摘要:
The invention relates to a polymer blend in solid or aqueous form containing, relative to the polymer content, (A) 5 to 95 wt% of a water-soluble or water-dispersible polymer with an average molecular weight of 1000 to 20000 g/mol consisting of (a1) 20 to 80 wt% of at least one monomer, selected from the group consisting of C 2 -C 8 olefins, allyl alcohol, isoprenol, C 1 -C 4 alkyl vinyl ethers and vinyl esters of C 1 -C 4 monocarboxylic acids, (a2) 20 to 80 wt% of at least one monoethylenically unsaturated C 3 -C 8 carboxylic acid, an anhydride or a salt thereof, (a3) 0 to 50 wt% of one or more monomers containing sulphonic acid groups, (B) 5 to 95 wt% of a water-soluble or water-dispersible polymer with an average molecular weight of 1000 to 50000 g/mol consisting of (b1) 30 to 100 wt% of at least one monoethylenically unsaturated C 3 -C 8 carboxylic acid, an anhydride or a salt thereof, (b2) 0 to 70 wt% of one or more monomers containing sulphonic acid groups, (b3) 0 to 70 wt% of at least one non-ionic monomer of formula (I), H 2 C=C(R 1 )(CH 2 ) x O[R 2 -O] o -R 3 , wherein R 1 represents hydrogen or methyl, R 2 represents the same or different, linear or branched C 2 -C 6 alkylene groups, which can be arranged block-wise or statistically, and R 3 represents hydrogen or a straight-chain or branched C 1 -C 4 alkyl group, x representing 0, 1 or 2 and o for a number between 3 and 50.
摘要:
The invention relates to cleaner formulations and to the use of said cleaner formulations for preventing plastic articles from discoloring when cleaned in a dishwasher. The cleaner formulations comprise the following components: a) copolymers containing a1) 10 to 60 % by weight of at least one monomer component (A) from the group of the monoethylenically unsaturated C3-C10 mono- or dicarboxylic acids or the anhydrides thereof; a2) 40 to 90 % by weight of at least one monomer component (B) of the general formula (I), wherein R , R and R independently represent H, CH3, C2H5, C3H7, COOH or OH, Y represents -C(=O)-, -C(=O)-O-, -O-, -O-C(=O)-, -O-C(=O)-O- or -C(=O)-NH-, n equals 0 or 1, R is a linear or branched, cyclic or acyclic aliphatic group with 7 to 100 carbon atoms; and a3) 0 to 30 % by weight of at least one further monomer component (C) that can be copolymerized with the monomer components (A) and (B) and that is selected from the group consisting of C1-C6 (meth)acrylic esters, C1-C6 vinylethers, C2-C8 olefins, styrenes, acrylnitriles, acrylamides, vinylformamides, allylalcohols, vinylphosphonates, vinyl-substituted heterocycles and unsaturated organosulfonic acids; b) a bleaching system that comprises at least one component of the group consisting of bleaching agents, bleaching activators and bleaching catalysts.
摘要:
The invention relates to clear rinsing agent formulations for dishwashers containing, as components: a) 1 - 20 wt.- % of hydrophobically modified polycarboxylates, b) 1 - 30 wt.- % of weak foaming non-ionic surfactants, c) 0 - 50 wt.- % of a non-aqueous solution, d) 0 - 15 wt. % of solubiliziers, e) 0 -15 wt. % of a acidifying agents, f) 0 - 10 wt.- % of one or several additional additives such as anionic, cationic, zwitterionic and amphoteric surfactants, dyes, fragrances and corrosion inhibitors, g) water to make up to 100 wt.- %.
摘要:
The invention relates to the use of copolymers containing alkylene oxides as an additive to aqueous systems containing phosphate and/or phosphonate in industrial technical installations. These copolymers, while being incorporated by polymerization in a statistical or block-by-block manner, contain: (a) 50 to 93 mol- % of acrylic acid and/or of a water-soluble salt of the acrylic acid; (b) 5 to 30 mol- % of methacrylic acid and/or of a water-soluble salt of methacrylic acid, and; (c) 2 to 20 mol- % of at least one nonionic monomer of formula (I) in which the variables have the following meaning: R1 represents hydrogen or methyl; R2 represents a chemical bond or an unbranched or branched C1-C6 alkylene; R3 represents the same or different unbranched or branched C2-C4 alkylene radicals; R4 represents unbranched or branched C1-C6 alkyl, and; n represents 3 to 50.
摘要:
The invention relates to a process for producing maleic acid-isoprenol copolymers made of a) from 30 to 80% by weight of maleic acid, b) from 5 to 60% by weight of isoprenol, c) from 0 to 30% by weight of one or more other ethylenically unsaturated monomers, by polymerizing maleic acid, isoprenol and optionally the other ethylenically unsaturated monomer in the presence of a redox-chemistry initiator and of a regulator at a temperature in the range from 10 to 80°C.
摘要:
The invention relates to the use of hydrophobins as additives in the crystallization of solids, particularly to the use thereof for the production of gypsum from the aqueous phase.
摘要:
The invention relates to a mewthod for controlling the thickening of aqueous systems containing silicates, characterized in that at least one copolymer having an average molecular weight Mw of more than 60000 g/mol is added to said aqueous system and that the copolymer consists, essentially statistically, of monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and, optionally, other ethylenically unsaturated comonomers, the indicated amounts referring to the total amount of all used monomers, respectively.