の
屋根も例示可能である。以上の棚板、仕切板、壁板、腰
板又は屋根板としての使用には高いレベルでの耐衝撃
性、およびこしの強さが要求されるために、かかる用途
のシートの厚みは３〜２０ｍｍ、特に４〜１０ｍｍの範
囲であることが望ましい。The application of the roof plate is not limited to the roof plate of a general building, and the application of its appearance characteristics can be exemplified by the roof plate of a pet hut or the roof of a toy. is there. The above-mentioned shelf plate, partition plate, wall plate, waist plate or roof plate is required to have a high level of impact resistance and strain resistance, and thus the thickness of the sheet for such an application is 3 to 20 mm. It is particularly preferable that the range is 4 to 10 mm.
【００２７】第３にカバーとしての用途が挙げられる。
具体的には、例えば照明器具カバーとして使用され、自
動車、電車、バス、タクシーのような乗物の内部、室内
用や街灯用のカバーが例示される。また、一般の機械カ
バーや安全カバーとして使用され、具体的には、通常の
小型や大型機械のカバー、コンピューターや医療器のカ
バー、スキーリフトの前面カバー、遊園地にあるような
遊具の安全カバー、安全マスク、防滴カバー、電話ボッ
クスが例示される。本発明のシートをかかるカバーとし
て使用すれば、耐溶剤性、耐衝撃性及び安全性や、更に
は遮光性による機器等の保護が可能であり、本発明の特
徴を最大限に発揮できる。Thirdly, it can be used as a cover.
Specifically, for example, it is used as a lighting equipment cover, and covers interiors of vehicles such as automobiles, trains, buses, and taxis, indoors, and streetlights. It is also used as a general machine cover or safety cover, specifically, covers for ordinary small and large machines, covers for computers and medical devices, front covers for ski lifts, and safety covers for playground equipment such as in amusement parks. , A safety mask, a drip-proof cover, and a telephone box. When the sheet of the present invention is used as such a cover, solvent resistance, impact resistance and safety, as well as protection of equipment and the like by light shielding properties can be achieved, and the features of the present invention can be maximized.
【００２８】第４に容器としての用途が挙げられる。か
かる容器とは、本発明のシートを公知の真空、圧空、プ
レス成形等を実施することにより成形した容器を指す。
かかる成形容器としては、各種の食品の運搬や収納に使
用する食品容器や、一般家庭で使用されるようなごみ箱
や洗面器が例示される。本発明のシートは、耐溶剤性、
耐衝撃性、安全性及び外観特性に優れ、成形加工性も良
好であり、かかるシートを様々な形状に成形加工して使
用することが可能である。また容器としては、医療用成
形品が挙げられ、例えば保育器やベビーケース等の乳幼
児用のものや、病人用の調度類は、本発明のシートの特
徴を最大限に生かす事ができ、特に好ましい用途である
といえる。すなわち、本発明のシートは、耐溶剤性、耐
衝撃性、安全性及び外観特性に優れているだけでなく、
安全衛生性にも優れているので乳幼児が使用する製品の
用途には非常に好適である。Fourthly, its use as a container can be mentioned. Such a container refers to a container formed by subjecting the sheet of the present invention to known vacuum, compressed air, press molding or the like.
Examples of such molded containers include food containers used for transporting and storing various foods, and trash cans and washbasins used in general households. The sheet of the present invention has solvent resistance,
It is excellent in impact resistance, safety and appearance characteristics and has good moldability, and it is possible to mold and use such a sheet in various shapes for use. Examples of the container include molded articles for medical use, for example, those for babies and infants such as incubators and baby cases, and furniture for the sick, in which the features of the sheet of the present invention can be utilized to the maximum extent, in particular. It can be said to be a preferable application. That is, the sheet of the present invention is not only excellent in solvent resistance, impact resistance, safety and appearance characteristics,
Since it is also excellent in safety and hygiene, it is very suitable for applications of products used by infants.
【００２９】第５に、洗面場や風呂場において使用する
内装材や用具としての用途が挙げられる。具体例として
は、洗面シンクや風呂の浴槽用バックシェルが挙げられ
る。かかる用途に使用される理由は、耐溶剤性、耐衝撃
性、安全性及び外観特性に優れている点や、安全衛生性
に優れている点が挙げられる。本発明においては、前記
成形品を製造する場合において本発明のポリエステルシ
ートを成形加工した後に熱結晶化する方法も好ましい。
この方法を採用することにより、成形品に耐熱性を付与
することが出来る。ここで、耐熱性とは例えば８０℃以
上の高温下でも、熱変形しないような特性を指す。Fifth, it can be used as an interior material or a tool used in a bathroom or a bathroom. Specific examples include a sink and a back shell for a bath tub. The reason why it is used for such an application is that it is excellent in solvent resistance, impact resistance, safety and appearance characteristics, and is excellent in safety and hygiene. In the present invention, in the case of producing the above-mentioned molded article, a method of subjecting the polyester sheet of the present invention to molding and heat crystallization is also preferable.
By adopting this method, heat resistance can be imparted to the molded product. Here, the heat resistance refers to the property of not being thermally deformed even at a high temperature of 80 ° C. or higher.
【００３０】[0030]
【実施例】以下、本発明を実施例を挙げて、更に詳細に
説明するが、本発明はその要旨を越えない限り、以下の
実施例により限定されるものではない。なお、実施例に
おける種々の物性及び特性の測定方法、定義は下記の通
りである。また、実施例及び比較例中で「部」とあるの
は「重量部」を示す。 （１）極限粘度 ポリエステルシートより任意に採取した、不要物（配合
した粒子）を除いたポリエステル１ｇを、フェノール／
テトラクロロエタン＝５０／５０（重量比）の混合溶媒
１００ｍｌ中に溶解し、必要に応じて濾過後、３０℃で
測定した。EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the scope of the invention. The measuring methods and definitions of various physical properties and characteristics in the examples are as follows. In addition, "parts" in Examples and Comparative Examples means "parts by weight". (1) Intrinsic viscosity 1 g of polyester excluding unnecessary substances (blended particles) arbitrarily collected from a polyester sheet was added with phenol /
It was dissolved in 100 ml of a mixed solvent of tetrachloroethane = 50/50 (weight ratio), filtered as necessary, and measured at 30 ° C.
【００３１】（２）共重合成分：ジエチレングリコール
（ＤＥＧ）及びシクロヘキサンジメタノール（１，４−
ＣＨＤＭ）の定量 ポリエステルシートより任意に採取したポリエステルを
常法により加水分解し、生成したジオール成分をガスク
ロマトグラフ法で定量した。 （３）環状三量体の定量 ポリエステルシートより任意に２００ｍｇ採取して、そ
れをクロロホルム／ヘキサフルオロイソプロパノール
（容量比３／２）混合溶液に溶解し、更にクロロホルム
２０ｍｌを加えて希釈した。これにメタノール１０ｍｌ
を加え、試料を析出させて、濾過した後の濾液を得た。
かかる濾液を乾固後、残渣にジメチルホルムアミド２５
ｍｌに溶解した液について液体クロマトグラフ法にて定
量分析した。(2) Copolymerization component: diethylene glycol (DEG) and cyclohexanedimethanol (1,4-
Quantification of CHDM) Polyester arbitrarily collected from the polyester sheet was hydrolyzed by a conventional method, and the produced diol component was quantified by gas chromatography. (3) Quantification of cyclic trimer 200 mg of a polyester sheet was arbitrarily collected, dissolved in a chloroform / hexafluoroisopropanol (volume ratio 3/2) mixed solution, and further diluted with 20 ml of chloroform. 10 ml of methanol
Was added to deposit a sample, and a filtrate after filtration was obtained.
After the filtrate was dried to dryness, dimethylformamide 25 was added to the residue.
The liquid dissolved in ml was quantitatively analyzed by liquid chromatography.
【００３２】（４）末端カルボキシル基濃度 ポリエステルシートより任意に１００ｍｇ採取して、そ
れをベンジルアルコール５ｍｌに加熱溶解した後、これ
にクロロホルム５ｍｌを加えて希釈した後、フェノール
レッドを指示薬として、０．１Ｎ−水酸化ナトリウム／
ベンジルアルコール溶液により滴定し定量した。 （５）厚み（ｔ） ポリエステルシートを１０ｍｍ毎に厚みを測定し、その
平均値を厚み（ｔ）とした。(4) Terminal Carboxyl Group Concentration 100 mg of a polyester sheet was arbitrarily sampled, dissolved by heating in 5 ml of benzyl alcohol, diluted with 5 ml of chloroform, and then diluted with phenol red as an indicator of 0. 1N-sodium hydroxide /
It was titrated with a benzyl alcohol solution and quantified. (5) Thickness (t) The thickness of the polyester sheet was measured every 10 mm, and the average value was used as the thickness (t).
【００３３】（６）光線透過率 ＪＩＳ Ｋ−７１０５に準拠して、ポリエステルシート
の光線透過率を測定した。なお、この光線透過率とは、
全光線透過率を示す。 （７）高速衝撃強度（ＦＩ） ポリエステルシートより任意に１０ｃｍ×１０ｃｍ大に
切り出し、２３℃、６５％ＲＨの雰囲気下にて、レオメ
トリックス社製の高速衝撃試験機；ＨＩＧＨＲＡＴＥ
ＩＭＰＡＣＴ ＴＥＳＴＥＲ ＲＩＴー８０００を用い
て、打ち抜きロッドのプローブ径が５／８インチ、プロ
ーブの先端Ｒが５／１６インチ、打ち抜き速度１．０ｍ
／ｓｅｃの条件で、シートを打ち抜き、その衝撃強度を
測定した。この評価を１２回繰り返し、最大値と最小値
を除いた１０回の測定値の平均値を高速衝撃強度（Ｆ
Ｉ）とした。(6) Light transmittance The light transmittance of the polyester sheet was measured according to JIS K-7105. The light transmittance is
The total light transmittance is shown. (7) High-speed impact strength (FI) Rheometrics high-speed impact tester manufactured by Rheometrics Co., Ltd. under the atmosphere of 23 ° C. and 65% RH, arbitrarily cut out from a polyester sheet into a size of 10 cm × 10 cm.
Using IMPACT TESTER RIT-8000, the probe diameter of the punching rod is 5/8 inch, the tip R of the probe is 5/16 inch, and the punching speed is 1.0 m.
The sheet was punched out under the condition of / sec and the impact strength was measured. This evaluation was repeated 12 times, and the average value of the 10 measured values excluding the maximum value and the minimum value was taken as the high-speed impact strength (F
I).
【００３４】実施例１ テレフタル酸１００部、エチレングリコール４４．２部
及び１，４−シクロヘキサンジメタノ−ル（シス／トラ
ンス比：３０／７０）３．３１部のスラリ−を調整し、
予め２．３１部のビス−β−ヒドロキシエチルテレフタ
レ−トを添加し、２５０℃に保持したエステル化槽に４
時間かけて順次供給した。フィード終了後、１時間エス
テル化を進行させた後、半量を重縮合槽に移し、リン酸
０．００８８５部（対ポリマー１５０ｐｐｍ）及び二酸
化ゲルマニウム０．００７０８部（対ポリマー１２０ｐ
ｐｍ）を仕込み、２５０℃から２８０℃まで漸次昇温す
ると共に、常圧から漸次減圧し、０．５トールに保持し
た。反応を３時間おこなった後、極限粘度０．５５ｄｌ
／ｇ、環状３量体０．９３重量部のポリエチレンテレフ
タレート系チップ（プレポリマーチップ）を得た。次
に、かかるプレポリマーチップ表面をＢｅｐｅｘ社製攪
拌結晶化機にて１５０℃で結晶化させた後、静置式固相
重合塔に移し、２００／ｋｇ−ｈｒの窒素流通下、１４
０℃で３時間乾燥後、２１０℃２４時間固相重合し、極
限粘度は０．８４の原料ポリエステル（ａ）を得た。Example 1 A slurry of 100 parts of terephthalic acid, 44.2 parts of ethylene glycol and 3.31 parts of 1,4-cyclohexane dimethanol (cis / trans ratio: 30/70) was prepared,
2.31 parts of bis-β-hydroxyethyl terephthalate was added in advance, and 4 parts was added to the esterification tank kept at 250 ° C.
It was supplied sequentially over time. After completion of the feed, the esterification was allowed to proceed for 1 hour, then half of the amount was transferred to a polycondensation tank, and 0.00885 parts of phosphoric acid (150 ppm of polymer) and 0.00708 parts of germanium dioxide (120 p of polymer).
pm) was charged, the temperature was gradually raised from 250 ° C. to 280 ° C., the atmospheric pressure was gradually reduced, and the pressure was maintained at 0.5 Torr. After the reaction for 3 hours, the intrinsic viscosity is 0.55 dl
A polyethylene terephthalate-based chip (prepolymer chip) having a cyclic content of 0.93 parts by weight was obtained. Next, the surface of such a prepolymer chip was crystallized at 150 ° C. with a stirring crystallizer manufactured by Bepex Co., and then transferred to a stationary solid-phase polymerization tower, under a nitrogen flow of 200 / kg-hr.
After drying at 0 ° C. for 3 hours, solid phase polymerization was performed at 210 ° C. for 24 hours to obtain a raw material polyester (a) having an intrinsic viscosity of 0.84.
【００３５】次いで、上記のポリエステル（ａ）に、濃
度が２０重量％になるように酸化チタン粒子を二軸混練
り押出機を用いて溶融混練りし、酸化チタン粒子配合ポ
リエステルを得た。次に、得られた上記の酸化チタン粒
子２０重量％配合ポリエステルと原料（ａ）を重量比１
０：９０、すなわち、酸化チタン粒子が２重量％になる
ように混合し、ポリエステル（Ａ）を得た。次いで
（Ａ）を真空下１６０℃で４時間乾燥し、樹脂温度２９
０℃にて、溶融押出しを行い、幅１．１ｍ、厚み５．０
ｍｍの表面平坦の白色ポリエステルシートを得、更に耳
部を裁断し１．０ｍ幅のシートとした。評価結果を表−
１に示す。Next, titanium oxide particles were melt-kneaded with the above polyester (a) so as to have a concentration of 20% by weight using a twin-screw kneading extruder to obtain titanium oxide particle-blended polyester. Next, the above-obtained titanium oxide particle 20% by weight blended polyester and the raw material (a) were mixed in a weight ratio of 1
0:90, that is, the titanium oxide particles were mixed so as to be 2% by weight to obtain polyester (A). Then, (A) is dried under vacuum at 160 ° C. for 4 hours to give a resin temperature of 29
Melt extrusion at 0 ° C, width 1.1m, thickness 5.0
A white polyester sheet having a flat surface of 1.0 mm was obtained, and the ears were further cut to obtain a sheet having a width of 1.0 m. Table-Evaluation results
It is shown in FIG.
【００３６】更に、このポリエステルシートを５００ｍ
ｍ×９００ｍｍ大に裁断し、そのまま棚板と仕切り板と
して使用した。具体的な用途として、商店内において、
食器の展示用の棚、及び食品の陳列用の棚として使用し
た。本発明の棚板は、実用物性としての耐衝撃性や耐溶
剤性、及び破損した場合の安全性も問題なく、さらには
非常に美麗な白色で、かつ隠蔽性の高い製品である。Further, this polyester sheet is 500 m
It was cut into a size of m × 900 mm and used as it was as a shelf plate and a partition plate. As a specific application, in the store,
Used as a shelf for displaying dishes and a shelf for displaying food. The shelf board of the present invention is a product having no impact resistance and solvent resistance as practical physical properties and safety in case of breakage, and is a very beautiful white product with high concealing property.
【００３７】具体的な用途として、安全間仕切や冷蔵庫
内部の仕切板、及びスーパーマーケットやデパートの食
料品等の商品の陳列の仕切として使用した。本発明の仕
切板は、白色で美麗であり、実用物性としての耐衝撃性
や耐溶剤性、及び破損した場合の安全性も問題なく、ま
た食品衛生性の点についても良好であり、非常に有用で
高級感のある製品となった。As a specific application, it was used as a safety partition, a partition plate inside a refrigerator, and a partition for displaying products such as foods in supermarkets and department stores. The partition plate of the present invention is white and beautiful, and there is no problem in impact resistance and solvent resistance as practical physical properties, and safety in case of breakage, and also in terms of food hygiene, it is very good. It became a useful and high-class product.
【００３８】また、このポリエステルシートを９００ｍ
ｍ×３０００ｍｍ大に裁断し、そのまま壁板及び腰板と
して使用した。具体的な用途として、防音壁、歩道橋の
目隠し用の壁、及びバルコニーの腰板や階段の腰板とし
て使用した。本発明の壁板及び腰板は、実用物性として
の耐衝撃性や耐溶剤性、及び破損した場合の安全性も問
題なく、かつ非常に美麗な白色を呈した製品である。更
に、白色であるので、自由自在に色付けを行えるし、ま
たこれらの用途は非常に隠蔽性の要求される用途である
ので、本発明のシートの特性を大いに活用できた具体例
である。This polyester sheet is 900 m
It was cut into a size of m × 3000 mm and used as a wall plate and a waist plate as it was. As specific applications, it was used as a soundproof wall, a wall for blindfolding a pedestrian bridge, and as a wainscot for balconies and stairs for stairs. The wall board and the wainscot of the present invention are products having a very beautiful white color with no problem in impact resistance and solvent resistance as practical physical properties, and safety in the case of breakage. Furthermore, since it is white, it can be colored freely, and since these applications require very hiding, they are examples in which the characteristics of the sheet of the present invention can be utilized to a great extent.
【００３９】更に、上記のポリエステルシートと同様に
して、５００ｍｍ幅で各種の長さのシートを裁断加工し
た。それらの材料を接着剤及び止め具等を用いて、キャ
ビネットを製造した。かかるキャビネットは実用物性と
しての耐衝撃性、耐溶剤性や破損した場合の安全性にも
優れ、かつ非常に美麗な製品である。Further, similarly to the above polyester sheet, a sheet having a width of 500 mm and various lengths was cut and processed. Cabinets were manufactured from these materials using adhesives and fasteners. Such a cabinet is a very beautiful product that is excellent in impact resistance as a physical property, solvent resistance, and safety in case of breakage.
【００４０】実施例２ 実施例１において、耳部や裁断加工時に生じた切断片を
任意に回収した。それらを粉砕機にて粉砕し、次いで常
法にて乾燥後、二軸押出機を用いてチップ化し酸化チタ
ン粒子が２重量％配合された再生ポリエステル（Ｂ）を
得た。上記（Ｂ）と、実施例１の酸化チタン粒子が２重
量％配合されたポリエステル（Ａ）を別々に常法にて乾
燥し、別個の溶融押出機により、材料（Ｂ）が内層で材
料（Ａ）が外層になるように３層複合化し、幅１．１
ｍ，厚み６．０ｍｍの表面平坦の白色ポリエステルシー
トを得、更に耳部を裁断し１．０ｍ幅のシートとした。
なお厚み比の設定は、外層／内層／外層＝１／１／１で
ある。評価結果を表−１に示す。Example 2 In Example 1, ears and cut pieces produced during cutting were arbitrarily collected. They were crushed with a crusher and then dried by a conventional method, and then chipped with a twin-screw extruder to obtain a regenerated polyester (B) containing 2% by weight of titanium oxide particles. The above (B) and the polyester (A) containing 2% by weight of the titanium oxide particles of Example 1 were separately dried by a conventional method, and the material (B) was used as a material ( A) is a three-layer composite with an outer layer, width 1.1
A white polyester sheet having a flat surface of m and a thickness of 6.0 mm was obtained, and the ears were further cut to obtain a sheet having a width of 1.0 m.
The thickness ratio is set to outer layer / inner layer / outer layer = 1/1/1. Table 1 shows the evaluation results.
【００４１】更に、この白色ポリエステルシートを９０
０ｍｍ×３０００ｍｍ大に裁断し、そのまま屋根板とし
て使用した。具体的な用途として、自転車置き場の屋根
板として使用した。本発明の屋根板は、実用物性として
の耐衝撃性や耐溶剤性、及び破損した場合の安全性も問
題なく、さらには非常に美麗な白色で、かつ遮光性の高
い製品である。Further, 90% of this white polyester sheet is used.
It was cut to a size of 0 mm x 3000 mm and used as a roof plate as it was. As a specific application, it was used as a roof board for a bicycle storage. The roof panel of the present invention is a product having practical impact resistance, solvent resistance, safety in case of breakage, and a very beautiful white color and high light-shielding property.
【００４２】また、この白色ポリエステルシートを３５
０ｍｍ×７００ｍｍ大に裁断し、そのまま看板として使
用した。この看板につき更に詳しく説明すると、別途同
一形状の透明シートに印刷を施し、印刷面が内側になる
ようにしてこの白色ポリエステルシートを貼り合わせた
後、端部を止め具にて固定して製造した看板である。こ
の看板を広告塔や案内板、更にはガソリンスタンドの表
示板として使用した。The white polyester sheet is
It was cut into a size of 0 mm × 700 mm and used as it was as a signboard. This signboard will be described in more detail. Separately, a transparent sheet of the same shape was printed, and the white polyester sheet was pasted so that the printed surface was on the inside, and then the ends were fixed with fasteners. It is a signboard. This signboard was used as an advertising tower, information board, and as a display board for gas stations.
【００４３】本発明の看板は実用物性としての耐衝撃性
や耐溶剤性及び破損した場合の安全性も問題なく、非常
に美麗な製品である。また本発明の看板は、上記の印刷
した透明シートを変えるだけで看板の内容を容易に変更
することが出来るので非常に便利で経済的である。The signboard of the present invention is a very beautiful product without any problems in impact resistance and solvent resistance as practical physical properties and safety in case of damage. Further, the signboard of the present invention is very convenient and economical because the contents of the signboard can be easily changed only by changing the printed transparent sheet.
【００４４】実施例３ エステル化反応槽で、ビス−β−ヒドロキシエチルテレ
フタレ−トオリゴマー１００部の存在下、テレフタル酸
８７部とエチレングリコール４２部とを常圧下２５０℃
で反応させてエステル化反応を行なった。反応開始４時
間後、エステル化率９７％のポリエステルオリゴマーを
得た。次いで本オリゴマーのうち１００部を重合槽に移
送し、１，４−シクロヘキサンジメタノ−ル（シス／ト
ランス比：２５／７５）を３部、ジエチレングリコール
を０．８部添加した後に、酢酸コバルト・四水塩０．０
３部と正リン酸０．０１９部と三酸化アンチモン０．０
３５部を添加し、減圧化、加熱し、温度を最終的に２８
５℃に昇温し、合計４時間３０分重縮合の反応を行な
い、極限粘度が０．７２の原料ポリエステル（ｃ）を得
た。Example 3 In an esterification reaction tank, 87 parts of terephthalic acid and 42 parts of ethylene glycol were added at 250 ° C. under atmospheric pressure in the presence of 100 parts of bis-β-hydroxyethyl terephthalate oligomer.
And an esterification reaction was carried out. Four hours after the start of the reaction, a polyester oligomer having an esterification rate of 97% was obtained. Next, 100 parts of this oligomer were transferred to a polymerization tank, and after adding 3 parts of 1,4-cyclohexanedimethanol (cis / trans ratio: 25/75) and 0.8 part of diethylene glycol, cobalt acetate. Tetrahydrate 0.0
3 parts, orthophosphoric acid 0.019 parts, and antimony trioxide 0.0
Add 35 parts, depressurize and heat to a final temperature of 28
The temperature was raised to 5 ° C., and polycondensation reaction was performed for a total of 4 hours and 30 minutes to obtain a raw material polyester (c) having an intrinsic viscosity of 0.72.
【００４５】次いで、上記のポリエステル（ｃ）に、濃
度が３重量％になるように酸化チタン粒子を二軸混練り
押し出し機を用いて溶融混練りし、酸化チタン粒子配合
ポリエステル（Ｃ）を得た。次いで、得られた原料ポリ
エステル（Ｃ）を真空下１６０℃で４時間乾燥後、樹脂
温度２９０℃にて、溶融押出しを行い、幅１．１ｍ、厚
み３．０ｍｍのポリエステルシートを得、更に耳部を裁
断し１．０ｍ幅のシートとした。評価結果を表−１に示
す。Next, titanium oxide particles were melt-kneaded with the above polyester (c) so as to have a concentration of 3% by weight using a biaxial kneading extruder and a titanium oxide particle-blended polyester (C) was obtained. It was Then, the obtained raw material polyester (C) is dried under vacuum at 160 ° C. for 4 hours, and then melt-extruded at a resin temperature of 290 ° C. to obtain a polyester sheet having a width of 1.1 m and a thickness of 3.0 mm. The part was cut into a sheet having a width of 1.0 m. Table 1 shows the evaluation results.
【００４６】また、この白色ポリエステルシートを１０
００ｍｍ×１５００ｍｍ大に裁断した後にの真空成形を
行い、風呂の浴槽用のバックシェルとして使用した。す
なわち、別途エポキシ樹脂にて成形した半透明の成形品
の外側に、この白色ポリエステル成形品を貼り合わせ
て、風呂の浴槽を製造した。得られた浴槽は、隠蔽性の
高い白色成形品により、極めて意匠性の高い製品となっ
た。本発明の風呂の浴槽用のバックシェルは、上記の外
観の良さだけでなく容易に様々な形状にすることが出来
るので、非常に経済的な製品である。Also, this white polyester sheet is
After cutting into a size of 00 mm × 1500 mm, vacuum forming was performed and used as a back shell for a bath tub. That is, the white polyester molded product was attached to the outside of a semitransparent molded product separately molded with an epoxy resin to manufacture a bathtub. The obtained bathtub was a product with extremely high designability due to the white molded product with high concealing properties. INDUSTRIAL APPLICABILITY The back shell for a bathtub of the present invention is a very economical product because it can be easily formed into various shapes in addition to the above-mentioned good appearance.
【００４７】また、この白色ポリエステルシートを５０
０ｍｍ×１０００ｍｍ大に裁断した後に、絞り深さ３０
０ｍｍの真空成形を行い、乳児の簡易ベッドを製造し
た。本発明の医療用成形品は、安全衛生性や実用物性と
しての耐衝撃性や耐溶剤性、及び破損した場合の安全性
も問題なく、さらには非常に美麗な白色の製品である。Further, this white polyester sheet is made into 50
After cutting to a size of 0 mm x 1000 mm, the drawing depth is 30
Vacuum molding of 0 mm was performed to produce a baby cot. The medical molded article of the present invention is a safety and hygiene property, impact resistance and solvent resistance as practical physical properties, and safety when broken, and is a very beautiful white product.
【００４８】更に従来の製品より非常に安価に製造で
き、使い捨て可能な製品であるので、非常に衛生的なも
のであり、まさに乳幼児や病人用の物としては最適な製
品であるといえる。次に、この白色ポリエステルシート
を１０００ｍｍ×１０００ｍｍ大に裁断した後に、絞り
深さ３００ｍｍの真空成形を行い、食品用の容器を製造
した。この製品を食パンや菓子パンの運搬や収納の容器
として使用した。Furthermore, since it is a product that can be manufactured at a much lower cost than conventional products and is a disposable product, it is very hygienic and can be said to be the most suitable product for infants and sick people. Next, after this white polyester sheet was cut into a size of 1000 mm × 1000 mm, vacuum forming was performed with a drawing depth of 300 mm to manufacture a food container. This product was used as a container for transporting and storing bread and sweet bread.
【００４９】本発明の食品用容器は安全衛生性や実用物
性としての耐衝撃性や耐溶剤性、及び破損した場合の安
全性も問題なく、さらには非常に美麗な白色の製品であ
る。更に非常に安価に製造でき、使い捨て可能な製品で
あるので、非常に衛生的なものである。The food container of the present invention has no problem in safety and hygiene, impact resistance and solvent resistance as practical physical properties, and safety in case of damage, and is a very beautiful white product. Moreover, it is a very hygienic product as it is a very inexpensive product to manufacture and a disposable product.
【００５０】実施例４ 実施例３のポリエステル（ｃ）を常法にて乾燥後、濃度
が３重量％になるように酸化チタン粒子と色材（フタロ
シアニンブルー）及び少量の固体分散剤を、二軸混練り
押し出し機を用いて溶融混練りし、色材と酸化チタン粒
子が配合されたポリエステル（Ｄ）を得た。Example 4 The polyester (c) of Example 3 was dried by a conventional method, and then titanium oxide particles, a coloring material (phthalocyanine blue) and a small amount of a solid dispersant were mixed so that the concentration became 3% by weight. Melt kneading was performed using an axial kneading extruder to obtain a polyester (D) in which a coloring material and titanium oxide particles were blended.
【００５１】次いで、得られた原料ポリエステル（Ｄ）
を真空下１６０℃で４時間乾燥後、樹脂温度２９０℃に
て、溶融押出しを行い、幅１．１ｍ、厚み３．０ｍｍの
ポリエステルシートを得、更に耳部を裁断し１．０ｍ幅
のシートとした。評価結果を表−１に示す。また、この
水色のポリエステルシートを６００ｍｍ×６００ｍｍ大
に裁断した後に、絞り深さ７０ｍｍの真空成形を行なっ
た。詳しくは、中央の４００ｍｍ×４００ｍｍ大の部分
の絞り深さを５０ｍｍとし、絞り深さ方向と垂直方向か
ら見た、その中央部分が円弧状となるような形状になる
ように真空成形し、端部を切断加工した。この成形品を
照明カバーとして使用した。なお、この用途の場合、照
明の明かりが外部に漏れるようにしてカバーして使用し
た。Then, the obtained raw material polyester (D)
Was dried under vacuum at 160 ° C. for 4 hours, and then melt-extruded at a resin temperature of 290 ° C. to obtain a polyester sheet having a width of 1.1 m and a thickness of 3.0 mm. And Table 1 shows the evaluation results. Further, after cutting this light blue polyester sheet into a size of 600 mm × 600 mm, vacuum forming with a drawing depth of 70 mm was performed. Specifically, the drawing depth of the central 400 mm x 400 mm large part is set to 50 mm, and vacuum forming is performed so that the central part has an arc shape when viewed from the direction perpendicular to the drawing depth direction. The part was cut. This molded product was used as a lighting cover. In addition, in this application, it was used as a cover so that the illumination light leaked to the outside.
【００５２】本発明の照明カバーは、実用物性としての
耐衝撃性や耐溶剤性、及び破損した場合の安全性も問題
なく、さらには非常に美麗な水色の製品である。また、
この水色ポリエステルシートを５００ｍｍ×７００ｍｍ
大に裁断した後に、洗面シンクを製造した。本発明の洗
面シンクは、安全衛生性や実用物性としての耐衝撃性や
耐溶剤性、及び破損した場合の安全性も問題なく、さら
には非常に美麗な水色の製品である。更にこの製品は非
常に安価に製造でき、使い捨て可能な製品であるので、
簡易型の洗面シンクとして使用でき、例えば工事現場で
使用したりする仮設タイプの洗面シンクとしても有用で
ある。The lighting cover of the present invention is a light blue product which has no problem in impact resistance and solvent resistance as practical physical properties and safety in case of breakage, and is very beautiful. Also,
This light blue polyester sheet is 500mm x 700mm
After cutting into large pieces, a sink was manufactured. The wash sink of the present invention is a product of light blue color with no problem in safety and hygiene, impact resistance and solvent resistance as practical physical properties, and safety in case of breakage. Furthermore, this product is very cheap to manufacture and is a disposable product,
It can be used as a simple type sink, and is also useful as a temporary type sink that is used at a construction site, for example.
【００５３】実施例５ エステル化反応槽で、ビス−β−ヒドロキシエチルテレ
フタレ−トオリゴマー１００部の存在下、テレフタル酸
８７部とエチレングリコール４２部とを常圧下２５０℃
で反応させてエステル化反応を行なった。反応開始４時
間後、エステル化率９７％のポリエステルオリゴマーを
得た。ついで本オリゴマーのうち１００部を重合槽に移
送し、正リン酸０．０１部と三酸化アンチモン０．０３
５部を添加し、減圧化、加熱し、温度を最終的に２８５
℃に昇温し、合計４時間重縮合の反応を行ない、極限粘
度が０．６６の原料ポリエステル（ｅ）を得た。Example 5 In an esterification reaction tank, 87 parts of terephthalic acid and 42 parts of ethylene glycol were added at 250 ° C. under atmospheric pressure in the presence of 100 parts of bis-β-hydroxyethyl terephthalate oligomer.
And an esterification reaction was carried out. Four hours after the start of the reaction, a polyester oligomer having an esterification rate of 97% was obtained. Then, 100 parts of this oligomer were transferred to a polymerization tank, and 0.01 part of orthophosphoric acid and 0.03 of antimony trioxide were transferred.
Add 5 parts, depressurize and heat to a final temperature of 285
The temperature was raised to 0 ° C., and polycondensation reaction was performed for a total of 4 hours to obtain a raw material polyester (e) having an intrinsic viscosity of 0.66.
【００５４】次いでこのポリエステル（ｅ）に、濃度が
５重量％になるように、ファーネス法により作成した、
凝集体の平均粒径が０．１３μｍのカーボンブラック
（品種：ＬＣＦ）粒子を二軸混練り押し出し機を用いて
溶融混練りし、カーボンブラック粒子配合ポリエステル
（Ｅ）を得た。次いで、得られた原料ポリエステル
（Ｅ）を真空下１６０℃で４時間乾燥後、樹脂温度２９
５℃にて、溶融押出しを行い、幅１．１ｍ、厚み３．０
ｍｍのポリエステルシートを得、更に耳部を裁断し１．
０ｍ幅のシートとした。評価結果を表−１に示す。Then, this polyester (e) was prepared by a furnace method so that the concentration became 5% by weight,
Carbon black (variety: LCF) particles having an average particle diameter of the aggregate of 0.13 μm were melt-kneaded using a biaxial kneading extruder to obtain carbon black particle-blended polyester (E). Then, the obtained raw material polyester (E) is dried under vacuum at 160 ° C. for 4 hours, and then the resin temperature is set to 29.
Melt extrusion at 5 ° C, width 1.1m, thickness 3.0
mm polyester sheet is obtained, and the ears are further cut.
The sheet was 0 m wide. Table 1 shows the evaluation results.
【００５５】また、この黒色のポリエステルシートを５
００ｍｍ×５００ｍｍ大に裁断した後に、絞り深さ２５
０ｍｍの真空成形を行なった。詳しくは、上部から見た
場合円になるように絞り成形した製品である。この成形
品を小物や道具の容器として使用した。かかる容器は、
実用物性としての耐衝撃性や耐溶剤性、及び破損した場
合の安全性も問題ない製品である。Also, this black polyester sheet is
After cutting to a size of 00 mm x 500 mm, the drawing depth is 25
Vacuum molding of 0 mm was performed. Specifically, it is a product formed by drawing so as to form a circle when viewed from above. This molded product was used as a container for small articles and tools. Such a container
The product has no problem in terms of practical physical properties such as impact resistance, solvent resistance, and safety in case of damage.
【００５６】比較例１ アクリル樹脂製の３．０ｍｍ厚みのシート、アクリライ
ト（三菱レイヨン製）を評価した。評価結果を表−１に
示す。得られたシートは、耐衝撃性に劣り、看板、屋根
板、カバー、洗面シンク、風呂場内装材等の用途には適
当でなかった。Comparative Example 1 Acrylite (manufactured by Mitsubishi Rayon), a 3.0 mm thick sheet made of acrylic resin, was evaluated. Table 1 shows the evaluation results. The obtained sheet was inferior in impact resistance and was not suitable for applications such as signboards, roof boards, covers, sinks, and bathroom interior materials.
【００５７】[0057]
【表１】 [Table 1]
【００５８】[0058]
【発明の効果】本発明の遮光性ポリエステルシートは、
優れた遮光性、耐衝撃性、安全性、耐溶剤性及び美麗で
かつ高級感のある外観を有するものである。該ポリエス
テルシートは、棚板、仕切板、壁板、腰板、屋根板、看
板、照明カバー、機械カバー、容器、医療用、洗面シン
ク、風呂場内装材等に使用され、その工業的価値は極め
て高い。The light-shielding polyester sheet of the present invention is
It has excellent light-shielding properties, impact resistance, safety, solvent resistance, and a beautiful and luxurious appearance. The polyester sheet is used for shelf boards, partition boards, wall boards, waist boards, roof boards, signboards, lighting covers, machine covers, containers, medical products, sinks, bathroom interior materials, etc., and its industrial value is extremely high. high.
Claims (9)
撃強度（ＦI ）が１０００Ｎ以上、高速衝撃強度の厚み
依存性値（ＦI ／ｔ）が５００Ｎ／ｍｍ以上、光線透過
率が１０％以下、かつ、不活性粒子が０．１〜２０重量
％配合されていることを特徴とする遮光性ポリエステル
シート。1. A thickness (t) of 0.5 to 30 mm, a high-speed impact strength (FI) of 1000 N or more, a thickness dependency value (FI / t) of the high-speed impact strength of 500 N / mm or more, and a light transmittance of 10. % Or less, and 0.1 to 20% by weight of inert particles are blended, a light-shielding polyester sheet.
ボンブラック粒子であることを特徴とする請求項１に記
載の遮光性ポリエステルシート。2. The light-shielding polyester sheet according to claim 1, wherein the inactive particles are titanium oxide particles or carbon black particles.
モル％以上がエチレンテレフタレート単位から成ること
を特徴とする請求項１又は２に記載の遮光性ポリエステ
ルシート。3. A polyester comprising 80 repeating structural units.
The light-shielding polyester sheet according to claim 1 or 2, wherein the mol% or more comprises ethylene terephthalate units.
リエステルシートからなる看板。4. A signboard made of the polyester sheet according to claim 1.
リエステルシートからなる仕切板、棚板、壁板、腰板又
は屋根板。5. A partition plate, a shelf plate, a wall plate, a waist plate or a roof plate made of the polyester sheet according to claim 1.
リエステルシートからなるカバー。6. A cover made of the polyester sheet according to claim 1.
リエステルシートからなる容器。7. A container comprising the polyester sheet according to claim 1.
リエステルシートからなる洗面シンク。8. A wash sink comprising the polyester sheet according to claim 1.
リエステルシートからなる風呂場内装材。9. A bathroom interior material comprising the polyester sheet according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154940A JPH091684A (en) | 1995-06-21 | 1995-06-21 | Light-shielding polyester sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154940A JPH091684A (en) | 1995-06-21 | 1995-06-21 | Light-shielding polyester sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH091684A true JPH091684A (en) | 1997-01-07 |
Family
ID=15595264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7154940A Withdrawn JPH091684A (en) | 1995-06-21 | 1995-06-21 | Light-shielding polyester sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH091684A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056871A (en) * | 2006-09-04 | 2008-03-13 | Toray Ind Inc | Shading polyester film |
| JP2009250800A (en) * | 2008-04-07 | 2009-10-29 | Keisuke Uchimoto | Gas sampling bag member and its manufacturing method |
| JP2010215893A (en) * | 2009-02-20 | 2010-09-30 | Mitsubishi Plastics Inc | Biaxially oriented polyester film |
-
1995
- 1995-06-21 JP JP7154940A patent/JPH091684A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056871A (en) * | 2006-09-04 | 2008-03-13 | Toray Ind Inc | Shading polyester film |
| JP2009250800A (en) * | 2008-04-07 | 2009-10-29 | Keisuke Uchimoto | Gas sampling bag member and its manufacturing method |
| JP2010215893A (en) * | 2009-02-20 | 2010-09-30 | Mitsubishi Plastics Inc | Biaxially oriented polyester film |
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| A761 | Written withdrawal of application |
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