Verfahren zur Herstellung von Polyurethan-Schaumstoff
摘要
A polyurethane foam suitable for use as a wound-contact layer in a wound dressing is made by mixing 1 part by weight of an isocyanate-capped prepolymer having from 0.5 to 1.2 meq NCO groups/g with from 0.4 to 1.0 parts by weight of water in the presence of from 0.05 to 0.4 parts by weight of a C<5> to C<7> monohydric alcohol, and then drying the product. The monohydric alcohol is preferably methanol, and the isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer.
申请公布号
DE69225864(D1)
申请公布日期
1998.07.16
申请号
DE1992625864
申请日期
1992.11.06
申请人
JOHNSON & JOHNSON MEDICAL, INC., ARLINGTON, TEX., US