发明公开
EP0080338A2 Polymerization of polyol (allyl carbonate) using polymerization initiators of short and long half lives
失效
使用低和高半衰期温度的聚合的多元醇（烯丙基碳酸酯）的聚合。
- 专利标题： Polymerization of polyol (allyl carbonate) using polymerization initiators of short and long half lives
- 专利标题（中）： 使用低和高半衰期温度的聚合的多元醇（烯丙基碳酸酯）的聚合。
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申请号： EP82306166.8申请日： 1982-11-19
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公开(公告)号： EP0080338A2公开(公告)日： 1983-06-01
- 发明人: Leatherman, Ivan Roger
- 申请人： PPG INDUSTRIES, INC.
- 申请人地址： One PPG Place Pittsburgh Pennsylvania 15272 US
- 专利权人： PPG INDUSTRIES, INC.
- 当前专利权人： PPG INDUSTRIES, INC.
- 当前专利权人地址： One PPG Place Pittsburgh Pennsylvania 15272 US
- 代理机构： Shipton, Gordon Owen
- 优先权： US322823 19811119
- 主分类号： C08F18/24
- IPC分类号： C08F18/24 ; C08F4/38
摘要：
A liquid composition comprising a polyol(allyl carbonate), a photochromic agent, and a first peroxide polymerization initiator characterized in that a second peroxide polymerization initiator is present, the second initiator having a half life at least five times greater than the first, measured atthe same temperature, in polyol(allyl carbonate) and a method of polymerizing a polyol(allyl carbonate) having a photochromic agent incorporated therein by adding a first peroxide polymerization initiator to the polyol(allyl carbonate) monomer and curing the polyol(allyl carbonate), characterised in that a second peroxide polymerization initiator is added to the polyol(allyl carbonate), the second initiator having a half life at least five times greaterthan the first, measured at the same temperature, in polyol(allyl carbonate).
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