摘要:
A phosphate-free detergent formulation for machine dishwashing, having from 1 to 20% by weight of a mixture of from 5 to 95% by weight of hydrophobically modified polycarboxylates I formed from 20 to 80 mol % of at least one monoethylenically unsaturated C3-C10-mono- or -dicarboxylic acid or anhydrides thereof, from 0 to 80 mol % of at least one monomer of the general formula (I) in which R1, R2 and R3 are each independently H, CH3 or C2H5, and R4 is a linear, branched or cyclic radical having from 1 to 6 carbon atoms or an aromatic radical having from 6 to 12 carbon atoms, and from 0 to 20 mol % of at least one further monomer, from 5 to 95% by weight of hydrophilically modified polycarboxylates II, where the sum of a1) and a2) adds up to 100% by weight.
摘要:
The invention relates to nonionic surfactants of ethoxylates of linear C16-C18-alcohols with, on average, 8.5 to 9.5 mol of ethylene oxide per mole of linear C16-C18-alcohol.
摘要:
The invention relates to copolymers which comprise, in copolymerized form, a1) 30 to 90% by weight of at least one monoethylenically unsaturated C3-C8-carboxylic acid or of an anhydride or water-soluble salt thereof, a2) 3 to 60% by weight of at least one monomer comprising sulfo groups, a3) 3 to 60% by weight of at least one nonionic monomer of the formula (I) H2C═C(R1)COO—[R2—O]o—R3 (I) in which R1 is hydrogen or methyl, R2 are identical or different, linear or branched C2-C6-alkylene radicals which may be arranged in blocks or randomly, and R3 is hydrogen or a straight-chain or branched C1-C4-alkyl radical and o is a natural number from 3 to 50, a4) 0 to 30% by weight of one or more further ethylenically unsaturated monomers which are polymerizable with a1), a2) and a3), where the sum of a1), a2), a3) and a4) adds up to 100% by weight.
摘要:
The present invention relates to a carrier system for fragrances, to the production thereof and to the use of the carrier system in various fields of industry.
摘要:
A process for the preparation of aqueous polymer dispersions comprising at least one lipophilic active substance by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active substance, wherein (i) at least one lipophilic active substance which has a water solubility of not more than 5 g/l (determined at 25° C. and 1013 mbar) and a melting point below 130° C. is emulsified in an aqueous solution which comprises at least one dispersion stabilizer with formation of an aqueous dispersion of the active substance having a mean particle size of not more than 1000 nm and (ii) a monomer composition which comprises at least 80% by weight of a neutral, monoethylenically unsaturated monomer emulsifiable in water is subjected to an emulsion polymerization in the aqueous dispersion of the active substance which is obtained according to (i), and use of the dispersions thus obtainable as sizes for paper, board and cardboard, for the treatment and for the stabilization of thermoplastic polymers, for material protection and for crop protection.
摘要:
Finely divided, cationic polymer dispersions which are obtainable by emulsion polymerization of ethylenically unsaturated monomers in an aqueous solution of a cationic prepolymer as a dispersant, wherein a cationic prepolymer is first prepared by polymerization of (a) from 10 to 45% by weight of at least one (meth)acrylate which has an amino group and/or a quaternary ammonium group, and/or one (meth)acrylamide which carries an amino group and/or a quaternary ammonium group, (b) from 40 to 85% by weight of at least one optionally substituted styrene, (c) from 0 to 20% by weight of acrylonitrile or methacrylonitrile, (d) from 1 to 15% by weight of at least one ethylenically unsaturated carboxylic acid or one ethylenically unsaturated carboxylic anhydride and (e) from 0 to 20% by weight of at least one nonionic, ethylenically unsaturated monomer differing from the monomers (b) and (c), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, in a solution polymerization in a water-miscible organic solvent, and the solution of prepolymer thus prepared is diluted with water, and wherein an emulsion polymerization of a monomer mixture comprising (i) from 30 to 80% by weight of acrylonitrile and/or methacrylonitrile, (ii) from 5 to 50% by weight of at least one C1- to C4-alkyl acrylate or at least one C1- to C4-alkyl methacrylate, (iii) from 5 to 50% by weight of at least one C6- to C14-alkyl acrylate or at least one C6- to C14-alkyl methacrylate and (iv) from 0 to 20% by weight of a nonionic monomer differing from the monomers (i), (ii) and (iii), the sum (i)+(ii)+(iii)+(iv) being 100% by weight, is then carried out in the aqueous solution of the prepolymer in the presence of water-soluble polymerization initiators, and the use of the finely divided, cationic polymer dispersions thus obtainable as engine sizes and surface sizes for paper, board and cardboard.
摘要:
A process for printing on substrates, wherein the substrates are pretreated with a composition which comprises a polymer obtainable by free radical polymerization of ethylenically unsaturated compounds (monomers) (referred to below as polymer for short), and at least 40% by weight of the monomers are olefins.
摘要:
Finely divided, amphoteric, aqueous polymer dispersions which are obtainable by a two-stage polymerization, a prepolymer being prepared in the first polymerization stage from a monomer mixture comprising (a) from 15 to 40% by weight of at least one (meth)acrylate and/or (meth)acrylamide having in each case a free amino group, protonated amino group and/or quaternized amino group, (b) from 40 to 70% by weight of at least one optionally substituted styrene, (c) from 0 to 25% by weight of acrylonitrile and/or methacrylonitrile, (d) from 0.5 to 5% by weight of at least one ethylenically unsaturated monomer comprising acid groups and (e) from 0 to 30% by weight of at least one nonionic, ethylenically unsaturated monomer differing from (b) and (c), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, in a solution polymerization in a solvent partly to completely miscible with water, water then being added to the solution/dispersion of the prepolymer and then at least one nonionic, ethylenically unsaturated monomer being subjected to an emulsion polymerization in the aqueous solution of the prepolymer in a second polymerization stage, processes for the preparation of the polymer dispersions by two-stage polymerization and use of the polymer dispersions as sizes for paper, board and cardboard.
摘要:
A paper size which comprises a stable aqueous dispersion of a reactive size, from 5 to 100% by weight, based on the reactive size, of a substantially linear nitrogen-comprising polymer having at least 3 mmol/g of basic nitrogen atoms, and from 1 to 50% by weight of cationic starch having a degree of substitution of at least 0.05 is described. The paper size has a good sizing effect and a stable viscosity.
摘要:
Solid mixtures of a reactive size and starch, which are obtainable by mixing at least one reactive size with at least one starch in a melt in the presence of at least one destructuring agent for starch under the action of shear forces at from 65 to 250° C. and cooling the melt to room temperature, are used in the form of aqueous dispersions as process assistants in papermaking.