Stable catalytic and aqua-activated polyurethane casting bandage

Details Stable catalytic and aqua-activated polyurethane casting bandage Stable catalytic and aqua-activated polyurethane casting bandage

1991-09-12

1993-03-23

Prebilic, Paul

Surgery: splint, brace, or bandage

Orthopedic bandage

Splint or brace

523105, 428290, 428913, 521115, 528 53, A61F 504

Patent

active

051959461

ABSTRACT:
The invention is directed to a stable catalytic and aqua-activated polyurethane bandage used for orthopedic casting. The bandage has a substrate and an aqua-activated polyurethane prepolymer. The catalyst used to make the prepolymer is .alpha.-(morpholinopolyethoxy)-.beta.-morpholinoethane or the mixture of .alpha.-(morpholinopolyethoxy)-.beta.-morpholinoethane and cocatalyst bis-(2-dimethylaminoethyl) ether. The catalyst in this bandage can be optionally combined with a stabilizing agent, such as ethane-sulfonic acid to form a structurally stable complex. The catalyst of this invention provides an excellent solidification time and significantly prolongs the storage period of the bandage.

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