POLYMER MIXTURES AS DEPOSIT INHIBITORS IN WATER-BEARING SYSTEMS

    公开(公告)号:CA2844585A1

    公开(公告)日:2013-02-14

    申请号:CA2844585

    申请日:2012-08-06

    Applicant: BASF SE

    Abstract: 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 C2-C8 olefins, allyl alcohol, isoprenol, C1-C4 alkyl vinyl ethers and vinyl esters of C1-C4 monocarboxylic acids, (a2) 20 to 80 wt% of at least one monoethylenically unsaturated C3-C8 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 C3-C8 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), H2C=C(R1)(CH2)xO[R2-O]o-R3, wherein R1 represents hydrogen or methyl, R2 represents the same or different, linear or branched C2-C6 alkylene groups, which can be arranged block-wise or statistically, and R3 represents hydrogen or a straight-chain or branched C1-C4 alkyl group, x representing 0, 1 or 2 and o for a number between 3 and 50.

    12.
    发明专利
    未知

    公开(公告)号:AT550301T

    公开(公告)日:2012-04-15

    申请号:AT06763728

    申请日:2006-06-14

    Applicant: BASF SE

    Abstract: Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.

    15.
    发明专利
    未知

    公开(公告)号:DE50311809D1

    公开(公告)日:2009-09-24

    申请号:DE50311809

    申请日:2003-06-04

    Applicant: BASF SE

    Abstract: Sulfonic acid group copolymer composition comprises (a) 30-95 mole% of at least one monoethylenically unsaturated carboxylic acid, (b) 3-35 mole% of at least one sulfonic acid group containing monomers, and (c) 1-35 mole% of nonionic monomer obtained by statistical or block polymerization. Sulfonic acid group copolymer composition comprises: (1) 30-95 mole% of at least one monoethylenically unsaturated carboxylic acid; (2) 3-35 mole% of at least one sulfonic acid group containing monomer of formula (I); and (3) 1-35 mole% of nonionic monomer of formula (II). R = H or Me; R1 = branched 1-4C alkyl; X = chemical bond or -COO-R1; and M = H, alkali metal, or ammonium. R2 = H or Me; R3 = chemical bond or optionally branched 1-6C alkylene; R4 = optionally branched 2-4C alkylene; R5 = optionally branched 1-6C alkyl, 5-8C cycloalkyl, or aryl; n = 3-50. The polymer is obtained by statistical or block polymerization.

    16.
    发明专利
    未知

    公开(公告)号:AT431392T

    公开(公告)日:2009-05-15

    申请号:AT02716702

    申请日:2002-01-30

    Applicant: BASF SE

    Abstract: The invention relates to cleaning formulations and to the use of the cleaning formulations for preventing the discoloration of plastic articles during washing in machine dishwashers. The cleaning formulations comprise the following components: a) copolymers containing a1) from 10 to 60% by weight of at least one monomer unit (A) from the group of the monoethylenically unsaturated C3-C10 monocarboxylic and dicarboxylic acids or their anhydrides, a2) from 40 to 90% by weight of at least one monomer unit (B) of the formula (I) where R , R and R independently of one another are H, CH3, C2H5, C3H7, COOH or OH, Y is -C(=O)-, -C(=O)-O-, -O-, -O-C(=O)-, -O-C(=O)-O- or -C(=O)-NH-, n is 0 or 1, and R is a linear or branched, cyclic or acyclic aliphatic radical having from 7 to 100 carbon atoms, and a3) from 0 to 30% by weight of at least one further monomer unit (C) copolymerizable with the monomer units (A) and (B) and from the group consisting of C1-C6 (meth)acrylic esters, C1-C6 vinyl esters, C2-C8 olefins, styrenes, acrylonitriles, acrylamides, vinylformamides, allyl alcohols, vinylphosphonates, vinyl-substituted heterocycles and unsaturated organosulfonic acids, b) a bleaching system comprising at least one component from the group consisting of bleach, bleach activator and bleaching catalyst.

    POLYMER MIXTURES AS DEPOSIT INHIBITORS IN WATER-BEARING SYSTEMS

    公开(公告)号:CA2844585C

    公开(公告)日:2019-09-17

    申请号:CA2844585

    申请日:2012-08-06

    Applicant: BASF SE

    Abstract: A polymer mixture in solid or aqueous form, comprising, based on the polymer fraction, (A) 5 to 95% by weight of a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol of (a1) 20 to 80% by weight of at least one monomer selected from the group consisting of C2 to C8 olefins, allyl alcohol, isoprenol, C1 to C4 alkyl vinyl ethers and vinyl esters of C1 to C4 monocarboxylic acids, (a2) 20 to 80% by weight of at least one monoethylenically unsaturated C3 to C8 carboxylic acid, an anhydride or salt of same, (a3) 0 to 50% by weight of one or more monomers comprising sulfonic acid groups, (B) 5 to 95% by weight of a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol of (b1) 30 to 100% by weight of at least one monoethylenically unsaturated C3 to C8 carboxylic acid, an anhydride or salt of same, (b2) 0 to 70% by weight of one or more monomers comprising sulfonic acid groups, (b3) 0 to 70% by weight of at least one nonionic monomer of the formula (I) H2C=C(R1)(CH2)x O[R2-O]o-R3 (I), where R1 is hydrogen or methyl, R2 is identical or different, linear or branched, C2-C6 alkylene radicals, which can be arranged in blocks or randomly, and R3 is hydrogen or a straight-chain or branched C1-C4 alkyl radical, x is 0, 1 or 2, and o is a number from 3 to 50.

    PREPARING MALEIC ACID-ISOPRENOL COPOLYMERS

    公开(公告)号:CA2840781C

    公开(公告)日:2019-07-23

    申请号:CA2840781

    申请日:2012-07-10

    Applicant: BASF SE

    Abstract: The present invention provides polymers having improved scale-inhibiting performance, which are effective in inhibiting precipitates and deposits of calcium carbonate, calcium sulfate and basic magnesium salts in water-carrying systems., and also a process for preparation thereof. The present invention provides a process for preparing maleic acid-isoprenol copolymers from a) 30% to 80% by weight of maleic acid, b) 5% to 60% by weight of isoprenol, c) 0% to 30% by weight of one or more further ethylenically unsaturated monomers, which comprises polymerizing maleic acid, isoprenol and optionally the further ethylenically unsaturated monomer in the presence of a redox initiator and of a chain transfer agent at a temperature in the range from 10 to 80°C.

    Mezclas de polímeros como inhibidores de depósito en sistemas acuíferos

    公开(公告)号:ES2561455T3

    公开(公告)日:2016-02-26

    申请号:ES12742921

    申请日:2012-08-06

    Applicant: BASF SE

    Abstract: Mezcla de polímeros en forma sólida o acuosa que contiene, con respecto a la proporción de polímero, (A) del 5 % al 95 % en peso de un polímero soluble en agua o dispersable en agua con un peso molecular promediado en peso de 1.000 g/mol a 20.000 g/mol, determinado por medio de cromatografía de permeación en gel frente a patrones de poli(ácido acrílico), compuesto de (a1) del 20 % al 80 % en peso de al menos un monómero seleccionado del grupo que está constituido por olefinas C2 a C8, alcohol alílico, isoprenol, alquilviniléteres C1 a C4 y ésteres vinílicos de ácidos monocarboxílicos C1 a C4, (a2) del 20 % al 80 % en peso de al menos un ácido carboxílico C3 a C8 monoetilénicamente insaturado, de un anhídrido o de una sal del mismo, (a3) del 0 % al 50 % en peso de uno o varios monómeros que contienen grupos de ácido sulfónico, (B) del 5 % al 95 % en peso de un polímero soluble en agua o dispersable en agua con un peso molecular promediado en peso de 1.000 g/mol a 50.000 g/mol, determinado por medio de cromatografía de permeación en gel frente a patrones de poli(ácido acrílico), compuesto de (b1) del 30 % al 100 % en peso de al menos un ácido carboxílico C3 a C8 monoetilénicamente insaturado, de un anhídrido o de una sal del mismo, (b2) del 0 % al 70 % en peso de uno o varios monómeros que contienen grupos ácido sulfónico, (b3) del 0 % al 70 % en peso de uno o varios monómeros no iónicos de fórmula (I) H2C>=C(R1)(CH2)xO[R2-O]o-R3 (I), en la que R1 representa hidrógeno o metilo, R2 representa restos alquileno C2-C6 iguales o distintos, lineales o ramificados que pueden estar dispuestos a modo de bloque o estadísticamente, y R3 representa hidrógeno o un resto alquilo C1-C4 de cadena lineal o ramificado, x representa 0, 1 o 2 y o representa un número de 3 a 50.

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