The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1978
Filed:
Feb. 16, 1977
Applicant:
Inventors:
Hanns Boessler, Darmstadt, DE;
Hubert Rauch, Weiterstadt, DE;
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528503 ; 260 / ; 260 / ; 264 13 ; 424 33 ; 526263 ; 526264 ; 526303 ; 526312 ; 526317 ; 526320 ; 528483 ; 528499 ; 528502 ;
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.