Copolymeric resin binder powders

Details Copolymeric resin binder powders Copolymeric resin binder powders

1977-02-16

1978-09-05

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 296H, 260 296TA, 264 13, 424 33, 526263, 526264, 526303, 526312, 526317, 526320, 528483, 528499, 528502, C08F 622

Patent

active

041122151

ABSTRACT:
Powders of physiologically-tolerable copolymers of vinyl and vinylidene monomers, said copolymers being useful as fast-dissolving resin binders for the preparation of pharmaceutical coatings, having a residual monomer content of less than 0.05 percent by weight, and having a primary particle size less than one micron; a method of preparing such powders by spray drying an aqueous dispersion of a copolymer under non-sintering temperature conditions; a method for preparing solutions for coating orally-ingestible dosage unit forms with said copolymers; and such dosage unit forms coated with said copolymers.

REFERENCES:
patent: 2667473 (1954-01-01), Morner et al.
patent: 3365409 (1968-01-01), Lanthier
patent: 3753958 (1973-08-01), Wingler et al.
patent: 3787340 (1974-01-01), Labana et al.
patent: 3803111 (1974-04-01), Munro et al.
patent: 3925329 (1975-12-01), Heinrich et al.

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