Polyisocyanate cross-linked polymers containing cellulosic compo

Details Polyisocyanate cross-linked polymers containing cellulosic compo Polyisocyanate cross-linked polymers containing cellulosic compo

1981-12-29

1983-09-13

Kight, III, John

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

Synthetic resins

From carbohydrate or derivative as a reactant

527301, 527311, C08G 1806, C08G 1828, C08L 110

Patent

active

044043473

ABSTRACT:
Cellulose derivatives such as cellulose nitrate, cellulose acetate, cellulose acetate butyrate or ethyl cellulose may be cross-linked with a synthetic film-forming resin such as acrylic resin, alkyd resin, epoxy resin, aminoplast resin or mixtures of these resins by first reacting said cellulose derivative with a polyisocyanate compound to give an addition-reaction product containing free isocyanate groups, then reacting the resulting product with said film-forming resin. The resulting cross-linked hybrid polymers exhibit remarkably advantageous properties as a film-forming component for use in lacquer type coating compositions.

REFERENCES:
patent: 3475356 (1969-10-01), Davis et al.
patent: 4251404 (1981-02-01), Simms

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