发明授权
EP1919969B1 VERFAHREN ZUR HERSTELLUNG VON VINYLCHLORID-VINYLACETAT-MISCHPOLYMERISATEN IN FORM DEREN FESTHARZE
有权
VERFAHREN ZUR HERSTELLUNG VON VINYLCHLORID-VINYLACETAT-MISCHOLOLMERISATEN IN FORM DEREN FESTHARZE
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON VINYLCHLORID-VINYLACETAT-MISCHPOLYMERISATEN IN FORM DEREN FESTHARZE
- 专利标题（英）： Method for producing vinyl chloride-vinyl acetate copolymers in the form of their solid resins
- 专利标题（中）： VERFAHREN ZUR HERSTELLUNG VON VINYLCHLORID-VINYLACETAT-MISCHOLOLMERISATEN IN FORM DEREN FESTHARZE
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申请号： EP06792761.6申请日： 2006-08-09
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公开(公告)号： EP1919969B1公开(公告)日： 2008-12-24
- 发明人: KAISER, Stephan , STROHMEIER, Claudia , ZENK, Franz
- 申请人： Wacker Chemie AG
- 申请人地址： Hanns-Seidel-Platz 4 81737 München DE
- 专利权人： Wacker Chemie AG
- 当前专利权人： Wacker Chemie AG
- 当前专利权人地址： Hanns-Seidel-Platz 4 81737 München DE
- 代理机构： Schuderer, Michael
- 优先权： DE102005041593 20050901
- 国际公布： WO2007025847 20070308
- 主分类号： C08F214/06
- IPC分类号： C08F214/06 ; C08F259/04 ; C08F263/04
摘要：
The invention relates to a method for producing vinyl chloride-vinyl acetate copolymers in the form of their solid resins by means of radically initiated suspension polymerization in an aqueous medium consisting of 70 to 90 % by weight of vinyl chloride, 10 to 30 % by weight of vinyl acetate and optionally other comonomers that can be copolymerized therewith. The invention is characterized in that 0.1 to 5 % by weight of a vinyl acetate-vinyl chloride copolymer that is soluble in ethyl acetate are present, the indications in % by weight relating to the total weight of the comonomers.
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