发明授权
US4997900A Powder coating comprising acetone oxime blocked diisocyanate and
polyester
失效
包含丙酮肟封端二异氰酸酯和聚酯的粉末涂料
- 专利标题： Powder coating comprising acetone oxime blocked diisocyanate and polyester
- 专利标题（中）： 包含丙酮肟封端二异氰酸酯和聚酯的粉末涂料
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申请号： US290157申请日： 1988-12-27
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公开(公告)号： US4997900A公开(公告)日： 1991-03-05
- 发明人: Larry F. Brinkman
- 申请人： Larry F. Brinkman
- 申请人地址： MN Minneapolis
- 专利权人： Cargill, Incorporated
- 当前专利权人： Cargill, Incorporated
- 当前专利权人地址： MN Minneapolis
- 主分类号： C08G18/28
- IPC分类号： C08G18/28 ; C08G18/76 ; C08G18/80 ; C09D5/03 ; C09D5/46 ; C09D175/00 ; C09J175/00
摘要：
In accordance with the present invention, a blocked isocyanate composition which is useful as a curing agent for powder coatings is prepared from the reaction of tetramethylxylene diisocyanate and acetone oxime. In a preferred embodiment, a polyol is reacted with the isocyanate to provide a prepolymer with urethane linkages wherein the isocyanate groups of the prepolymer are substantially blocked with acetone oxime. The blocked isocyanate composition of the present invention can be used as a curing agent for powder coatings, adhesives and high solid coatings which are cured by baking. The blocked isocyanate composition of the invention can be used as a cross-linking agent for a hydroxy-containing polyester, a hydroxy-containing acrylic or methacrylic polymer or any other active hydrogen containing polymer.
公开/授权文献
- US4410517A Vitamin E (tocopherol) compositions which resemble petrolatum 公开/授权日：1983-10-18
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