发明授权
- 专利标题： Method of impregnating
- 专利标题（中）： 浸渍方法
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申请号： US83760申请日： 1987-08-10
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公开(公告)号： US4810536A公开(公告)日： 1989-03-07
- 发明人: Bernhard Jansen , Hanns P. Muller , Roland Richter , Dietmar Schapel , Rudolf Schmidt
- 申请人： Bernhard Jansen , Hanns P. Muller , Roland Richter , Dietmar Schapel , Rudolf Schmidt
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3629061 19860827
- 主分类号： C04B41/48
- IPC分类号： C04B41/48 ; C04B41/49 ; C04B41/63 ; C04B41/64 ; C08G18/10 ; C08G18/30 ; C08G18/61 ; C08G18/73 ; C08G18/75 ; C08G18/78 ; B05D1/02
摘要：
Impregnating agents are provided consisting essentially of(a) an NCO-prepolymer or NCO-semi-prepolymer which is curable by atmospheric moisture, with an NCO content of 2 to 25% by weight, based on(a1) an organic polyisocyanate and(a2) a compound with at least 2 alcohol hydroxyl groups,(b) a solvent which is inert with respect to isocyanate groups in which the (a1) organic polyisocyanate is a polyisocyanate with exclusively aliphatically or cycloaliphatically bound isocyanate groups and the (a2) polyhydroxyl compound is a polysiloxane of the molecular weight range of 300 to 5000 which has at least 2 alcoholically bound hydroxyl groups.A method of impregnating mineral substrates with such impregnating agents is also provided.
公开/授权文献
- USD399873S Pen 公开/授权日：1998-10-20
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