Irradiation conversion of thermoplastic to thermoset polyurethan

Details Irradiation conversion of thermoplastic to thermoset polyurethan Irradiation conversion of thermoplastic to thermoset polyurethan

1996-10-08

1999-05-04

Sergent, Rabon

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 90, 522 95, 522 96, 522135, 522136, 522138, 522139, 522140, 522173, 522174, 525123, 525127, 525131, 525452, 525455, 528 75, C08J 328, C08F 830, C08F 800, C08L 7504

Patent

active

059004444

ABSTRACT:
Disclosed is a radiation-crosslinkable thermoplastic polyurethane composition comprising (a) the reaction product of: (i) an aliphatic polyisocyanate, and (ii) a polyahl, and (b) a reactive monomer cross-linker. The reactive monomer cross-linker facilitates cross-linking of the reaction product upon contact of the cross-linker-containing composition with photons from a radiation source. Also disclosed is a process for converting this thermoplastic polyurethane into a thermoset polyurethane by irradiating the thermoplastic polyurethane with a beam of photons.

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