-
公开(公告)号：DE3261467D1
公开(公告)日：1985-01-17
申请号：DE3261467
申请日：1982-08-18
Applicant: BASF AG
Inventor： HENNE ANDREAS DR , HESSE ANTON DR , JACOBI MANFRED DR , SCHORNICK GUNNAR DR , VYVIAL RUDOLF , HOLOCH KLAUS DR
-
公开(公告)号：DE3167097D1
公开(公告)日：1984-12-13
申请号：DE3167097
申请日：1981-08-29
Applicant: BASF AG
Inventor： HENNE ANDREAS DR , HESSE ANTON DR , HEIL GUENTER DR , SCHORNICK GUNNAR DR
-
公开(公告)号：DE3316593A1
公开(公告)日：1984-11-08
申请号：DE3316593
申请日：1983-05-06
Applicant: BASF AG
Inventor： SCHORNICK GUNNAR DR , BUETHE INGOLF DR , JACOBI MANFRED DR , LENZ WERNER DR , LEHNERER WOLFGANG DR
IPC: C07C67/08 , C07C67/26 , C07C69/54 , C08F290/06 , C08G63/47 , C08G65/332 , C09D4/00 , C09D163/00 , C09D167/06 , C08G63/76 , C08G65/32 , C08G65/48 , C09D3/64 , C09D3/80
Abstract: 1. A process for preparing an ester of acrylic or methacrylic acid with a hydroxyl-containing organic compound, which comprises esterifying a saturated polyester which contains no fewer than 2 free hydroxyl groups per molecule and may contain ether groups or a saturated polyether which contains no fewer than 2 free hydroxyl groups per molecule, this polyester or polyether having an average molecular weight ~Mn of from 400 to 4,000, with from 100 to 150 mol %, based on the OH groups of the polyester or polyether, of acrylic acid or methacrylic acid in the presence of an acidic esterification catalyst and one or more hydrocarbons forming an azeotropic mixture with water and a small amount of a polymerization inhibitor at elevated temperature with azeotropic removal of the resulting water, after the esterification removing the hydrocarbon by distillation and after neutralization of the esterification catalyst reacting the remaining acrylic or methacrylic acid with an amount, equivalent to the acid number, of an epoxy compound having no fewer than two epoxy groups per molecule until an acid number =
-
公开(公告)号：DE3316592A1
公开(公告)日：1984-11-08
申请号：DE3316592
申请日：1983-05-06
Applicant: BASF AG
-
公开(公告)号：ES2122726T3
公开(公告)日：1998-12-16
申请号：ES96100873
申请日：1996-01-23
Applicant: BASF AG
Inventor： HAHNLE HANS-JOACHIM DR , NEUFELD ECKHARD , SCHORNICK GUNNAR DR , MINGES ROLAND DR , ANSTOCK THOMAS DR , TROPSCH JURGEN DR
IPC: B01D21/01 , B01J19/00 , B01J19/24 , C02F1/56 , C08F2/00 , C08F2/10 , C08F2/16 , C08F4/04 , C08F20/00
Abstract: Prodn. of high mol. polymers involves: (a) polymerising water-soluble, mono-ethylenically unsatd. monomers and opt. crosslinkers contg. non-conjugated ethylenically unsatd. double bonds. in the molecule and opt. water-insol. monoethylenically unsatd. monomers in aq. soln. in the presence of polymerisation initiators in a tubular reactor; and (b) forcing the gelatinous reaction mixt. from the reactor with an inert gas. The reactor has: (i) a conical taper at one end, so the ratio of the dia. (D1) of the reactor to the dia. (D2) at the end of the cone is (2-25); and (ii) the angle between D1 at the beginning of the cone and the inner wall of the cone of more than 45 and less than 90 degrees .
-
Patent Agency Ranking
公开(公告)号：DE59500894D1
公开(公告)日：1997-12-04
申请号：DE59500894
申请日：1995-07-05
Applicant: BASF AG
Inventor： BOECKH DIETER DR , SEELMANN-EGGEBERT HANS-PETER D , JAEGER HANS-ULRICH DR , KAHL ROLF-DIETER , SCHORNICK GUNNAR DR
Abstract: A low viscosity mixt. contains (i) 40-97.5 wt.% of amphiphilic nonionic graft polymer contg.(a) at least 20 wt.% of polyalkylene oxide units or polyvinylpyrrolidone units as the hydrophilic part of the molecule and (b) at least 40% of vinyl ester and/or (meth)acrylic ester units as the hydrophobic part of the molecule, (ii) 2.5-60% of polyalkylene glycol,alkoxylated alcohol, alkylphenol or amine, or 2-10C cpd. with 1-4 OH gps., when Mn of the polymers is not above 2500, as viscosity reducer, and (iii) 0-40% of homogenising or phase stabilising additive comprising (1) water, (2) an 8-25C mono- or di-basic acid, fatty alcohol sulph(on)ate, alkylbenzene sulphonate, sulphonation and/or sulphation prod. of 8-22C alkoxylated alcohol or alkylphenol, alkyl(poly)glucoside with 1-20C in the alkyl gp., mono-, oligo- or poly-saccharide or derivs. obtd. by oxidn. or redn., or (c) mixts. of (1) and (2) in ratio by wt. of 100:1-20:80.
-
公开(公告)号：AT159748T
公开(公告)日：1997-11-15
申请号：AT95110442
申请日：1995-07-05
Applicant: BASF AG
Inventor： BOECKH DIETER DR , SEELMANN-EGGEBERT HANS-PETER D , JAEGER HANS-ULRICH DR , KAHL ROLF-DIETER , SCHORNICK GUNNAR DR
Abstract: A low viscosity mixt. contains (i) 40-97.5 wt.% of amphiphilic nonionic graft polymer contg.(a) at least 20 wt.% of polyalkylene oxide units or polyvinylpyrrolidone units as the hydrophilic part of the molecule and (b) at least 40% of vinyl ester and/or (meth)acrylic ester units as the hydrophobic part of the molecule, (ii) 2.5-60% of polyalkylene glycol,alkoxylated alcohol, alkylphenol or amine, or 2-10C cpd. with 1-4 OH gps., when Mn of the polymers is not above 2500, as viscosity reducer, and (iii) 0-40% of homogenising or phase stabilising additive comprising (1) water, (2) an 8-25C mono- or di-basic acid, fatty alcohol sulph(on)ate, alkylbenzene sulphonate, sulphonation and/or sulphation prod. of 8-22C alkoxylated alcohol or alkylphenol, alkyl(poly)glucoside with 1-20C in the alkyl gp., mono-, oligo- or poly-saccharide or derivs. obtd. by oxidn. or redn., or (c) mixts. of (1) and (2) in ratio by wt. of 100:1-20:80.
-
公开(公告)号：DE19541699A1
公开(公告)日：1997-05-15
申请号：DE19541699
申请日：1995-11-09
Applicant: BASF AG
Inventor： KRONER MATTHIAS DR , BERTLEFF WERNER DR , SCHORNICK GUNNAR DR
Abstract: In preparation of polycondensates of aspartic acid by condensation of aspartic acid in an inert diluent in presence of acid catalysts and optionally co-condensable compounds at least 120 deg C, followed by hydrolysis of the polycondensates containing aspartimide units, the acid catalysts are contacted with aspartic acid heated to at least 120 deg C, the reactants are mixed, the water forming in the condensation is removed, and the polycondensates containing aspartimide units are separated.
-
公开(公告)号：DE19511859A1
公开(公告)日：1996-10-02
申请号：DE19511859
申请日：1995-03-31
Applicant: BASF AG
Inventor： KRONER MATTHIAS DR , SCHORNICK GUNNAR DR , BAUR RICHARD DR
Abstract: The invention concerns a method of preparing mixtures of alkali-metal salts of polyaspartic acids and alkali-metal salts of acylated polyaspartic acids by a) hydrolytically cleaving peptide bonds of polyaspartimides and/or polyaspartic acids with aqueous alkali-metal bases, a molar excess of at least one alkali-metal base being used per mole of aspartimide and/or aspartic acid units and b) reacting, in aqueous solution at pH values of 6 and over, the hydrolysis products with carboxylic acid chlorides, diketenes, carboxylic acid esters or caboxylic acid anhydrides or polymers which contain polymerized anhydride and/or ester groups. The invention also concerns the use of such mixtures as additives to phosphate-free and phosphate-reduced washing and cleaning agents.
-
公开(公告)号：DE19508655A1
公开(公告)日：1996-09-19
申请号：DE19508655
申请日：1995-03-13
Applicant: BASF AG
Inventor： DANISCH PETER , DIX JOHANNES PETER DR , DENZINGER WALTER , KISTENMACHER AXEL DR , KNEIP MICHAEL DR , MUELLER HANS-JOACHIM DR , ROESCH JOACHIM DR , SCHORNICK GUNNAR DR
IPC: C08F210/14 , C08F222/00 , C08F255/02 , C08F290/04 , C09B67/46 , C09D17/00 , C09K23/52 , C14C9/00 , C08F210/00 , B01F17/52 , C14C11/00
Abstract: The invention provides aqueous solutions or dispersions of copolymers obtained by copolymerising (a) 20 to 95 mol.% of at least one monoethylenically unsaturated C4-C12 dicarboxylic acid or its anhydride; (b) 5 to 80 mol.% of at least one branched chain oligomer or polymer with a vinyl, vinylidene or alkylvinylene end group made up of at least 9 C atoms; and (c) 0 to 50 mol.% of at least another monoethylenically unsaturated compound capable of being polymerised with monomers (a) and (b). These aqueous solutions or dispersions contain 0.5 to 70 % by weight of these copolymers in relation to their total weight. They are useful as leather auxiliary and pigment dispersing agents.
-
-
-
-
-
-
-
-
-
Search Results
90
records
(took 0.041 seconds)
