FIELD: pharmacy. SUBSTANCE: dispersion has the following components, wt. -%: copolymer of methacrylic acid with acrylic acid methyl ester and acrylic acid butyl ester 30-40; emulsifying agent 0.4-1.0, and water - the rest. Ratio of carboxylic and ester groups = 1:(1-1.5). Ratio of links in copolymer, wt.-%: methacrylic acid 39-46; acrylic acid methyl ester 30-49, and acrylic acid butyl ester 12-24. Drug coatings made of the proposed dispersion are soluble at pH 6.0 (not below) that excludes preearly dissolution of drugs in stomach. EFFECT: improved quality and property of dispersion. 2 tbl, 55 ex
Title | Year | Author | Number |
---|---|---|---|
CARBOXYLATE LATEX THICKENING AGENT | 1994 |
|
RU2088610C1 |
METHOD OF PREPARING LATEX WITH HOLLOW POLYMER PARTICLES | 1998 |
|
RU2128670C1 |
METHOD OF PREPARING COPOLYMER LATEXES FOR ANTISTATIC COATINGS | 1998 |
|
RU2128671C1 |
MODIFIED RELEASE 6-METHYL-2-ETHYL-HYDROXYPYRIDINE SUCCINATE DOSAGE FORM | 2008 |
|
RU2411035C2 |
COMPOSITION FOR SEALING INTERBOARD JOINTS AND THERMALLY INSULATING STRUCTURAL UNITS, AND HEAT-INSULATION SYSTEM | 1999 |
|
RU2157351C1 |
AQUEOUS ADHESIVE FORMULATION FOR ATTACHING RUBBERS BASED ON POLAR OR NONPOLAR GREEN BLANK TO A METAL | 1993 |
|
RU2076129C1 |
METHOD OF PREPARING AQUEOUS DISPERSIVE ADHESIVE | 1997 |
|
RU2132860C1 |
AQUEOUS-DISPERSION DYE | 2000 |
|
RU2188217C2 |
ADHESIVE COMPOSITION FOR ADHESION OF MATERIALS BEING OPTICALLY TRANSPARENT | 1993 |
|
RU2087510C1 |
COATING COMPOSITION SUITABLE FOR PHARMACEUTICAL OR NUTRICEUTICAL DOSAGE FORMS | 2011 |
|
RU2606588C2 |
Authors
Dates
1998-08-20—Published
1995-11-02—Filed