Polymers useful as PH responsive thickeners and monomers therefo

Details Polymers useful as PH responsive thickeners and monomers therefo Polymers useful as PH responsive thickeners and monomers therefo

1995-06-07

1999-02-23

Smith, Jeffrey T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526320, 5263184, 52631844, 5263293, 526932, 524317, C08K 509, C08K 510, C08K22018, C08K22030

Patent

active

058744959

ABSTRACT:
Novel aqueous thickener or thixotropic polymers are prepared by the copolymerization of (A) about 15-60 weight percent of a C.sub.3 -C.sub.8 alpha, beta-ethylenically unsaturated carboxylic acid monomer, preferably acrylic or methacrylic acid or a mixture thereof with itaconic or fumaric acid, (B) about 15-80 weight percent of a nonionic copolymerizable C.sub.2 -C.sub.12 alpha, beta-ethylenically unsaturated monomer, preferably a monovinyl ester such as ethyl acrylate or a mixture thereof with styrene, acrylonitrile, vinyl chloride or vinyl acetate, and (C) about 1-30 weight percent of a new and novel nonionic ethylenically unsaturated nonionic biphillic monomer such as tristyrylpoly(ethyleneoxy).sub.x methyl acrylate, to provide a stable aqueous colloidal dispersion at an acid pH lower than about 5.0 but becoming an effective thickener for aqueous systems upon adjustment to a pH of about 5.5-10.5 or higher. These polymers adjusted to a pH of about 5.5 or higher are effective thickeners for a wide variety of aqueous systems including cosmetic products, drilling muds, aqueous coating compositions such as latex paint, and high solids compositions such as spackle, grouts, cements, and the like.

REFERENCES:
patent: 3652497 (1972-03-01), Jones et al.
patent: 3657175 (1972-04-01), Zimmerman
patent: 3891591 (1975-06-01), Chang et al.
patent: 4075411 (1978-02-01), Dickstein
patent: 4079028 (1978-03-01), Stevens
patent: 4138381 (1979-02-01), Chang et al.
patent: 4155892 (1979-05-01), Stevens
patent: 4268641 (1981-05-01), Koenig et al.
patent: 4384096 (1983-05-01), Sonnablend
patent: 4421902 (1983-12-01), Chang et al.
patent: 4469611 (1984-09-01), Snyder, Jr. et al.
patent: 4639395 (1987-01-01), Clarke et al.
patent: 4668410 (1987-05-01), Haas et al.
patent: 4741790 (1988-05-01), Hawe et al.
patent: 4769167 (1988-09-01), Haas et al.
patent: 4814000 (1989-03-01), Ciocca et al.
patent: 4814514 (1989-03-01), Yokata et al.
patent: 4912245 (1990-03-01), Giardeau et al.
patent: 4921902 (1990-05-01), Evani et al.
patent: 5015711 (1991-05-01), Simonet et al.
patent: 5082591 (1992-01-01), Marchetto
patent: 5086142 (1992-02-01), Fock et al.
patent: 5192592 (1993-03-01), Shay
patent: 5294693 (1994-03-01), Egraz et al.
patent: 5362415 (1994-11-01), Egraz et al.

Affiliated with

Also associated with

Rating

Polymers useful as PH responsive thickeners and monomers therefo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymers useful as PH responsive thickeners and monomers therefo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymers useful as PH responsive thickeners and monomers therefo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-307767