发明申请
US20070112161A1 Low surface energy, ethylenically unsaturated polyisocyanate addition compounds and their use in coating compositions
审中-公开
低表面能,烯属不饱和多异氰酸酯加成化合物及其在涂料组合物中的应用
- 专利标题: Low surface energy, ethylenically unsaturated polyisocyanate addition compounds and their use in coating compositions
- 专利标题(中): 低表面能,烯属不饱和多异氰酸酯加成化合物及其在涂料组合物中的应用
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申请号: US11281232申请日: 2005-11-17
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公开(公告)号: US20070112161A1公开(公告)日: 2007-05-17
- 发明人: Richard Roesler , James Garrett , Aaron Lockhart , Carol Kinney
- 申请人: Richard Roesler , James Garrett , Aaron Lockhart , Carol Kinney
- 专利权人: Bayer MaterialScience LLC
- 当前专利权人: Bayer MaterialScience LLC
- 主分类号: C08G77/458
- IPC分类号: C08G77/458
摘要:
The present invention is directed to polyisocyanate addition compounds which i) are substantially free from isocyanate groups and are prepared from one or more a)polyisocyanate adducts containing isocyanurate, uretdione, biuret, allophanate, iminooxadiazine dione carbodiimide and/or oxadiazinetrione groups and/or b) NCO prepolymers, ii) contain urethane groups, iii) contain siloxane groups (calculated as SiO, MW 44) in an amount of 0.002 to 50% by weight, and iv) contain ethylenically unsaturated groups (calculated as C═C, MW 24) in an amount of 2 to 40% by weight, wherein the preceding percentages are based on the solids content of the polyisocyanate addition compounds and wherein the siloxane groups are incorporated by reacting an isocyanate group with a compound containing one or more hydroxyl groups directly attached to a carbon atom and one or more siloxane groups to form urethane groups and optionally allophanate groups, provided that more than 50 mole % of the groups that chemically incorporate siloxane groups into the polyisocyanate addition compounds are urethane groups. The present invention also relates to the use of the polyisocyanate addition compounds in coating compositions curable by free radical polymerization.