JPH05170996A - Flame-retardant acrylic resin composition - Google Patents
Flame-retardant acrylic resin compositionInfo
- Publication number
- JPH05170996A JPH05170996A JP34081991A JP34081991A JPH05170996A JP H05170996 A JPH05170996 A JP H05170996A JP 34081991 A JP34081991 A JP 34081991A JP 34081991 A JP34081991 A JP 34081991A JP H05170996 A JPH05170996 A JP H05170996A
- Authority
- JP
- Japan
- Prior art keywords
- acrylic resin
- flame
- resin composition
- retardant
- retardant acrylic
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
(57)【要約】
【目的】 アクリル系樹脂組成物において、難燃性が高
く、しかも、機械的強度の低下、軟化点の低下がなく、
又、着色もないものを提供する。
【構成】 アクリル系樹脂及び下記一般式で表わされる
ポリホスフェート化合物からなる難燃性アクリル系樹脂
組成物。
式中Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 及びｎは以下の通り。
(57) [Summary] [Purpose] An acrylic resin composition has high flame retardancy, and has no decrease in mechanical strength or softening point.
Moreover, the thing without coloring is also provided. A flame-retardant acrylic resin composition comprising an acrylic resin and a polyphosphate compound represented by the following general formula. In the formula, R 1 , R 2 , R 3 , R 4 and n are as follows.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、難燃性能に優れたアク
リル系樹脂組成物に関する。詳しくはアクリル系樹脂に
ポリホスフェート化合物を配合した難燃性組成物に関す
る。FIELD OF THE INVENTION The present invention relates to an acrylic resin composition having excellent flame retardancy. Specifically, it relates to a flame-retardant composition in which a polyphosphate compound is mixed with an acrylic resin.
【０００２】[0002]
【従来の技術】アクリル系樹脂は、その優れた光学物
性、機械物性、耐水性、耐薬品性及び電気絶縁性が優
れ、その上成形加工が容易であるため、建築材料、電気
機器用材料、自動車用材料及び雑貨等として広範囲に使
用されている。しかし、アクリル系樹脂は、合成樹脂の
なかでも比較的燃焼しやすいという欠点がある。この
為、アクリル系樹脂でも他の可燃性樹脂と同様に、難燃
化するため難燃剤を添加する方法が提案されている。例
えば、ポリマーの難燃化−その化学と実際技術−＜増補
新版＞昭和62年 2月28日（株）大成社発行には、アクリ
ル系樹脂の難燃剤として、有機塩素化合物やホスフェー
トエステル，トリクレジルホスフェートのごとき有機リ
ン系化合物、が記載されている。Acrylic resins are excellent in optical properties, mechanical properties, water resistance, chemical resistance and electrical insulation properties and, in addition, they are easy to mold and process. Widely used as automobile materials and sundries. However, acrylic resins have a drawback that they are relatively easy to burn among synthetic resins. For this reason, a method has been proposed in which an acrylic resin is added with a flame retardant to make it flame-retardant, like other combustible resins. For example, flame retardation of polymers-Chemistry and actual technology- <Enlarged new edition> Published by Taiseisha Co., Ltd. on February 28, 1987, was published as a flame retardant for acrylic resins, such as organic chlorine compounds, phosphate esters, triester Organic phosphorous compounds such as cresyl phosphate are described.
【０００３】[0003]
【発明が解決しようとする課題】アクリル系樹脂は、比
較的燃焼性が高いことから、難燃剤を多く要し、その種
類によつては、樹脂の機器的強度や軟化点を低下させた
り、成形時に、該化合物が分解して、樹脂が着色するな
どアクリル系樹脂が有する光透過性に代表される優れた
諸特性を失い易い。従って、他の樹脂に有効な難燃剤が
必ずしも適しておらず、アクリル系樹脂に合った難燃剤
が望まれている。Acrylic resins, which have a relatively high flammability, require a large amount of flame retardant, and depending on the type, decrease the mechanical strength and softening point of the resin, At the time of molding, the compound is decomposed and the resin is easily colored, and thus various excellent properties represented by the acrylic resin such as light transmittance are easily lost. Therefore, effective flame retardants for other resins are not always suitable, and flame retardants suitable for acrylic resins are desired.
【０００４】[0004]
【課題を解決するための手段】本発明は、アクリル系樹
脂及び下記〔化２〕式で表わされるポリホスフェート化
合物から成る難燃性アクリル系樹脂組成物を提供するも
のである。The present invention provides a flame-retardant acrylic resin composition comprising an acrylic resin and a polyphosphate compound represented by the following formula (2).
【０００５】[0005]
【化２】 [Chemical 2]
【０００６】式中Ｒ1 ，Ｒ2 ，Ｒ3 及びＲ4 は下記〔外
２〕で示されるものの１つである。In the formula, R 1 , R 2 , R 3 and R 4 are one of those shown in the following [External 2].
【外２】 [Outside 2]
【０００７】本発明におけるアクリル系樹脂としては、
周知のメタクリル酸メチルを主体とした重合体であり、
共重合成分として（メタ）アクリル酸エステル、（メ
タ）アクリル酸、スチレン、αーメチルスチレン、アク
リロニトリル、無水マレイン酸、無水グルタル酸、グル
タルイミド等があり、これらの二元、三元、四元の共重
合体、あるいはアクリルゴム、ブタジエンゴム等のエラ
ストマーで強化したものが該当する。As the acrylic resin in the present invention,
It is a well-known polymer mainly composed of methyl methacrylate,
As the copolymerization component, there are (meth) acrylic acid ester, (meth) acrylic acid, styrene, α-methylstyrene, acrylonitrile, maleic anhydride, glutaric anhydride, glutarimide, and the like. Those reinforced with polymers or elastomers such as acrylic rubber and butadiene rubber are applicable.
【０００８】本発明のポリホスフェート化合物は、ポリ
ホスフェート化合物を製造する公知の方法、例えば、特
開昭６３−２２７６３２号公報に記載の方法があり、レ
ゾルシン、ヒドロキノン、カテコールのこどき、ジヒド
ロキシベンゼン類とオキシ塩化リンを反応させた後、式
中のＲ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 を構成するフェノール類を
反応させることによって、製造できる。The polyphosphate compound of the present invention includes a known method for producing a polyphosphate compound, for example, the method described in JP-A No. 63-227632, and resorcinol, hydroquinone, catechol, dihydroxybenzenes. And phosphorus oxychloride are reacted with each other, and then phenols constituting R 1 , R 2 , R 3 and R 4 in the formula are reacted with each other to produce the compound.
【０００９】Ｒ1 ，Ｒ2 ，Ｒ3 ，Ｒ4 は、同種でも異種
でもよい。繰り返し単位ｎは１〜５、好ましくは、１〜
３である。ｎがあまり大きいと、粘度が高くなり、また
樹脂組成物の物性に悪影響がある。R 1 , R 2 , R 3 and R 4 may be the same or different. Repeating unit n is 1 to 5, preferably 1 to
It is 3. If n is too large, the viscosity becomes high and the physical properties of the resin composition are adversely affected.
【００１０】ポリホスフェート化合物の含有量は、全組
成物に対して、０．５〜４０重量％、好ましくは１〜１
５重量％である。これより少ない場合は、充分な難燃効
果が得られず、また含有量がこれより多いと、アクリル
系樹脂組成物の物性、特に強度が低下する。The content of the polyphosphate compound is 0.5 to 40% by weight, preferably 1 to 1 based on the total composition.
It is 5% by weight. If it is less than this range, a sufficient flame retardant effect cannot be obtained, and if the content is more than this range, the physical properties of the acrylic resin composition, particularly the strength, are reduced.
【００１１】本発明の難燃性アクリル系樹脂組成物は、
アクリル系樹脂製造の際に、通常使用される公知の酸化
防止剤、滑剤、着色剤、耐候剤等を含有させてもよい。The flame-retardant acrylic resin composition of the present invention comprises
At the time of producing the acrylic resin, known antioxidants, lubricants, colorants, weathering agents and the like which are usually used may be added.
【００１２】本発明の難燃性アクリル系樹脂組成物は、
所定成分をヘンシェルミキサー、タブラー等で機械的に
混合し、バンバリーミキサーや１軸、２軸の押出機で溶
融混練する方法で混合できる。この様にして得られた組
成物は射出成形や押出成形により、製品に賦形すること
ができる。また、アクリル系樹脂のその単量体又はシラ
ップに（１）式で示すホスフェート化合物を混合、分散
させ、これを重合ささてもよい。この重合を鋳型のなか
で行う注型重合によれば、成形した組成物が得られる。The flame-retardant acrylic resin composition of the present invention comprises
The predetermined components can be mechanically mixed by a Henschel mixer, a tabler or the like, and melt-kneaded by a Banbury mixer or a single-screw or twin-screw extruder. The composition thus obtained can be shaped into a product by injection molding or extrusion molding. Further, the phosphate compound represented by the formula (1) may be mixed and dispersed in the monomer or syrup of the acrylic resin and polymerized. Cast polymerization, which is carried out in a mold, gives a shaped composition.
【００１３】[0013]
【発明の効果】本発明の難燃性アクリル系樹脂組成物
は、本来アクリル系樹脂が有している光学、機械物性を
維持したまま優れた難燃性を有している。これにより難
燃性の要求される電子電気部品、ＯＡ機器部品、自動車
部品、建築材料、看板、グレージング材料等の用途に有
用である。The flame-retardant acrylic resin composition of the present invention has excellent flame retardancy while maintaining the optical and mechanical properties that the acrylic resin originally has. This is useful for applications such as electronic and electrical parts, OA equipment parts, automobile parts, building materials, signboards, and glazing materials that require flame retardancy.
【００１４】[0014]
【実施例】実施例に用いた難燃剤は、以下の通りであ
る。 ・難燃剤Ａ：フェニル・クレジルハイドロキノンポリホ
スフェート ・難燃剤Ｂ：テトラビフェニル・ハイドロキノンポリホ
スフェート ・難燃剤Ｃ：トリフェニルホスフェート ・難燃剤Ｄ：トリクレジルホスフェートEXAMPLES The flame retardants used in the examples are as follows. -Flame retardant A: Phenyl cresyl hydroquinone polyphosphate-Flame retardant B: Tetrabiphenyl hydroquinone polyphosphate-Flame retardant C: Triphenyl phosphate-Flame retardant D: Tricresyl phosphate
【００１５】評価方法は、以下のとおりである。 ・難燃性：ＵＬ９４ＨＢ（ＪＩＳ Ｋ６９１１Ｃ）燃焼
試験法に準拠し、スガ試験機製ＵＬー９４ＨＢ型燃焼性
試験器を用いて、燃焼速度で評価した。 ・熱変形温度：ＡＳＴＭ−Ｄ６４８に準拠し、安田精機
社製１４８ーＨＤＲヒートディストーションテスタを用
いて、測定した。 ・着色：ＪＩＳ−Ｋ７１０３に準拠し、厚み３mm縦横共
に５cmの板状試料を日本電色工業社製ＳＺ−Σ８０分光
式色差計を用い、黄色度（ＹＩ）を測定した。 ・ブリード性：上記板状試料を２３℃５０％ＲＭ恒温室
で１０日間放置後の表面状態を目視でブリードの有無を
観察した。無いものは○、有るものは×とした。The evaluation method is as follows. Flame retardance: Based on the UL94HB (JIS K6911C) combustion test method, a UL-94HB type flammability tester manufactured by Suga Test Instruments was used to evaluate the burning rate. -Heat distortion temperature: Measured using a 148-HDR heat distortion tester manufactured by Yasuda Seiki Co., Ltd. according to ASTM-D648. -Coloring: According to JIS-K7103, a plate-like sample having a thickness of 3 mm and a length of 5 cm in both length and width was measured for yellowness (YI) using an SZ-Σ80 spectroscopic color difference meter manufactured by Nippon Denshoku Industries Co., Ltd. Bleedability: The presence or absence of bleeding was observed by visually observing the surface state of the plate-shaped sample after leaving it in a constant temperature room of 23 ° C. and 50% RM for 10 days. Those that did not exist were marked with ◯, and those that existed were marked with x.
【００１６】実施例１〜１０ メタクリル樹脂（スミペックスＥｘ住友化学工業（株）
製）と、表１に示す難燃剤及びその量とをミキサーにて
ブレンド後、Ｔダイ付き４０mm押出機（田辺プラスチッ
ク社製）にて、２５０℃の温度で平板押出を行い、１０
０℃前後の３本のポリシングロールを経由して、３mm厚
の押出板を得た。この押出板を評価した。その結果を表
１に示す。Examples 1 to 10 Methacrylic resin (SUMIPEX Ex Sumitomo Chemical Co., Ltd.)
And a flame retardant and their amounts shown in Table 1 were blended in a mixer, and then flat-plate extruded at a temperature of 250 ° C. by a 40 mm extruder with a T-die (manufactured by Tanabe Plastic Co., Ltd.).
An extruded plate having a thickness of 3 mm was obtained via three polishing rolls at about 0 ° C. This extruded plate was evaluated. The results are shown in Table 1.
【００１７】[0017]
【表１】 [Table 1]
【００１８】比較例１〜９ 表２に示す難燃剤及びその量とした以外は実施例１と同
様に行った。その結果を表２に示す。Comparative Examples 1 to 9 The same procedure as in Example 1 was carried out except that the flame retardant and its amount shown in Table 2 were used. The results are shown in Table 2.
【００１９】[0019]
【表２】 [Table 2]
Claims (1)
されるポリホスフェート化合物から成る難燃性アクリル
系樹脂組成物。 【化１】 式中Ｒ1 ，Ｒ2 ，Ｒ3 及びＲ4 は下記〔外１〕で示され
るものの１つである。 【外１】 1. A flame-retardant acrylic resin composition comprising an acrylic resin and a polyphosphate compound represented by the following [Chemical formula 1]. [Chemical 1] In the formula, R 1 , R 2 , R 3 and R 4 are ones shown in [External 1] below. [Outer 1]
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34081991A JP3254706B2 (en) | 1991-12-24 | 1991-12-24 | Flame retardant acrylic resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34081991A JP3254706B2 (en) | 1991-12-24 | 1991-12-24 | Flame retardant acrylic resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05170996A true JPH05170996A (en) | 1993-07-09 |
| JP3254706B2 JP3254706B2 (en) | 2002-02-12 |
Family
ID=18340590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34081991A Expired - Lifetime JP3254706B2 (en) | 1991-12-24 | 1991-12-24 | Flame retardant acrylic resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3254706B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837760A (en) * | 1994-03-16 | 1998-11-17 | Elastogran Gmbh | Self-extinguishing thermoplastic polyurethanes and their preparation |
| KR100758656B1 (en) * | 2006-05-19 | 2007-09-13 | 장학섭 | Flame retardant and flame retardant acrylic sheet and method of manufacturing the same |
| US10138355B2 (en) | 2015-01-23 | 2018-11-27 | Teijin Limited | Flame-retardant resin composition and molded article produced from same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2089374T3 (en) | 1991-10-25 | 1996-10-01 | Dsm Nv | FIREPROOF POLYMER COMPOSITION. |
-
1991
- 1991-12-24 JP JP34081991A patent/JP3254706B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837760A (en) * | 1994-03-16 | 1998-11-17 | Elastogran Gmbh | Self-extinguishing thermoplastic polyurethanes and their preparation |
| KR100758656B1 (en) * | 2006-05-19 | 2007-09-13 | 장학섭 | Flame retardant and flame retardant acrylic sheet and method of manufacturing the same |
| US10138355B2 (en) | 2015-01-23 | 2018-11-27 | Teijin Limited | Flame-retardant resin composition and molded article produced from same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3254706B2 (en) | 2002-02-12 |
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