摘要:
Paints and renders contain, as binders, aqueous dispersions of copolymers which have a minimum film-forming temperature of from -15.degree. to 20.degree. C. and consist of(a) from 10 to 50% by weight of vinylidene chloride, up to half of which may be replaced with vinyl chloride,(b) from 44 to 88% by weight of esters of acrylic and/or methacrylic acid with alkanols of 1 to 18 carbon atoms and, if required, styrene, vinyl acetate, vinyl propionate or a mixture of these monomers and(c) from 2 to 6% by weight of .alpha.,.beta.-monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides.
摘要:
A process for the preparation of aqueous polymer dispersions which have a low film-forming temperature but still give films having a high block resistance, and the use of these polymer dispersions as binders for coating materials.
摘要:
Plasters, renders, masonry paints, interior paints and glazes which contain from 0.5 to 10% by weight of a distearyldiketene emulsion consisting of(a) from 3 to 40 parts by weight of distearyldiketene,(b) from 10 to 70 parts by weight of a solvent,(c) from 5 to 50 parts by weight of water and(d) from 0.5 to 5 parts by weight of emulsifier have particularly advantageous properties.
摘要:
An aqueous synthetic resin formulation essentially comprising a synthetic resin A, a metallic cation with a charge number of from 2 to 4, dispersants, water, and finely divided fillers, and also, if desired, acetophenone derivatives or benzophenone derivatives, the resin A being prepared by free-radically initiated aqueous emulsion polymerization of monomers in the presence of from 0.01 to 3 parts by weight of an alien polymer seed per 100 parts by weight of the monomer mixture.
摘要:
An aqueous synthetic resin formulation essentially comprising a synthetic resin A, a metallic cation with a charge number of from 2 to 4, dispersants, water, and finely divided fillers, and also, if desired, acetophenone derivatives or benzophenone derivatives, the resin A being prepared by free-radically initiated aqueous emulsion polymerization of monomers in the presence of from 0.01 to 3 parts by weight of an alien polymer seed per 100 parts by weight of the monomer mixture.
摘要:
Binder formulations based on aqueous polymer dispersions having a minimum film-forming temperature of below 10° C. and comprising at least one binder polymer P in the form of an aqueous dispersion comprising at least one anionic emulsifier and at least one nonionic emulsifier.
摘要:
Aqueous low-emulsifier dispersions of emulsion copolymers which contain, as copolymerized units,(a) from 35 to 55% by weight of butadiene,(b) from 35 to 60% by weight of styrene,(c) from 1 to 3% by weight of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 6 carbon atoms,(d) from 1 to 3% by weight of amides of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 5 carbon atoms,(e) from 1 to 4% by weight of N-methylolamides of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids of 3 to 5 carbon atoms, or their alkyl ethers, and(f) from 1 to 3% by weight of acrylic acid and/or methacrylic acid monoesters of alkanediols of 2 to 6 carbon atoms,the emulsion containing, as emulsifier, from 0.1 to 0.8% by weight, based on emulsion copolymers, of fatty alcohol-sulfonates and/or alkylbenzenesulfonates, where alkyl is of 12 to 16 carbon atoms, are of particular value as binders for aqueous anti-corrosion paints.
摘要:
Aqueous polyacrylate dispersions having improved flow characteristics are prepared by polymerizing esters of acrylic acid and/or methacrylic acid and alkanols of 1 to 10 carbon atoms, with or without admixture of styrene and/or vinyl esters and/or water-soluble monoolefinically unsaturated comonomers (the monomer feed being in the form of an emulsion), in aqueous emulsion in the presence of a free radical polymerization initiator, a protective colloid, a nonionic emulsifier and a regulator, at least a part of the protective colloid being introduced into an aqueous initial charge, and a water-soluble regulator being employed in the initial charge and in the feed.