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公开(公告)号：ES2135956T3
公开(公告)日：1999-11-01
申请号：ES97100134
申请日：1997-01-07
Applicant: BASF AG
Inventor： SCHADE CHRISTIAN DR
Abstract: The production of water-insoluble polymers (I) comprises the radical polymerisation of ethylenically unsaturated monomers (II) in an aqueous gel phase with a viscosity of at least 800 mPa.s, in which the gel-former (III) has an average molecular weight of more than 20,000. Also claimed are polymer dispersions obtained by the above process.
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公开(公告)号：DE59601732D1
公开(公告)日：1999-05-27
申请号：DE59601732
申请日：1996-08-29
Applicant: BASF AG
Inventor： STEIN STEFAN , BOECKH DIETER , SCHADE CHRISTIAN DR , ROESSLER GERHARD
Abstract: PCT No. PCT/EP96/03795 Sec. 371 Date Mar. 3, 1998 Sec. 102(e) Date Mar. 3, 1998 PCT Filed Aug. 29, 1996 PCT Pub. No. WO97/09359 PCT Pub. Date Mar. 13, 1997Porous polymers which are in powder form and contain N-vinylimidazole units and which are obtainable by free-radical precipitation polymerization of a) 5-100% by weight of at least one N-vinylimidazole of the formula where R1, R2 and R3 are identical or different and are H, C1-C4-alkyl, N-vinylaxazolidone, N-vinyltriazole, 4-vinylpyridine N-oxide or mixtures of said monomers, b) 0-95% by weight of other copolymerizable monoethylenically unsaturated monomers and c) 0-50% by weight of at least one monomer with at least two non-conjugated ethylenic double bonds in aqueous solution which contains 0.5-30% by weight of at least one electrolyte and, based on the monomers employed, 0.5-80% by weight of at least one surfactant, a process of the preparation thereof, and the use of the porous polymers.
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公开(公告)号：AT171954T
公开(公告)日：1998-10-15
申请号：AT96104924
申请日：1996-03-28
Applicant: BASF AG
Inventor： SCHADE CHRISTIAN DR
Abstract: Aq. polymer dispersions (X) are prepd. by radical aq. emulsion polymerisation of a mixt. contg. at least one gp. of ethylenic unsatd. radical polymerisable monomers. The mixt. comprises 30 - 90 wt.% monomers (A) with a min. solubility of 5 wt.% in water at the chosen polymerisation temp. and pressure (w.r.t. mixt.) and 10 - 70 wt.% monomers (B) with solubility in water less than 5 wt.% under the same conditions. The mixt. contains no surfactant monomers (C). Some or all of the emulsion polymerisation takes place in a dispersant medium comprising water and an organic solvent (S) whose solubility in water is max. 10 wt.% under the above conditions. The dispersant comprises at least 20 wt.% (S) and there is sufficient (S) present to form aq. and organic phases, but the water / (S) mass ratio is not greater than 1 : 2. Also claimed are (i) the prepn. of (X) by the above method; and (ii) oil-in-water emulsions contg. (D).
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公开(公告)号：DE19642490A1
公开(公告)日：1998-04-16
申请号：DE19642490
申请日：1996-10-15
Applicant: BASF AG
Inventor： BREITENBACH JOERG DR , SCHADE CHRISTIAN DR , SIGWART CHRISTOPH DR , MUELLER ULRICH DR , HESSE MICHAEL DR , NEGELE ANTON DR , RUEBENACKER MARTIN DR , ELLER KARSTEN DR
IPC: C08F4/606 , C08F26/02 , C08F26/00 , A61K31/795
Abstract: Cationic polymerisation of N-vinylamides, optionally with comonomers, is initiated by a heterogeneous catalyst which is: (i) a carrier catalyst; (ii) an acid-activated layered silicate; (iii) a zeolite or silico-alumo-phosphate of zeolitic structure; (iv) a hetero-polyacid, or (v) a crosslinked polymer containing fluorosulphonic acid groups. The N-vinylamide is preferably N-vinyl pyrrolidone or a compound of formula (I) CH2=CH-N(COR )(R ) (I) R , R = H or 1-6C alkyl, especially N-vinyl formamide.
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公开(公告)号：DE19545100A1
公开(公告)日：1997-06-05
申请号：DE19545100
申请日：1995-12-04
Applicant: BASF AG
Inventor： BREEDE KNUT , SCHADE CHRISTIAN DR
IPC: C08F6/10 , B01D11/02 , C08F6/00 , C08F6/28 , C08F20/04 , C08F22/02 , C08F265/02 , C08F267/02
Abstract: The invention relates to a process for the removal of residual solvents and residual monomers from powdered polymerisates, containing carboxyl groups, by leaching the polymerisates with fluid or supercritical carbon dioxide, dinitrogen monoxide, propane and/or butane as leaching agents.
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Patent Agency Ranking
公开(公告)号：DE19519337A1
公开(公告)日：1996-11-28
申请号：DE19519337
申请日：1995-05-26
Applicant: BASF AG
Inventor： BOECKH DIETER DR , JAEGER HANS-ULRICH DR , FUNHOFF ANGELIKA DR , SCHADE CHRISTIAN DR , STEIN STEFAN DR
Abstract: The disclosure relates to the use of water-insoluble cross linked polymers containing either (a) units of 1-vinyl pyrrolidone and/or 1-vinyl imidazoles of formula (I), in which R, R and R are identical or different and stand for H, C1-C4 alkyl or phenyl, or (b) units of 4-vinyl-pyridine-N-oxide incorporated by polymerisation, in either case in the form of fine particles, at least 90 wt % of the polymers having a particle size of between 0.1 and 500 mu m. The proposed cross-linked polymers are intended for use as additives for detergents containing a bleaching agent and having an alkyl benzene sulphonates content of not more than 8 wt.%, with the aim of preventing dye transfer during washing. Also disclosed are detergents containing water-insoluble cross-linked polymers in quantities of between 0.05 and 10 wt.%.
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公开(公告)号：DE4341072A1
公开(公告)日：1995-06-08
申请号：DE4341072
申请日：1993-12-02
Applicant: BASF AG
Inventor： SCHADE CHRISTIAN DR , JAEGER HANS-ULRICH DR , DETERING JUERGEN DR
Abstract: PCT No. PCT/EP94/03868 Sec. 371 Date May 20, 1996 Sec. 102(e) Date May 20, 1996 PCT Filed Nov. 23, 1994 PCT Pub. No. WO95/15345 PCT Pub. Date Jun. 8, 1995Polymers of alkyl-1-vinylimidazoles, a process for preparing polymers of alkyl-1-vinylimidazoles by free-radical polymerization of a monomer mixture comprising (a) 10-100% by weight of at least one alkyl-1-vinylimidazole and (b) 0-90% by weight of 1-vinylpyrrolidone, 1-vinylcaprolactam, 1-vinyltriazole, 1-vinylimidazole, 1-vinyloxazolidinone or mixtures thereof, (c) 0-30% by weight of other monoethylenically unsaturated monomers and (d) 0-10% by weight of a monomer containing at least 2 monoethylenic double bonds in water, at least one C1-C4-alcohol or mixtures thereof, and the use of polymers which comprise at least 10% by weight of an alkyl-1-vinylimidazole as copolymerized unit as additive to detergents to inhibit transfer of dyes during the washing process.
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公开(公告)号：DE4218540A1
公开(公告)日：1993-12-09
申请号：DE4218540
申请日：1992-06-05
Applicant: BASF AG
Inventor： BRUCHMANN BERND DR , MINGES ROLAND DR , SCHADE CHRISTIAN DR
IPC: B01J31/06 , C07B61/00 , C07C263/16 , C07C265/14 , C07D229/00 , C08F222/08 , C08F226/06 , C08G18/79
Abstract: The invention relates to a process for the preparation of polyisocyanates containing uretdione groups by catalytic dimerisation of monomeric isocyanates, polymers bearing imidazole groups being employed as catalysts.
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公开(公告)号：ES2252134T3
公开(公告)日：2006-05-16
申请号：ES01127601
申请日：2001-11-20
Applicant: BASF AG
Inventor： SCHADE CHRISTIAN DR , DESBOIS PHILIPPE DR , FISCHER WOLFGANG DR , GAUSEPOHL HERMANN DR , DEFFIEUX ALAIN PROF DR , MENORET STEPHANE
Abstract: Procedimiento para la polimerización aniónica de estireno, en caso dado junto con cantidades subordinadas de comonómeros, por medio de una combinación de iniciadores de organilo metálico A. alquilo o alcoholato de litio, B. alquilo o alcoholato de metal (II), C. alquilo o alcoholato de aluminio de la fórmula Al R12R2 con R1 = alquilo con 1 a 4 átomos de carbono y R2 = H, R1 o -O-C2H5. caracterizado porque la polimerización se lleva a cabo en presencia de un 5 a un 500 % en moles, referido a A+B+C de una base de Lewis a temperaturas por encima de 80ºC.
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公开(公告)号：DE19721400A1
公开(公告)日：1998-11-26
申请号：DE19721400
申请日：1997-05-22
Applicant: BASF AG
Inventor： FISCHER WOLFGANG DR , GAUSEPOHL HERMANN DR , LAETSCH STEFAN DR , SCHADE CHRISTIAN DR
Abstract: The invention relates to a method for anionic polymerisation of dienes or of dienes and vinyl aromatic monomers in a vinyl aromatic monomer or mixture of monomers to form homopolydienes or copolymers or mixed homopolydienes and copolymers. The polymerisation is carried out in a tempered, hydraulically filled tubular flow reactor or a multitube flow reactor.
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