发明名称 |
Thermoplastic transparent resin |
摘要 |
A thermoplastic transparent resin is produced by hydrogenating terminal double bonds and 70% or more of aromatic double bonds of a copolymer which is produced by polymerizing a monomer composition essentially consisting of at least one (meth)acrylic ester monomer and styrene and has a molar ratio (A/B) of from 1 to 4 wherein A is the molar amount of a constitutional unit derived from the (meth)acrylic ester monomer and B is the molar amount of a constitutional unit derived from styrene. The (meth)acrylic ester monomer is acryl methacrylate or a combination of alkyl methacrylate and alkyl acrylate. The thermoplastic transparent resin is suitable for the production of a molded article such as optical article having a good color tone because molding defects occur rarely. |
申请公布号 |
EP2813522(A1) |
申请公布日期 |
2014.12.17 |
申请号 |
EP20140184614 |
申请日期 |
2005.05.31 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
SAEGUSA, NOBUYA;KUWAHARA, SHOJIRO |
分类号 |
C08F8/04;B29C47/06;C08F212/08;C08F220/12;C08F220/14;C08F220/18;C08J5/18;G02B3/00;G02B6/00;G02B6/122;G11B7/24 |
主分类号 |
C08F8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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