发明授权
- 专利标题: Polyurethanes, articles and coatings prepared therefrom and methods of making the same
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申请号: US11638876申请日: 2006-12-14
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公开(公告)号: US09598527B2公开(公告)日: 2017-03-21
- 发明人: Thomas G. Rukavina , Robert Hunia , Yan Wang
- 申请人: Thomas G. Rukavina , Robert Hunia , Yan Wang
- 申请人地址: US OH Cleveland
- 专利权人: PPG Industries Ohio, Inc.
- 当前专利权人: PPG Industries Ohio, Inc.
- 当前专利权人地址: US OH Cleveland
- 代理商 Ann M. Cannoni
- 主分类号: C08G18/32
- IPC分类号: C08G18/32 ; C08G18/42 ; C08G18/44 ; C08G18/73 ; C08G18/75 ; C08G18/76 ; C08G18/79 ; C09D175/04 ; B32B27/40 ; B32B9/00 ; B32B27/12 ; B32B27/10 ; B32B27/08 ; B32B21/08 ; B32B15/08 ; B32B9/04 ; B32B11/04 ; B32B13/12
摘要:
The present invention provides polyurethanes including a reaction product of components including: (a) about 1 equivalent of at least one polyisocyanate; (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) about 0.1 to about 0.95 equivalents of at least one diol having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol and the reaction components are maintained at a temperature of at least about 100° C. for at least about 10 minutes, compositions, coatings and articles made therefrom and methods of making the same.
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