AQUEOUS DISPERSIONS OF WATER-SOLUBLE AND/OR WATER-SWELLABLE ANIONIC POLYMERS, METHOD FOR THEIR PRODUCTION AND USE THEREOF
    1.
    发明申请
    AQUEOUS DISPERSIONS OF WATER-SOLUBLE AND/OR WATER-SWELLABLE ANIONIC POLYMERS, METHOD FOR THEIR PRODUCTION AND USE THEREOF 审中-公开
    水溶性的和/或水溶胀性阴离子聚合物的水分散液,生产和使用方法

    公开(公告)号:WO2006018113A3

    公开(公告)日:2006-08-03

    申请号:PCT/EP2005008276

    申请日:2005-07-30

    Abstract: The invention relates to aqueous dispersions of water-soluble and/or water-swellable anionic polymers, which can be obtained by the radical polymerisation of ethylenically unsaturated anionic monomers in an aqueous medium in the presence of at least one stabiliser. According to the invention, the polymerisation is carried out in the presence of at least one water-soluble polymer, acting as a stabiliser, from the following groups: (a) polymers of vinyl acetate and/or vinyl propionate grafted onto (i) polyethylene glycols or (ii) polyethylene glycols or polypropylene glycols, whose end groups are terminated on one or both sides with alkyl, carboxyl or amino groups, polyalkylene glycols, or polyalkylene glycols, whose end groups are terminated on one or both sides with alkyl, carboxyl or amino groups and (b) water-soluble copolymers consisting of (b1) non-ionic monoethylenically unsaturated monomers, (b2) cationic monoethylenically unsaturated monomers and optionally (b3) anionic monoethylenically unsaturated monomers, the fraction of the polymerised cationic monomers being greater than that of the anionic monomers. The invention also relates to a method for producing the aqueous dispersions by the radical polymerisation of the anionic monomers in an aqueous medium in the presence of the aforementioned water-soluble polymers (a) and (b), in addition to the use of the aqueous dispersions as thickening agents for aqueous systems.

    Abstract translation: 水溶性和/或水溶胀性的阴离子聚合物是由烯属不饱和阴离子单体的自由基聚合获得,在至少一种稳定剂的存在下在水性介质中,水分散体,其中在所述基团(a)中的接枝聚合物中的至少一种水溶性聚合物的存在下聚合 接通(I)的聚乙二醇或乙酸乙烯酯和/或丙酸乙烯酯或两侧用烷基,羧基或氨基封端的聚乙二醇或聚丙二醇,聚亚烷基二醇,一个或(ii)两者封端的烷基,羧基或氨基,聚亚烷基二醇和( b)(b1)的非离子单烯属不饱和单体,(b2)中的阳离子单烯属不饱和单体以及合适的话(b3)的阴离子的单烯属不饱和单体,其中所述的聚合物的比例的水溶性共聚物 比阴离子单体作为稳定剂进行更大化的阳离子性单体,在上述水溶性聚合物的存在下制备在含水介质中由所述阴离子单体的自由基聚合的水性分散体的方法(a)和(b)中以及使用该水性分散体作为 增稠剂用于水性体系。

    3.
    发明专利
    未知

    公开(公告)号:DE60305335T2

    公开(公告)日:2006-09-28

    申请号:DE60305335

    申请日:2003-08-29

    Applicant: BASF AG

    Abstract: A process for the production of water-soluble or water-swellable cationic polymers by (i) free-radically initiated copolymerization of monomer mixtures in water comprising (a) from 1 to 99% by weight of a cationic monomer or quaternizable monomer, (b) from 1 to 99% by weight of a water-soluble monomer, (c) from 0 to 10% by weight of a bi- or polyfunctional, free-radically copolymerizable monomer, adjusting the amounts (a) to (c) in such a way that the resulting polymer has an overall positive charge, in the presence of 1 to 100% of the amount of a salt which is necessary to saturate the reaction medium with said salt and in the presence of 0,1 to 20 % by weight referred to the weight of the dispersion, of an amphoteric dispersant having an overall negative charge, and (ii) subsequent quaternization of the polymer if the monomer (a) employed is a non-quaternized monomer is disclosed.

    4.
    发明专利
    未知

    公开(公告)号:DE102004038983A1

    公开(公告)日:2006-02-23

    申请号:DE102004038983

    申请日:2004-08-10

    Applicant: BASF AG

    Abstract: Aqueous dispersions of water-soluble and/or water-swellable anionic polymers which are obtainable by free radical polymerization of ethylenically unsaturated, anionic monomers in an aqueous medium in the presence of at leas one stabilizer, the polymerization being carried out in the presence of at least one water-soluble polymer of the groups consisting of (a) graft polymers of vinyl acetate and/or vinyl propionate on (i) polyethylene glycols or (ii) polyethylene glycols or polypropylene glycols blocked at one or both terminal groups with alkyd carboxyl or amino groups, polyalkylene glycols, polyalkylene glycols blocked at one or both terminal groups with alkyl carboxy or amino groups and (b) water-soluble copolymers of (b1) nonionic monoethylenically unsaturated monomers, (b2) cationic monoethylenically unsaturated monomers and if appropriate (b3) anionic monoethylenically unsaturated monomers, the fraction of the interpolymerized cationic monomers being greater than that of the anionic monomers, as a stabilizer, said aqueous dispersions are prepared by free radical polymerization of the anionic monomers in an aqueous medium in the presence of the abovementioned water-soluble polymers (a) and (b) and said aqueous dispersions are used as thickeners for aqueous systems.

    5.
    发明专利
    未知

    公开(公告)号:DE19851024A1

    公开(公告)日:2000-05-11

    申请号:DE19851024

    申请日:1998-11-05

    Applicant: BASF AG

    Abstract: Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides that comprise the following in relation to 100 parts by weight of water: (A) 5-80 parts by weight of a water-soluble polymer containing N-vinylformamide and/or N-vinyl acetamide with particle sizes ranging from 50 nm 2 mu m and (B) 1-50 parts by weight of at least one polymer dispersion agent that is incompatible with the water-soluble polymers (A) in an aqueous solution. The invention also relates to a method for the production of said dispersions by polymerization of (A) 5-80 parts by weight of N-vinyl formamide and/or N-vinylacetamide, optionally together with other monoethylenically unsaturated monomers that form water-soluble polymers, and (B) 1-50 parts by weight of at least one polymer dispersion agent that is incompatible with the polymers formed from the monomers (A) in an aqueous solution, in 100 parts by weight of water at temperatures ranging from 30-95 DEG C in the presence of 0.001-5.0 wt. % in relation to the monomers used. The invention further relates to the use of aqueous dispersions of water-soluble polymers as dehydrating agents.

    AQUEOUS DISPERSIONS OF HYDROSOLUBLE POLYMERISATES OF ETHYLENICALLY UNSATURATED ANIONIC MONOMERS, METHOD FOR THE PRODUCTION AND USE THEREOF

    公开(公告)号:CA2532918C

    公开(公告)日:2012-07-10

    申请号:CA2532918

    申请日:2004-07-17

    Applicant: BASF AG

    Abstract: The invention relates to aqueous dispersions of hydrosoluble polymerisates of ethylenically unsaturated anionic monomers obtainable by monomer radical polymerisation in an aqueous medium in the presence of at least one type of stabiliser characterised in that the polymerisation is carried out in the presence of at least one type of hydrosoluble polymer of the following groups: (a) branched polymerisates of vinyl acetate and/or vinyl propionate on polyethylenglycol, polyethylenglycol closed on one or two sides, by terminal groups comprising alkyl, carboxyl or amino groups, copolymerisate of alkylpolyalkylenglycolacrylates or alkylpolyalkylenglycolmethacrylates and acrylic acid and/or methacrylic acid, polyalkylenglycols, polyethylenglycole closed on one or two sides, by terminal groups comprising alkyl, carboxyl or amino groups; and (b) hydrolysed copolymerisates of vinylalkylethers and maleic anhydride in the form of free carboxyl groups and in the form of salts neutralised at least partially by alkali metal hydroxides or ammonium basses and/or a starch of a cationically modified potato starch group, cationically modified potato starch, degradable potato and maltodextrin starches which are used in the form of stabilisers. A method for producing said aqueous dispersions by monomer radical polymerisation in an aqueous medium in the presence of said hydrosoluble polymerisates of the groups (a) and (b) and the use of said aqueous dispersions in the form of thickeners for aqueous systems are also disclosed.

    DISPERSIONES ACUOSAS DE POLIMERIZADOS HIDROSOLUBLES DE MONOMEROS ANIONICOS ETILENICAMENTE INSATURADOS, SU PROCEDIMIENTO DE FABRICACION Y SU UTILIZACION.

    公开(公告)号:ES2279418T3

    公开(公告)日:2007-08-16

    申请号:ES04763311

    申请日:2004-07-17

    Applicant: BASF AG

    Abstract: Dispersiones acuosas de polímeros hidrosolubles constituidos de monómeros aniónicos con insaturación etilénica que se pueden obtener por polimerización homolítica de los monómeros en un medio acuoso en presencia al menos de un estabilizador, caracterizadas por que se realiza la polimerización en presencia al menos de un polímero hidrosol de los siguientes grupos: (a) polímeros de injerto de acetato de vinilo y/o de propionato de vinilo sobre polietilenglicoles, polietilenglicoles con grupos terminales bloqueados sobre uno o los dos lados por grupos alquilo, carboxilo o amino y/o copolímeros de metacrilatos - glicoles alquilpolialquileno y ácido metracrílico, y al menos de un polímero hidrosoluble elegido entre (b) copolímeros hidrolizados de vinilalquiléteres y anhídrido de ácido maleico en forma de grupos carboxilo libres y en forma de sales neutralizadas al menos parcialmente por hidróxidos de metales alcalinos o bases de amonio, y/o de un almidón hidrosoluble del grupo del almidón de patata, almidón de patata degradado y maltodextrina, como estabilizador.

    9.
    发明专利
    未知

    公开(公告)号:BRPI0412844A

    公开(公告)日:2006-09-26

    申请号:BRPI0412844

    申请日:2004-07-17

    Applicant: BASF AG

    Abstract: An aqueous dispersion of water-soluble polymers obtained by free radical polymerization of ethylenically unsaturated anionic monomers in an aqueous medium in the presence of a stabilizer, wherein the stabilizer comprises: (a) at least one water-soluble polymer selected from the group consisting of a graft polymer of vinyl acetate and/or vinyl propionate on polyethylene glycol, a polyethylene glycol blocked at one or both terminal groups with an alkyl, a carboxyl or an amino group, and a copolymer of alkyl polyalkylene glycol methacrylate and methacrylic acid; and (b) at least one water-soluble polymer selected from the group consisting of a hydrolyzed copolymer of vinyl alkyl ether and maleic anhydride in the form of free carboxyl groups or in the form of salts at least partially neutralized with one or more alkali metal hydroxides or one or more ammonium bases, a cationically modified potato starch, an anionically modified potato starch, a degraded potato starch and maltodextrin.

    10.
    发明专利
    未知

    公开(公告)号:AT283872T

    公开(公告)日:2004-12-15

    申请号:AT99971821

    申请日:1999-10-30

    Applicant: BASF AG

    Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 mum and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.0% by weight, based on the monomers used, and the aqueous dispersions of water-soluble polymers are used as drainage aids, flocculants and retention aids and as wet and dry strength agents and as fixing compositions in papermaking.

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