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Composition comprising a copolymer comprising methyl methacrylate, (METH)acrylic acid and styrene monomers

A technology of methyl methacrylate and methacrylic acid, which is applied in the field of polymer compositions and can solve problems such as unfavorable molding or injection molding conditions and the influence of melt flow index

Pending Publication Date: 2020-03-24
TRINSEO EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] If these compositions allow improved properties such as heat resistance and scratch resistance, the melt flow index is greatly affected and is not conducive to molding or injection molding conditions in the molten state

Method used

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  • Composition comprising a copolymer comprising methyl methacrylate, (METH)acrylic acid and styrene monomers
  • Composition comprising a copolymer comprising methyl methacrylate, (METH)acrylic acid and styrene monomers

Examples

Experimental program
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Embodiment 1

[0096] Example 1: According to document EP0774471 Example 4, by using a mixture comprising 95.5% by weight of methyl methacrylate, 4.5% by weight of methacrylic acid and 7% by weight of styrene (these three parts) and 0.26 parts by weight of chain regulator, 0.005 parts by weight of DTDDS and 0.225 parts by weight of tert-butyl peroxy-2-ethylhexanoate (Luperox® 26 from Arkema) as the final ingredients, by suspension polymerization Copolymer COPO1 was prepared.

Embodiment 2

[0097] Example 2: Copolymer COPO2, by suspension polymerization according to document EP0774471 Example 4, using a composition comprising 88.5% by weight of methyl methacrylate (MMA), 4.5% by weight of methacrylic acid (AMA) and 7% of styrene (STY) (the total of these three monomers accounts for 100 parts by weight), and 0.26 parts by weight of chain regulator, 0.005 parts by weight of DTDDS and 0.225 parts by weight of tert-butyl peroxy-2-ethylhexanoate as the final component A mixture of base esters (Luperox® 26 from Arkema) was prepared.

[0098] Table 1 - Comparison of flowability and Vicat properties of compositions COPO1 and COPO2

[0099] MMA STY AMAs MFI (g / 10min) Vicat temperature °C COPO1 95.5 0 4.5 2 121 COPO2 88.5 7 4.5 5.2 117

[0100] Although it was noted that there was a slight drop in Vicat temperature due to the presence of styrene in COPO2, on the other hand, the melt flow index was greatly increased, which showed ...

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Abstract

Composition comprising a copolymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers. The present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers. In particular, the present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers, said composition having particularly advantageous compromises of heat-resistant, fluidity, scratch-resistant and chemical-resistant properties. The present invention also relatesto a moulded or extruded object comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers and the use of these objects.

Description

[0001] field of invention [0002] The present invention relates to a polymer composition comprising a polymer comprising monomers of methyl methacrylate, (meth)acrylic acid and styrene. [0003] In particular, the present invention relates to a polymer composition comprising a polymer comprising monomers of methyl methacrylate, (meth)acrylic acid and styrene, the composition having heat resistance, flowing A particularly favorable compromise of durability, scratch resistance and chemical resistance. [0004] The invention also relates to molded or extruded articles comprising polymers comprising monomers of methyl methacrylate, (meth)acrylic acid and styrene, and to the use of these articles. [0005] technical problem [0006] Thermoplastic polymers and copolymers, especially (meth)acrylic polymers and copolymers, have excellent transparency characteristics, excellent mechanical and processing properties, and are widely used in various fields such as automotive parts, electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08J5/18
CPCC08F220/14C08F2438/02C08F212/08C08F220/06C08L33/12C08F2500/12B29C45/0001C08F2800/20C08L25/14C08L2201/08
Inventor C.勒克龙
Owner TRINSEO EURO GMBH
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