Polyurethane prepolymer composition comprising a w

专利名称：Polyurethane prepolymer composition

comprising a water-immiscible solvent

发明人：Roberts,Gary,P. c/o Minnesota Min.&

Manufact. Co.

申请号：EP90314285.9申请日：19901224公开号：EP0460328A1公开日：19911211

专利附图：

摘要：A hydrophilic polyurethane prepolymer in a compatible, water-immisciblesolvent or water-immiscible solvent blend having a solids content of greater than about

10 and less than about 50 percent prepolymer in the solvent or solvent blend. Thiscomposition reacts with water at about a 1:1 ratio by volume to produce an excellent gelfor use in sealing water containing structures and soil stabilization. In the cure process,the compositions of the present invention expand less than 50%, and preferably less than30%.

申请人：MINNESOTA MINING AND MANUFACTURING COMPANY

地址：3M Center, P.O. Box 33427 St. Paul, Minnesota 55133-3427 US

国籍：US

代理机构：Baillie, Iain Cameron

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