发明名称 Process for controlling the density, conformation and composition of the hydrophilic layer of a polyurethane composite
摘要 A process of making a foam composite of desired pore size and conformation is provided. An emulsion of a hydrophilic polyurethane prepolymer which upon curing forms a substantially open cell hydrophilic polyurethane polymer foam is prepared and contacted with an open cell hydrophobic polyurethane foam having a plurality of surfaces defining a plurality of pores. The hydrophilic polyurethane prepolymer emulsion is then cured while by contacting with a gas at elevated temperature for a period of time sufficient to form a coating of substantially open cell hydrophilic polyurethane polymer foam on the hydrophobic polyurethane foam.
申请公布号 US2007141265(A1) 申请公布日期 2007.06.21
申请号 US20050588349 申请日期 2005.02.02
申请人 THOMSON TIMOTHY 发明人 THOMSON TIMOTHY
分类号 B05D3/02 主分类号 B05D3/02
代理机构 代理人
主权项
地址
您可能感兴趣的专利