Sheet-like polyurethane moldings are produced by impregnation of porous sheets with a prepolymer containing free isocyanate groups and reversibly blocked isocyanate-reactive groups or containing free isocyanate-reactive groups and reversibly blocked isocyanate groups, and subsequent reaction of the prepolymers in a heated mold.
申请公布号
CA2204781(A1)
申请公布日期
1997.11.08
申请号
CA19972204781
申请日期
1997.05.07
申请人
SCHERZER, DIETRICH;BRUCHMANN, BERND;JUNG, LUDWIG;RENZ, HANS
发明人
SCHERZER, DIETRICH;BRUCHMANN, BERND;JUNG, LUDWIG;RENZ, HANS