Biocompatible polyurea-urethane hydrated polymers

Details Biocompatible polyurea-urethane hydrated polymers Biocompatible polyurea-urethane hydrated polymers

1991-07-03

1992-12-29

Kight, III, John

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 52, 528 53, 528 59, 528 66, 528 77, 4284231, C08G 1802

Patent

active

051752298

ABSTRACT:
A class of hydrophilic prepolymers and hydrated polymer gels are disclosed which are characterized by their transparency, biocompatibility and resistance to nonspecific protein adsorption. At least 75%, preferably at least 90%, of the prepolymers are isocyanate-capped oxyethylene-based diols or polyols having molecular weight of about 7000-30,000. Essentially all of the hydroxyl groups of the diols or polyols are capped with polyisocyanate prior to formation of the hydrated polymer.

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