发明授权
- 专利标题： Product and a method of improving the shelf life of uncured polyester resins
- 专利标题（中）： 产品和改进固化聚酯树脂的寿命的方法
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申请号： US3553293D申请日： 1968-12-10
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公开(公告)号： US3553293A公开(公告)日： 1971-01-05
- 发明人: STAHLY ELDON E , LARD EDWIN W
- 申请人： GRACE W R & CO
- 专利权人： W R Grace and Co
- 当前专利权人： W R Grace and Co
- 优先权： US78270968 1968-12-10
- 主分类号： C08K5/08
- IPC分类号： C08K5/08 ; C08F21/02 ; C08F45/58
摘要：
DIHYDROXYNAPTHAQUINONES ARE ADDED TO UNCURED POLYESTER RESIN SYSTEMS TO PREVENT GELATION OF THOSE SYSTEMS WHEN THEY ARE STORED AT ROOM TEMPERATURE OR AT ELEVATED TEMPERATURES FOR PERIODS OF TIME IN EXCESS OF THREE YEARS. BETWEEN 0.5 AND 1.0 MOLE PERCENT OF THE DIHYDROXYNAPTHTAQUINONE IS ADDED TO THE UNCURED POLYESTER SYSTEMS.
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