发明授权
US4914137A Method for stabilizing polyurethane foam using an additive combination
of a phenothiazine and at least one co-stabilizer
失效
使用吩噻嗪和至少一种共稳定剂的添加剂组合来稳定聚氨酯泡沫的方法
- 专利标题： Method for stabilizing polyurethane foam using an additive combination of a phenothiazine and at least one co-stabilizer
- 专利标题（中）： 使用吩噻嗪和至少一种共稳定剂的添加剂组合来稳定聚氨酯泡沫的方法
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申请号： US231573申请日： 1988-08-11
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公开(公告)号： US4914137A公开(公告)日： 1990-04-03
- 发明人: Bernard C. Smith , Frank Powell , John F. Sierakowski
- 申请人： Bernard C. Smith , Frank Powell , John F. Sierakowski
- 申请人地址： CT Middlebury
- 专利权人： Uniroyal Chemical Company, Inc.
- 当前专利权人： Uniroyal Chemical Company, Inc.
- 当前专利权人地址： CT Middlebury
- 主分类号： C08K5/40
- IPC分类号： C08K5/40 ; C08K5/46 ; C08K5/47
摘要：
This invention relates to the stabilization of polyurethane foam by using a combination of a phenothiazine with at least a co-stabilizing effective amount of a compound selected from the group consisting of certain dithiocarbamates, thiuramsulfides, mercaptobenzothiazole, phosphites, phosphonites, phenolic antioxidants, pentaerythritol-tetrakis(beta-laurylthiopropionate), 4,4'-thiobis(2-t-butyl-5-methylphenol) and mixtures thereof.