Process for dispersing hydroxypropyl methyl cellulose

Details Process for dispersing hydroxypropyl methyl cellulose Process for dispersing hydroxypropyl methyl cellulose

1982-09-03

1984-09-04

Morris, Theodore

Compositions

Fluent dielectric

N-containing

106170, 106171, 106177, 106178, 106186, 106197R, 424 70, 25217411, 25217416, 25217417, 252DIG13, C11D 114, C08L 108

Patent

active

044696272

ABSTRACT:
A method of facilitating the incorporation of hydroxypropyl methyl cellulose (HPMC) into a liquid formulation containing water which comprises:
1. forming a liquid premix of hydroxypropyl methyl cellulose dispersed in an aqueous-free organic liquid medium in which it does not swell or dissolve, selected from the group consisting of liquified nonionic surfactants, fatty acids, anionic surfactants and mixtures thereof, by dispersing HPMC in said liquified organic medium with mild agitation;
2. adding said premix to an aqueous-containing liquid formulation and dispersing therein by means of a short mixing cycle as short as 5-10 minutes. This method has particular utility in the preparation of liquid shampoos, liquid dishwashing detergents, liquid hand soaps and other aqueous-containing liquid formulations wherein it is desirable or necessary to include hydroxypropyl methyl cellulose as a viscosity modifier.

REFERENCES:
patent: 3402137 (1968-09-01), Fisher et al.
patent: 3503895 (1970-03-01), Whelan
patent: 3522070 (1970-07-01), Webb
patent: 3960584 (1976-06-01), Savage
patent: 4231802 (1980-11-01), McGinley
patent: 4330414 (1982-05-01), Hoover
patent: 4414144 (1983-11-01), Liebowitz

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