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专利名称：Method of making water repellent
laminates
发明人：Marietta B. Helmeke申请号：US11438449申请日：20060522公开号：US07344619B2公开日：20080318
摘要：The invention relates to a method of making a water repellent laminateincluding applying a hot melt moisture cure adhesive to a primary substrate and bondingthe primary substrate with a secondary substrate that has been treated with a waterrepellent material prior to the lamination. The adhesive composition includes a hot meltmoisture cure polyurethane prepolymer formed from a polyol component and apolyisocyanate component. The polyol component includes a first polyether polyolhaving a number average molecular weight of from about 500 to about 8,000, a firstpolyester polyol having a melting point of less than about 40° C. or a second polyetherpolyol having a molecular weight of from about 200 to about 1,000, and a crystallinepolyester polyol having a melting point of from about 40° C. to about 120° C.
申请人：Marietta B. Helmeke
地址：Little Canada MN US
国籍：US
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