发明授权
- 专利标题: Method of making polyisocyanurate foam laminate
- 专利标题(中): 制备聚异氰脲酸酯泡沫层压板的方法
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申请号: US312584申请日: 1981-10-19
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公开(公告)号: US4362678A公开(公告)日: 1982-12-07
- 发明人: Michael J. Skowronski , Alberto DeLeon
- 申请人: Michael J. Skowronski , Alberto DeLeon
- 申请人地址: FL Tampa
- 专利权人: The Celotex Corporation
- 当前专利权人: The Celotex Corporation
- 当前专利权人地址: FL Tampa
- 主分类号: B32B27/40
- IPC分类号: B32B27/40 ; C08G18/09 ; C08G18/48 ; B32B3/26 ; B29D7/14 ; B32B5/20 ; B32B31/14
摘要:
A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.
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