摘要:
Copolymers suitable for use as temporary surface protection for two- or three-dimensional structures and as sizing agents are based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and are obtainable by free radical emulsion or solution polymerization ofA) from 50 to 95% by weight of a C.sub.1 -C.sub.8 -alkyl acrylate or methacrylate,B) from 5 to 20% by weight of an unsaturated carboxylic acid or anhydride,C) from 0 to 20% by weight of further water-soluble comonomer, andD) from 0 to 10% by weight of other comonomer in the presence ofE) from 2 to 60 parts by weight of a polyvinyl alcohol per 100 parts by weight of the monomer mixture of A) to D).
摘要:
Chemically modified proteins obtainable by reacting casein, collagen, gelatin, albumin or mixtures thereof(a) with 0.5 to 15% by weight of chlorine or of a compound which liberates chlorine under the reaction conditions, in an aqueous medium at a pH of from 0 to 7 or(b) with 0.5 to 50% by weight of a non-aromatic mono- or disulfonic acid which contains in its organic radical one or more groups or structural features which react with nucleophiles, in an aqueous medium at a pH of from 6 to 14,are used as dispersants in colorant formulations.
摘要:
A process for preparing nitrobenzophenones by reaction of benzene or its derivatives with nitrobenzoyl chloride in the presence of a Lewis acid, a color-stable modification of 1,4-dimethyl-5-cyano-3-[4-(2,4-dimethylbenzoyl)phenylazo]-2-hydroxy-6-pyridone and its use for dyeing or printing synthetic fiber material are described.
摘要:
Tertiary amides useful as low-foam wetting agents in the textile industry have the formula I ##STR1## where R.sup.1 is straight-chain or branched C.sub.5 -C.sub.17 -alkyl or -alkenyl,R.sup.2 is straight-chain or branched C.sub.3 -C.sub.6 -alkyl,R.sup.3, R.sup.4 and R.sup.5 are each independently of the others hydrogen, methyl or ethyl, andn is from 3 to 15.
摘要:
Reaction products of compounds of the formula IRCONHC.sub.2 H.sub.4 OH Iwhere R is C.sub.12 -C.sub.20 -alkyl or -alkenyl, with 14 to 18 mol of ethylene oxide per mole of I, are useful as textile softeners.
摘要翻译:其中R为C 12 -C 20烷基或链烯基的式I RCONHC 2 H 4 OH I化合物与每摩尔I为14至18摩尔环氧乙烷的反应产物可用作纺织品软化剂。
摘要:
Copolymers suitable for use as temporary surface protection for two- or three-dimensional structures and as sizing agents are based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and are obtainable by free radical emulsion or solution polymerization ofA) from 50 to 95% by weight of a C.sub.1 -C.sub.8 -alkyl acrylate or methacrylate,B) from 5 to 20% by weight of an unsaturated carboxylic acid or anhydride,C) from 0 to 20% by weight of further water-soluble comonomer, andD) from 0 to 10% by weight of other comonomer in the presence ofE) from 2 to 60 parts by weight of a polyvinyl alcohol per 100 parts by weight of the monomer mixture of A) to D).
摘要:
Condensates of arenesulfonic acids and formaldehyde are prepared by sulfonating arenes obtainable by thermal cracking of a naphthenic residue oil and fractional distillation of the cracked products of the fraction obtained at 100-120.degree. C. under atmospheric pressure, sulfonating this aromatics fraction with oleum at 120.degree.-160.degree. C. using an amount of from 0.7 to 1.2 parts by weight of oleum having an SO.sub.3 content of 24% by weight per part by weight of aromatics fraction, and subsequently condensing the arenesulfonic acids with formaldehyde in a conventional manner, and are used as dispersants, in particular for preparing dye formulations.
摘要:
Dispersants of increased bioeliminability or biodegradability for use in dye and pigment preparations, as tanning aids, in plastics production and in crop protection formulations contain from 3 to 50% by weight of one or more aromatic or long-chain aliphatic carboxylic acids, salts thereof or anhydrides thereof or a mixture thereof.
摘要:
Aqueous polyester dispersions are prepared by(a) condensing an aromatic dicarboxylic acid or ester with at least one diol to give a prepolymer having an acid number of from 2 to 8,(b) reacting the prepolymer with at least one molecular weight enhancer compound, e.g. trimellitic anhydride to give a polyester having an acid number of from 40 to 60, and(c) dispersing the polyester in an aqueous medium to form an aqueous dispersion by adding an aqueous mixture of ammonia and an amine in a molar ratio of from 10:1 to 1:10 to a melt of the polyester which has a temperature within the range from 150.degree. to 230.degree. C.,and are used as sizes for sizing filament warp yarns.