Methodof producing a polyurethane foam from a poly

专利名称：Methodof producing a polyurethane foam

from a polyol containing an unsaturatedpolyester and a polyisocyanate containing avinylidene monomer

发明人：Donald L. Marion申请号：US06/687412申请日：19841228公开号：US04581384A公开日：19860408

摘要：A method for producing polyester modified, polyurethane foam having adensity of from about 1 to 40 pounds per cubic foot, and the product produced by saidmethod, are disclosed and claimed. A first composition or mixture is prepared comprisinga relatively high molecular weight polyol, and a minor but effective amount of a hydroxy-containing, unsaturated polyester, soluble in or miscible with the polyol; a secondcomposition or mixture is prepared comprising an isocyanate or polyisocyanate soluble inor miscible with a vinylidene type cross- linking monomer for the unsaturated polyester,the cross-linking monomer being exemplified by styrene, said first and second mixturesbeing blended together just prior to production of the foam, thereby enabling theproduction of a more homogeneous foamed product having improved physical

properties, especially those enhancing the product's usefulness for insulation purposes.

申请人：ATLANTIC RICHFIELD COMPANY

代理人：Delbert E. McCaslin

更多信息请下载全文后查看