发明授权
- 专利标题： Polyurethane hotmelt adhesives with reactive acrylic copolymers
- 专利标题（中）： 聚氨酯热熔胶与反应性丙烯酸共聚物
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申请号： US937242申请日： 1997-09-08
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公开(公告)号： US5866656A公开(公告)日： 1999-02-02
- 发明人: Ju-Ming Hung , James W. Nowicki , George A. Hespe , Paul P. Puletti
- 申请人： Ju-Ming Hung , James W. Nowicki , George A. Hespe , Paul P. Puletti
- 申请人地址： DE Wilmington
- 专利权人： National Starch and Chemical Investment Holding Corporation
- 当前专利权人： National Starch and Chemical Investment Holding Corporation
- 当前专利权人地址： DE Wilmington
- 主分类号： C08F8/30
- IPC分类号： C08F8/30 ; C08G18/40 ; C08G18/62 ; C08J3/00 ; C08K3/00 ; C08L75/00
摘要：
A solvent-free one-part hot melt polyurethane adhesive or sealant composition which is solid at room temperature comprising 10 to 70% by weight of a urethane prepolymer having an isocyanate content of 0.25 to 15% and an isocyanate index greater than 1 and 30 to 90% by weight of an ethylenically unsaturated polymer having a number average molecular weight of 4,000 to 15,000 as determined by Gel Permeation Chromatography using a PL Gel,Mixed 10 micron column, a Shimadzu Model RID 6A Detector with a tetrahydrofuran carrier solvent at a flow rate of 1 milliliter per minute, the polymer containing sufficient hydroxyl functionality to provide an OH number of 5 to 15.
公开/授权文献
- US4215844A Valve actuator system 公开/授权日：1980-08-05
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