PROCESS FOR PREPARATION OF CROSSLINKED POLYAMINES AND CROSSLINKED GELATIN FOAMS

摘要

ABSTRACT OF THE DISCLOSUREPolyalkylenepolyamines and gelatins arecrosslinked in a non-anhydrous environment to yieldwater-swellable, essentially water-insoluble gels andfoams. The polyalkylenepolyamine is contacted with apolyisocyanate at a pH between 5 and 8 and subjected toa high rate of agitation. The gelatin is contactedwith a polyisocyanate at a pH between 6 and 8 andsubjected to a high rate of agitation. The process ofthis invention can be employed to immobilize proteins,enzyme , antibodies, etc.