Solubilized acrylic polymers and carpet shampoos containing the

Details Solubilized acrylic polymers and carpet shampoos containing the Solubilized acrylic polymers and carpet shampoos containing the

1978-04-21

1980-05-20

Weinblatt, Mayer

Compositions

Water-softening or purifying or scale-inhibiting agents

252 891, 252545, 252DIG2, 252DIG3, 252DIG13, 252DIG15, 8137, 134 4, C11D 337

Patent

active

042038596

ABSTRACT:
As a modifier for carpet shampoos and the like, an aqueous composition containing a polymer component comprising an aqueous dispersion of an acrylic polymer, polyvalent metal ions, ammonia or a volatile amine to solubilize the copolymer, and optionally CO.sub.3 .dbd., HCO.sub.3.sup.-- or an anion of an amino acid. The acrylic polymer is a low molecular weight copolymer of 20-60 parts butyl acrylate, 0-25 parts styrene, 0-15 parts methyl methacrylate, and 40-60 parts of at least one of methacrylic acid, acrylic acid, and itaconic acid. Preferably the polymer contains at least about 5 parts of styrene, the styrene:butyl acrylate ratio being no more than 1:1. The pka of the polymer component is less than about 6.7 and the number average molecular weight of the polymer is about 2500-100,000. The viscosity in centipoises at 25% solids of polymer in water at 35.degree. C. and containing at least two equivalents of ammonium cation and at least 0.8 equivalents of zinc as zinc oxide, is preferably below 3,500 cps, more preferably below 1,500 cps.

REFERENCES:
patent: 3723358 (1973-03-01), Morgan et al.
patent: 3994744 (1976-11-01), Anderle et al.
patent: 4002571 (1977-01-01), Anderle et al.
patent: 4013595 (1977-03-01), Podella et al.

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