GB726466A - Improvements in or relating to freeze resistant aqueous polymer-containing paint - Google Patents

Abstract

An aqueous synthetic polymer-containing paint contains a polyalkylene polyamine. The synthetic polymer may be prepared from butadiene, isoprene, 2,3-dimethyl butadiene, piperylene, 2-chlorobutadiene, 2,3-dichlorobutadiene, 2-bromobutadiene, 2-fluorobutadiene, 2,3-difluorobutadiene, styrene, vinyl toluene, divinyl benzene, the chlorostyrenes, the alkyl styrenes, alpha - chlorostyrene, alpha - methylstyrene, vinyl naphthalene, vinyl pyridine, vinyl carbazole, acrylic acid, acrylamide, methyl acrylate, methyl methacrylate, methacrylic acid, methacrylamide, acrolein, acrylonitrile, methacrylonitrile, vinyl chloride, bromide, fluoride, acetate, formate, propionate, vinyl methyl or ethyl ether, divinyl methyl ketone, vinyl ethyl or isobutyl ketone, divinyl ketone, vinyl ethyl sulphone, the vinyl thioethers, vinylidene fluoride, or cyanide, 1 - chloro - 1 - fluoroethene, chloro - trifluoroethylene isobutene, ethylene and propylene. Copolymers of a minor proportion of a conjugated diene and a major proportion of a monoethylenically unsaturated compound (in an example styrene) are preferred. Specified polyamines are diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentaethylene hexamine, nonaethylene decamine, dipropylene triamine and tripropylene tetramine. Specified paint pigments are titanium dioxide, clay, silica, lithopone, mica, barium sulphate, talc, zinc sulphite, carbon black, iron oxides, cadmium yellows, phthalocyanines, ultramarine, chromium oxides, umber and sienna, while pigment dispersing agents which may be present are water-soluble soaps, the aliphatic or aromatic sulphonates, the sulpholignins, the aliphatic sulphates, soluble phosphates, polyethers, ether-alcohol condensates, casein, soya-bean protein, albumens and cellulose ethers. An anti-foaming agent such as pine oil, or tributyl phosphate, may be present.