JPH0859928A - Styrenic polymer composition - Google Patents
Styrenic polymer compositionInfo
- Publication number
- JPH0859928A JPH0859928A JP19660894A JP19660894A JPH0859928A JP H0859928 A JPH0859928 A JP H0859928A JP 19660894 A JP19660894 A JP 19660894A JP 19660894 A JP19660894 A JP 19660894A JP H0859928 A JPH0859928 A JP H0859928A
- Authority
- JP
- Japan
- Prior art keywords
- styrene
- petroleum resin
- hydrogenated petroleum
- based polymer
- polymer
- 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.)
- Pending
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 title claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000003208 petroleum Substances 0.000 claims abstract description 27
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 98
- 238000005984 hydrogenation reaction Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000178 monomer Substances 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000002480 mineral oil Substances 0.000 description 5
- 235000010446 mineral oil Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 230000000379 polymerizing effect Effects 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 150000003505 terpenes Chemical class 0.000 description 3
- 235000007586 terpenes Nutrition 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NVZWEEGUWXZOKI-UHFFFAOYSA-N 1-ethenyl-2-methylbenzene Chemical compound CC1=CC=CC=C1C=C NVZWEEGUWXZOKI-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002794 monomerizing effect Effects 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はスチレン系重合体と水素
添加された石油樹脂からなるスチレン系重合体組成物に
関するものである。更に詳しくは、特定の単量体からな
る水素添加石油樹脂をスチレン系重合体に配合したこと
を特徴とする透明性、耐熱性、成形性、強度、剛性が高
度にバランスされたスチレン系重合体組成物に関するも
のである。FIELD OF THE INVENTION The present invention relates to a styrene polymer composition comprising a styrene polymer and a hydrogenated petroleum resin. More specifically, a styrene-based polymer having a highly balanced transparency, heat resistance, moldability, strength, and rigidity characterized by blending a styrene-based polymer with a hydrogenated petroleum resin containing a specific monomer. It relates to a composition.
【０００２】[0002]
【従来の技術及び課題】スチレン系重合体は、透明性、
成形性、剛性に優れているため熱可塑性成形材料として
以前より、一般雑貨、電化製品等に広く用いられてき
た。最近の傾向として成形体の大型化、薄肉化が進み、
強度向上と共に成形性の改良に関しても市場の要求が高
まっている。BACKGROUND OF THE INVENTION Styrene-based polymers are
Since it is excellent in moldability and rigidity, it has been widely used as a thermoplastic molding material for general sundries, electric appliances and the like. As a recent trend, the molded body has become larger and thinner,
Market demands are increasing with respect to strength improvement and moldability improvement.
【０００３】従来より、高強度のスチレン系重合体を得
るために該重合体の平均分子量を大きくしてきたが、平
均分子量を大きくすることにより成形性が低下する弊害
が生じる。そこで、成形性を補う目的で可塑剤を使用し
たが、可塑剤を添加することにより透明性、耐熱性、剛
性、強度が低下してしまい、結局、本来スチレン系重合
体が持ち合わせている透明性、耐熱性、剛性を維持しつ
つ強度と成形性を向上させることは非常に困難であっ
た。Conventionally, the average molecular weight of the polymer has been increased in order to obtain a high-strength styrene-based polymer, but the increase of the average molecular weight causes a problem of deterioration of moldability. Therefore, a plasticizer was used to supplement the moldability, but the transparency, heat resistance, rigidity, and strength were reduced by adding the plasticizer, and in the end, the transparency that the styrene-based polymer originally had It was very difficult to improve the strength and moldability while maintaining heat resistance and rigidity.
【０００４】また、特定の添加剤を添加することで成形
性を改良する方法が知られている。例えば、多価アルコ
ールと脂肪酸とのエステル（特開昭６１−２７５３４１
号）、高級脂肪酸とその金属塩（特開昭６２−１３２９
５１号）などが開示されているが、これら技術において
も成形性が改良されても耐熱性が低下するなど、まだま
だ一層の改良が必要であった。最近になって、炭素数５
の単量体を主とする石油樹脂あるいはテルペン系水素添
加樹脂をスチレン系重合体に配合する方法が開示された
（特開昭６２−２５１４４号、特開平４−３７０１３１
号）。この技術により、成形性、耐熱性、強度のバラン
スに優れたスチレン系重合体組成物が得られるが、スチ
レン系重合体が本来有する透明性が損なわれてしまい、
未だ透明性、耐熱性、剛性を維持しつつ強度と成形性を
向上させることは達成されていない。Further, a method of improving moldability by adding a specific additive is known. For example, an ester of a polyhydric alcohol and a fatty acid (Japanese Patent Application Laid-Open No. 61-275341).
No.), higher fatty acids and their metal salts (JP-A-62-1329).
No. 51) and the like are disclosed, but even in these technologies, even if the moldability is improved, the heat resistance is lowered, and further improvement is required. Recently, carbon number 5
A method of blending a styrene polymer with a petroleum resin or a terpene-based hydrogenated resin mainly containing the above monomer has been disclosed (JP-A-62-25144, JP-A-4-370131).
issue). By this technique, a styrene-based polymer composition having an excellent balance of moldability, heat resistance, and strength can be obtained, but the transparency originally possessed by the styrene-based polymer is impaired,
Improvement of strength and moldability while maintaining transparency, heat resistance and rigidity has not been achieved yet.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は上記従
来技術の欠点が改良されたスチレン系重合体組成物を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a styrenic polymer composition in which the above-mentioned drawbacks of the prior art are improved.
【０００６】[0006]
【課題を解決するための手段】本発明者らは鋭意検討を
重ねた結果、特定の単量体からなる水素添加石油樹脂を
スチレン系重合体に配合することにより、透明性、耐熱
性、剛性、強度、成形性が高度にバランスされたスチレ
ン系重合体組成物が得られることを見いだし、本発明を
完成するに至った。Means for Solving the Problems As a result of intensive studies made by the present inventors, by adding a hydrogenated petroleum resin composed of a specific monomer to a styrene-based polymer, transparency, heat resistance and rigidity can be improved. It was found that a styrene-based polymer composition having a highly balanced strength and moldability was obtained, and the present invention was completed.
【０００７】本発明でいうスチレン系重合体とはスチレ
ン、ｏ−メチルスチレン、ｐ−メチルスチレン、α−メ
チルスチレン等のスチレン系単量体単独又は混合物を重
合して得られる重合体、スチレン系単量体と共重合可能
な単量体例えば、アクリロニトリル、アクリル酸、アク
リル酸エステル、メタクリル酸、メタクリル酸エステ
ル、無水マレイン酸とのスチレン系共重合体、ゴム状弾
性体を分散粒子として含有する上記のスチレン系重合
体、スチレン系共重合体、及び上記のスチレン系重合
体、スチレン系共重合体とゴム状弾性体を混合した重合
体等である。The styrene-based polymer referred to in the present invention is a polymer obtained by polymerizing a styrene-based monomer such as styrene, o-methylstyrene, p-methylstyrene or α-methylstyrene, alone or in a mixture, and a styrene-based polymer. Monomers copolymerizable with the monomers, for example, acrylonitrile, acrylic acid, acrylic acid ester, methacrylic acid, methacrylic acid ester, styrene-based copolymer with maleic anhydride, containing rubber-like elastic body as dispersed particles The styrene-based polymer, the styrene-based copolymer, the styrene-based polymer, the polymer obtained by mixing the styrene-based copolymer and the rubber-like elastic material, and the like.
【０００８】スチレン系重合体の分子量は特に限定され
るものではないが１５００００〜５０００００、好まし
くは１８００００〜４５００００の範囲のスチレン系重
合体が好適に用いられる。この範囲より分子量が小さい
と、水素添加石油樹脂を配合しても強度向上の効果は小
さく、この範囲より高い分子量を有するスチレン系重合
体は成形性が悪くなり、又、スチレン系重合体そのもの
の生産性が低下し好ましくない。The molecular weight of the styrene-based polymer is not particularly limited, but a styrene-based polymer in the range of 150,000 to 500,000, preferably 180,000 to 450,000 is preferably used. When the molecular weight is smaller than this range, the effect of improving the strength is small even if hydrogenated petroleum resin is blended, the styrene-based polymer having a molecular weight higher than this range has poor moldability, and the styrene-based polymer itself has This is not preferable because it lowers productivity.
【０００９】本発明で用いうる水素添加石油樹脂とは主
にインデン、α−メチルスチレン、ビニルトルエン等の
炭素数８〜１０の単量体を重合した樹脂に既知の方法で
水素添加した樹脂であり、水素添加割合は１０〜１００
％が好ましい。この様な水素添加石油樹脂として、例え
ば荒川化学工業株式会社のアルコンＰ、アルコンＭ等を
用いることができる。The hydrogenated petroleum resin which can be used in the present invention is a resin obtained by polymerizing a monomer having 8 to 10 carbon atoms such as indene, α-methylstyrene and vinyltoluene by a known method. Yes, the hydrogenation rate is 10-100
% Is preferred. As such a hydrogenated petroleum resin, for example, Alcon P and Alcon M manufactured by Arakawa Chemical Industry Co., Ltd. can be used.
【００１０】水素添加石油樹脂の添加方法としては、ス
チレン系単量体、あるいはスチレン系単量体と共重合可
能な単量体混合物に溶解して重合するか、スチレン系重
合体、あるいはスチレン系共重合体の重合途中に水素添
加石油樹脂を溶融して、あるいは溶媒に溶解して添加す
るか、重合が終了し、未反応スチレン系単量体等を除去
する前、又は後に水素添加石油樹脂を添加する等の方法
を用いることができる。又、スチレン系重合体と水素添
加石油樹脂を混合し、押出機あるいは成形機等で混練す
ることが可能である。The hydrogenated petroleum resin may be added by dissolving in a styrene-based monomer or a monomer mixture copolymerizable with the styrene-based monomer and polymerizing, or by adding a styrene-based polymer or a styrene-based polymer. Hydrogenated petroleum resin is melted during the polymerization of the copolymer or added by dissolving it in a solvent, or before or after the polymerization is completed and unreacted styrene-based monomers are removed. Can be used. It is also possible to mix the styrene polymer and the hydrogenated petroleum resin and knead them with an extruder or a molding machine.
【００１１】スチレン系重合体と水素添加石油樹脂の割
合はスチレン系重合体１００重量部に対し水素添加石油
樹脂０．１〜３０重量部が好ましい。The ratio of the styrene polymer to the hydrogenated petroleum resin is preferably 0.1 to 30 parts by weight of the hydrogenated petroleum resin to 100 parts by weight of the styrene polymer.
【００１２】本発明のスチレン系重合体組成物は、従来
のスチレン系重合体で多用されていた各種添加剤、紫外
線吸収剤、酸化防止剤、滑剤、可塑剤、補強材、スリッ
プ剤、アンチブロッキング剤、核剤、架橋剤、帯電防止
剤、防曇剤、難燃剤、顔料、染料等を添加することもで
きる。The styrenic polymer composition of the present invention contains various additives, which are often used in conventional styrenic polymers, ultraviolet absorbers, antioxidants, lubricants, plasticizers, reinforcing materials, slip agents, antiblocking agents. Agents, nucleating agents, cross-linking agents, antistatic agents, antifogging agents, flame retardants, pigments, dyes and the like can also be added.
【００１３】[0013]
【作用】本発明で用いうる水素添加石油樹脂の水素添加
割合は１０〜１００％が好ましく、更に好ましくは２０
〜９０％である。１０％以下では成形時の熱により成形
体の変色をまねき好ましくない。The hydrogenation ratio of the hydrogenated petroleum resin usable in the present invention is preferably 10 to 100%, more preferably 20.
~ 90%. If it is less than 10%, the heat of molding may cause discoloration of the molded body, which is not preferable.
【００１４】スチレン系重合体と水素添加石油樹脂の割
合はスチレン系重合体１００重量部に対し水素添加石油
樹脂０．１〜３０重量部が好ましく、更に好ましくは１
〜１０重量部が好ましい。The ratio of the styrene-based polymer to the hydrogenated petroleum resin is preferably 0.1 to 30 parts by weight, more preferably 1 to 100 parts by weight of the styrene-based polymer.
-10 parts by weight is preferable.
【００１５】０．１重量部以下では添加による効果は望
めない。３０重量部以上では強度、耐熱性に劣り好まし
くない。If the amount is less than 0.1 parts by weight, the effect of addition cannot be expected. When the amount is 30 parts by weight or more, the strength and heat resistance are poor, which is not preferable.
【００１６】[0016]
【実施例】以下、実施例で更に詳しく説明する。本実験
で使用した樹脂を下に記した。◎ スチレン系重合体Ａ…一般用ポリスチレン；ＧＰＣで測
定した重量平均分子量は３３２、０００である。ミネラ
ルオイルは無添加 スチレン系重合体Ｂ…一般用ポリスチレン；ＧＰＣで測
定した重量平均分子量は３０８、０００である。ミネラ
ルオイルを２重量％含む。 スチレン系重合体Ｃ…一般用ポリスチレン；ＧＰＣで測
定した重量平均分子量は３０６、０００である。ミネラ
ルオイルを４重量％含む。 水素添加石油樹脂…アルコンＭ−１００（荒川化学工業
（株）製） テルペン系水素添加樹脂…クリアロンＰ（ヤスハラケミ
カル（株）製） 石油樹脂…ペトロジン＃１２０（三井石油化学（株）
製） 本実験における評価方法を下に記した。 引張強度・引張伸度…ＪＩＳ Ｋ−７１１３に準拠し
た。 曲げ強度・曲げ弾性率…ＪＩＳ Ｋ−７２０３に準拠し
た。 ＶＩＣＡＴ軟化点…ＪＩＳ Ｋ−７２０６に準拠した。 メルトインデックス…ＪＩＳ Ｋ−７２１０に準拠し
た。 曇り度（ヘーズ）…ＡＳＴＭ Ｄ １００３に準拠し
た。 実施例１〜４ スチレン系重合体Ａ１００重量部当たり水素添加石油樹
脂アルコンＭ−１００をそれぞれ２，４，１０，２０重
量部混合し、３０ｍｍΦの二軸押出機で造粒し、スチレ
ン系重合体組成物を得る。得られたスチレン系重合体組
成物の物性は、前記の方法により測定し、その結果を表
１に示した。本発明のスチレン系重合体組成物は、従来
使われていたミネラルオイルを含むスチレン系重合体組
成物よりも、強度、剛性を保持して透明性、耐熱性が改
良されており、しかも無添加のスチレン系重合体と比べ
て成形性が向上した。 比較例１ 水素添加石油樹脂を添加していないスチレン系重合体Ａ
は、透明性、耐熱性、強度、剛性に優れているが成形性
に劣っている。 比較例２、３ 水素添加石油樹脂の替わりにミネラルオイルをスチレン
系重合体−Ａに２，４重量部配合した場合、成形性は向
上するが透明性、耐熱性、強度、剛性が低下した。 比較例４ 水素添加石油樹脂の替わりにテルペン系水素添加樹脂を
スチレン系重合体Ａに２重量部配合した場合、透明性が
極端に低下した。 比較例５ 水素添加石油樹脂の替わりに炭素数８〜１０の単量体を
主とする石油樹脂をスチレン系重合体−Ａに２重量部配
合した場合、強度が低下した。EXAMPLES The present invention will be described in more detail below. The resins used in this experiment are listed below. ◎ Styrene-based polymer A ... General-purpose polystyrene; the weight average molecular weight measured by GPC is 332,000. Mineral oil is not added. Styrene-based polymer B ... General-purpose polystyrene; Weight average molecular weight measured by GPC is 308,000. Contains 2% by weight of mineral oil. Styrenic polymer C ... General-purpose polystyrene; the weight average molecular weight measured by GPC is 306,000. Contains 4% by weight of mineral oil. Hydrogenated petroleum resin ... Alcon M-100 (manufactured by Arakawa Chemical Industry Co., Ltd.) Terpene hydrogenated resin ... Clearon P (manufactured by Yasuhara Chemical Co., Ltd.) Petroleum resin ... Petrodin # 120 (Mitsui Petrochemical Co., Ltd.)
Manufacturing) The evaluation method in this experiment is described below. Tensile strength / tensile elongation ... Based on JIS K-7113. Bending strength / flexural modulus ... In accordance with JIS K-7203. VICAT softening point ... In conformity with JIS K-7206. Melt index: According to JIS K-7210. Haze (Haze) ... According to ASTM D 1003. Examples 1 to 4, 2,4,10,20 parts by weight of hydrogenated petroleum resin Alcon M-100 was mixed with 100 parts by weight of styrene polymer A, and the mixture was granulated by a twin-screw extruder having a diameter of 30 mm to obtain a styrene polymer. Obtain the composition. The physical properties of the obtained styrene polymer composition were measured by the methods described above, and the results are shown in Table 1. The styrene-based polymer composition of the present invention retains strength and rigidity and is improved in transparency and heat resistance as compared with the conventionally used styrene-based polymer composition containing mineral oil. The moldability was improved as compared with the styrene polymer. Comparative Example 1 Styrene-based polymer A containing no hydrogenated petroleum resin
Has excellent transparency, heat resistance, strength and rigidity, but is poor in moldability. Comparative Examples 2 and 3 When 2,4 parts by weight of mineral oil was blended with the styrene-based polymer-A instead of the hydrogenated petroleum resin, the moldability was improved, but the transparency, heat resistance, strength and rigidity were lowered. Comparative Example 4 When 2 parts by weight of a terpene-based hydrogenated resin was added to the styrene-based polymer A instead of the hydrogenated petroleum resin, the transparency was extremely lowered. Comparative Example 5 When 2 parts by weight of a styrene-based polymer-A was mixed with a petroleum resin mainly containing a monomer having 8 to 10 carbon atoms instead of the hydrogenated petroleum resin, the strength was lowered.
【００１７】[0017]
【表１】 [Table 1]
Claims (2)
〜１０の水素添加された石油樹脂を０．１〜３０重量部
を配合してなるスチレン系重合体組成物。1. A carbon number of 8 per 100 parts by weight of a styrene polymer.
A styrene-based polymer composition containing 0.1 to 30 parts by weight of hydrogenated petroleum resin of 10 to 10.
添加石油樹脂からなる請求項１記載の組成物。2. A composition according to claim 1, which comprises a hydrogenated petroleum resin having a hydrogenation ratio of 10 to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19660894A JPH0859928A (en) | 1994-08-22 | 1994-08-22 | Styrenic polymer composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19660894A JPH0859928A (en) | 1994-08-22 | 1994-08-22 | Styrenic polymer composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0859928A true JPH0859928A (en) | 1996-03-05 |
Family
ID=16360590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19660894A Pending JPH0859928A (en) | 1994-08-22 | 1994-08-22 | Styrenic polymer composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0859928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013530286A (en) * | 2010-06-30 | 2013-07-25 | ダウ グローバル テクノロジーズ エルエルシー | Polymer composition |
| JP2022116900A (en) * | 2021-01-29 | 2022-08-10 | 東洋スチレン株式会社 | Styrenic resin composition and molding |
-
1994
- 1994-08-22 JP JP19660894A patent/JPH0859928A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013530286A (en) * | 2010-06-30 | 2013-07-25 | ダウ グローバル テクノロジーズ エルエルシー | Polymer composition |
| JP2022116900A (en) * | 2021-01-29 | 2022-08-10 | 東洋スチレン株式会社 | Styrenic resin composition and molding |
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