CARBOXYLATE ESTER OF POLYSACCHARIDE

    公开(公告)号:CA2943657C

    公开(公告)日:2018-11-13

    申请号:CA2943657

    申请日:2015-03-11

    Applicant: BASF SE

    Abstract: The invention relates to a carboxylate ester of polysaccharide characterised in that it possesses ester bonds with trimellitic anhydride and is soluble in water. The polysaccharide is esterified with trimellitic anhydride and the degree of substitution of the polysaccharide lies in the range of from 0.5 to 3. The invention further relates to methods for the manufacture of these polysaccharides esters in organic solvents, in water or in an extruder or a kneader and to their use in fabric and home care formulations.

    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.

    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.

    CARBOXYLATE ESTER OF POLYSACCHARIDE

    公开(公告)号:CA2943657A1

    公开(公告)日:2015-10-01

    申请号:CA2943657

    申请日:2015-03-11

    Applicant: BASF SE

    Abstract: The invention relates to a carboxylate ester of polysaccharide characterised in that it possesses ester bonds with trimellitic anhydride and is soluble in water. The polysaccharide is esterified with trimellitic anhydride and the degree of substitution of the polysaccharide lies in the range of from 0.5 to 3. The invention further relates to methods for the manufacture of these polysaccharides esters in organic solvents, in water or in an extruder or a kneader and to their use in fabric and home care formulations.

Patent Agency Ranking