Vinyl-urethane substituted hydroxyethyl cellulose

Details Vinyl-urethane substituted hydroxyethyl cellulose Vinyl-urethane substituted hydroxyethyl cellulose

1990-03-09

1991-04-23

Nutter, Nathan M.

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

Synthetic resins

From carbohydrate or derivative as a reactant

B05D 302, B05D 312, B32B 2700, B32B 2740

Patent

active

050101552

ABSTRACT:
Vinyl substituted hydroxyethyl cellulose is obtained by reaction of hydroxyethyl cellulose, either in solution or in dispersion, with a vinyl-unsaturated isocyanate. The vinyl-urethane substituted hydroxyethyl cellulose of this invention can be used to form coatings on a substrate, such as glass, plastic, metal, wood and the like, which can subsequently be crosslinked by conventional UV-curing technology into hydrophilic films. When coated onto a mold, such coatings are especially useful in forming very hydrophilic surfaces on reaction-molded polymer shapes, such as contact lenses.

REFERENCES:
patent: 4861629 (1989-08-01), Nahm

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