发明授权
- 专利标题: Process for preparing rubber-modified styrene resins
- 专利标题(中): 制备橡胶改性苯乙烯树脂的方法
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申请号: US82506申请日: 1993-06-25
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公开(公告)号: US5349012A公开(公告)日: 1994-09-20
- 发明人: Toshio Fujita , Masanari Fujita , Naoto Takeda , Koji Hirashima
- 申请人: Toshio Fujita , Masanari Fujita , Naoto Takeda , Koji Hirashima
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-49548 19900302; JPX2-248784 19900920
- 主分类号: C08F279/02
- IPC分类号: C08F279/02 ; C08F279/00 ; C08F291/02 ; C08F279/021
摘要:
Rubber-modified styrene resins with excellent impact resistance are prepared by formulating a feed from a styrene-based monomer, or a mixture thereof with comonomers and high-viscosity rubber, an organic peroxide, and, if necessary, all inert organic solvent, preheating and continuously supplying the feed to one end of a plug flow type reactor equipped with an agitator, performing the preliminary polymerization to a conversion sufficiently high for the transformation of the rubber in the feed into particles while controlling the weight average particle diameter of the rubber particles to 0.8 to 5 .mu.m, withdrawing the prepolymerized feed from the other end of the reactor, and supplying it to a following plug flow type reactor for continuous enhancement of tile conversion.
公开/授权文献
- USD408929S Panel 公开/授权日:1999-04-27