摘要:
Dyestuff-containing aqueous dispersions obtainable bya) preparation of at least two copolymers A) and B) in an organic solvent by solution polymerization,A) containing from 5 to 50 % by weight, based on A), of an ethylenically unsaturated acid andB) being essentially free of ethylenically unsaturated acids and the solution polymerization of the copolymers A) or B) being carried out in the presence of the other respective copolymer A) or B) already prepared,b) addition of a dyestuff before, during or after the solution polymerization,c) dispersion of the resulting solution in water andd) removal of the organic solvent if desired, are described.
摘要:
Shaped articles are produced from a finely particulate material as aggregate and an aqueous binder preparation containing an acrylate polymer by moistening the aggregate with the binder preparation, making it into the desired shape and then drying it, using a binder preparation whose binder is an acrylate polymer whose glass transition range is relatively high and which is formed from (A) a predominant amount of methyl methacrylate, (B) a minor amount of (meth) acrylic acid, (C) a minor amount of an optional alkyl acrylate and (D) a small optional amount of another specific polymerizable compound.
摘要:
A shaped article is obtainable by impregnating or coating a preform composed in the main of mineral fibers, nonfibrous mineral fillers and starch with a composition which contains a binder comprising a copolymer composed ofa) 60-95% by weight of methyl methacrylate (monomer I),b) 5-40% by weight of acrylic or methacrylic acid (monomer II)c) 0-35% by weight of one or more acrylic esters of a C.sub.1 -C.sub.8 -alkanol (monomer III),d) 0-5% by weight of a copolymerizable olefinically polyunsaturated monomer (monomer IV), ande) 0-5% by weight of another copolymerizable monomer (monomer V)in polymerized form, the weight percentages of monomers I, II, III and V having been selected within the stated limits in such a way that a polymer composed of these monomers only would have a glass transition temperature of from 60.degree. to 125.degree. C.
摘要:
An improved paper-coating composition which contains, per 100 parts by weight of a finely divided pigment, from 5 to 25 parts by weight of a copolymer A, in the form of an aqueous dispersion, as a binder, and from 0.5 to 10 parts by weight of a copolymer B, containing(a) from 20 to 70% by weight of copolymerized units of hydroxy-C.sub.2 -C.sub.4 -alkyl acrylates or hydroxy-C.sub.2 -C.sub.4 -alkyl methacrylates,(b) from 10 to 50% by weight of copolymerized units of acrylic acid, methacrylic acid, maleic acid and/or monoesters of maleic acid and(c) from 5 to 50% by weight of copolymerized units of acrylonitrile, methacrylonitrile, C.sub.1 -C.sub.4 -alkyl acrylates of C.sub.1 -C.sub.4 -alkyl methacrylates, or vinyl esters of saturated C.sub.2 -C.sub.4 -carboxylic acidsas the co-binder, with or without from 0.1 to 2.0 parts by weight of an optical brightener which is activated by the co-binder. The paper-coating composition has high water retention.
摘要:
A molding based on finely divided organic and/or inorganic materials containing, as binder, the solid component of an aqueous polymer dispersion which is obtainable by polymerizing unsaturated monomers which can be polymerized by means of free radicals in the aqueous phase in the presence of a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically and/or enzymatically degraded polysaccharide, chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of the said compounds, by the process of free-radical aqueous emulsion polymerization.
摘要:
In the manufacture of flocked textiles by applying a polymer emulsion, flocking and drying, a heat-sensitized polymer emulsion is used and the emulsion coat is first only gelled, by heating, in the zone adjoining the textile substrate, and is then flocked and dried at an elevated temperature.
摘要:
Paper coating compositions with finely divided pigment, optical brightener and a binder containing a copolymer of from 5 to 30% by weight of mono-olefinically unsaturated carboxylic acids, from 5 to 30% by weight of mono-olefinically unsaturated monomers containing basic nitrogen atoms and from 50 to 80% by weight of other olefinically unsaturated monomers which, when polymerized alone, give water-insoluble homopolymers and cause virtually no reduction in the effect of conventional optical brighteners even in the absence of casein or carboxymethyl cellulose.
摘要:
An aqueous coating composition which comprises as one binder component an aqueous polymer dispersion comprisingi) an acrylate polymer based on from 30 to 60% by weight of C.sub.1 -C.sub.8 -alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid,(ii) a nonassociative rheology stabilizer comprising an acrylate copolymer based on C.sub.1 -C.sub.6 -alkyl (meth)acrylate and (meth)acrylic acid, and(iii) as crosslinker, tris(alkoxycarbonylamino)-triazine or a mixture of tris(alkoxycarbonylamino)-triazines.
摘要:
Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.
摘要:
Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.