发明授权
US4390644A Isocyanurate foams using a sulfonium zwitterion/metal carbonylate
mixture as catalyst
失效
异硫氰酸酯泡沫使用锍两性离子/金属羰基化物混合物作为催化剂
- 专利标题: Isocyanurate foams using a sulfonium zwitterion/metal carbonylate mixture as catalyst
- 专利标题(中): 异硫氰酸酯泡沫使用锍两性离子/金属羰基化物混合物作为催化剂
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申请号: US264503申请日: 1981-05-18
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公开(公告)号: US4390644A公开(公告)日: 1983-06-28
- 发明人: Donald H. Clarke , George J. Pomranky , Donald L. Schmidt
- 申请人: Donald H. Clarke , George J. Pomranky , Donald L. Schmidt
- 申请人地址: MI Midland
- 专利权人: The Dow Chemical Company
- 当前专利权人: The Dow Chemical Company
- 当前专利权人地址: MI Midland
- 主分类号: C08G18/16
- IPC分类号: C08G18/16 ; C08G18/14 ; C08G18/58 ; C08G18/65
摘要:
Stable isocyanurate foams are produced at rapid reaction rates by contacting an organic polyisocyanate with an active hydrogen compound such as a polyether polyol in the presence of an initiator comprising an ortho-sulfonium phenoxide and a carbonylate salt such as sodium acetate.
公开/授权文献
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