发明名称 |
Process for producing a urethane-modified polyisocyanurate foam |
摘要 |
A process for producing a urethane-modified polyisocyanurate foam by using at least four components of a polyol, a polyisocyanate compound in an excess amount relative to the polyol, an isocyanate trimerizing catalyst and a foaming agent, as the essential starting materials, wherein a polyester ether polyol comprising, as the constituting units, residues of polyhydric phenols and/or polyhydric alcohols, residues of polybasic carboxylic acids and oxyalkylene groups and having a hydroxyl value of from about 100 to about 500, is employed as at least a part of said polyol.
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申请公布号 |
US4647595(A) |
申请公布日期 |
1987.03.03 |
申请号 |
US19850788725 |
申请日期 |
1985.10.17 |
申请人 |
ASAHI GLASS COMPANY, LTD. |
发明人 |
KOZAWA, SHIGEYUKI;KUNII, NOBUAKI;MATSUMOTO, YUKIO |
分类号 |
C08G18/42;(IPC1-7):C08G18/14 |
主分类号 |
C08G18/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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