发明公开
EP2619245A1 PROCESS FOR PREPARING RESIN-LINEAR ORGANOSILOXANE BLOCK COPOLYMERS
有权
一种用于处理线状树脂ORGANOSILOXANBLOCKCOPOLYMEREN的
- 专利标题： PROCESS FOR PREPARING RESIN-LINEAR ORGANOSILOXANE BLOCK COPOLYMERS
- 专利标题（中）： 一种用于处理线状树脂ORGANOSILOXANBLOCKCOPOLYMEREN的
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申请号： EP11761801.7申请日： 2011-09-21
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公开(公告)号： EP2619245A1公开(公告)日： 2013-07-31
- 发明人: HORSTMAN, John, Bernard , SWIER, Steven
- 申请人： Dow Corning Corporation
- 申请人地址： 2200 West Salzburg Road Midland, Michigan 48686-0994 US
- 专利权人： Dow Corning Corporation
- 当前专利权人： Dow Corning Corporation
- 当前专利权人地址： 2200 West Salzburg Road Midland, Michigan 48686-0994 US
- 代理机构： Thomson, James B.
- 优先权： US385446P 20100922; US201161537146P 20110921; US201161537151P 20110921
- 国际公布： WO2012040302 20120329
- 主分类号： C08G77/14
- IPC分类号： C08G77/14 ; C08G77/26 ; C08G77/48 ; C08G77/54 ; H01L23/29 ; H01L33/56 ; H01L21/67
摘要：
A process is disclosed for preparing a resin-linear organosiloxane block copolymer by reacting in a first step an endcapped linear organosiloxane and an organosiloxane resin to form a resin-linear organosiloxane block copolymer. The resulting resin-linear organosiloxane block copolymer is then crosslinked in a second step to sufficiently increase the average molecular weight of the resin-linear organosiloxane block copolymer by at least 50%. The resin-linear organosiloxanes block copolymers prepared by the disclosed process may provide optically solid compositions which may be considered as "reprocessable".
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