发明授权
US5900457A Aqueous polyurethane dispersions formed from polyisocyanates having a
methylene bridge
失效
由具有亚甲基桥的多异氰酸酯形成的水性聚氨酯分散体
- 专利标题： Aqueous polyurethane dispersions formed from polyisocyanates having a methylene bridge
- 专利标题（中）： 由具有亚甲基桥的多异氰酸酯形成的水性聚氨酯分散体
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申请号： US961752申请日： 1997-10-31
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公开(公告)号： US5900457A公开(公告)日： 1999-05-04
- 发明人: Youlu Duan , Douglas U. Gwost , Yi Wei , Yuduo Zhu , Sonja E. Stammler , Michael J. Maksymkiw
- 申请人： Youlu Duan , Douglas U. Gwost , Yi Wei , Yuduo Zhu , Sonja E. Stammler , Michael J. Maksymkiw
- 申请人地址： MN St. Paul
- 专利权人： H.B. Fuller Licensing & Financing, Inc.
- 当前专利权人： H.B. Fuller Licensing & Financing, Inc.
- 当前专利权人地址： MN St. Paul
- 主分类号： B32B7/12
- IPC分类号： B32B7/12 ; B32B27/32 ; B32B27/34 ; B32B27/36 ; C08G18/00 ; C08G18/08 ; C08G18/10 ; C08G18/12 ; C08G18/42 ; C08G18/46 ; C08G18/72 ; C08G18/75 ; C08G18/83 ; C09J11/06 ; C09J11/08 ; C09J131/04 ; C09J133/06 ; C09J167/00 ; C09J175/06 ; C08J3/00 ; C08K3/20 ; C08L75/00 ; B05D3/02
摘要：
The present invention is directed to aqueous polyurethane dispersions and aqueous polyurethane-acrylic dispersions, especially polymer dispersions formed from norbornane diisocyanate. The dispersions, and the dried polymers therefrom, are useful adhesives that provide enhanced bond strength when subjected to increased thermal and mechanical stress. Additionally, the inventive dispersions form polymers having increased adhesion compared to similar polymers based on cycloaliphatic diisocyanates which are free of a methylene bridge.
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