Patents Assigned to BASF
  • Method for the production of low-odor hydrogel-forming polymers
    Publication number: 20060036043
    Abstract: The present invention relates to a process for preparing a low-odor hydrogel-forming acrylic acid polymer, which comprises the steps of: a) preparing a polymeric hydrogel by free-radically polymerizing a monomer composition comprising at least 50% by weight of acrylic acid in an aqueous polymerization medium and converting said hydrogel into a particulate hydrogel or into hydrogel-forming powder; and optionally b) treating said particulate hydrogel or said hydrogel-forming powder with a crosslinking substance which, actually or latently, contain at least two functional groups capable of reacting with the carboxyl groups on the addition polymer; characterized by the acrylic acid used in step a) having a total acrylic acid oligomer content of less than 500 ppm, preferably not more than 400 ppm and especially not more than 300 ppm. Here and hereinafter, all ppm units are by weight based on acrylic acid.
    Type: Application
    Filed: December 8, 2003
    Publication date: February 16, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Gerhard Nestler, Klaus Muller-Engel, Stefan Wickel
  • Thermoplastic molding compositions
    Publication number: 20060036037
    Abstract: Thermoplastic molding compositions, comprising: A) at least one rubber-free copolymer in which no hydroxyl group, acid group, amino group, or anhydride group is present, based on at least one vinylaromatic monomer (a1) and at least one comonomer (a2), B) at least one rubber-free polymer in which at least one hydroxyl group, acid group, or amidno group is present, C) from 3 to 50% by weight, based on the total weight of the molding composition, of at least one rubber, D) at least one terpolymer, C)obtainable from d1) at least one vinylaromatic monomer, d2) at least one C1-C4-alkyl (meth)acrylate or (meth)acrylonitrile, and d3) from 0.4 to 4% by weight, based on the total weight of the teruolymer, of at least one monomer in which an ??-unsaturatedl anhydride is present, and E) at least one compound having at least two isocyanate groups.
    Type: Application
    Filed: December 13, 2003
    Publication date: February 16, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Martin Weber, Bernd Bruchmann, Hideko Oyama, Takashi Inoue, Toshiaki Ougizawa, Tomoki Kitagawa
  • Color management and solution distribution system and method
    Patent number: 6999615
    Abstract: A computer based system and method provides color solutions to a customer. A solution request from an operator located at a remote location is received and delivered to a central location over a computer network. A composite solution database is searched to determine a color solution as a function of the solution request.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: February 14, 2006
    Assignee: BASF Corporation
    Inventors: Craig J. McClanahan, James Soss
  • Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid
    Patent number: 6998026
    Abstract: A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be identical or different, are methyl or ethyl and R3 is H, methyl or ethyl, in homogeneous phase in the presence of an acidic catalyst and isolating the tert-C4–C8-alkyl (meth)acrylate from the reaction mixture, by a process in which the catalyst is separated off as residue by a two-stage distillation of the reaction mixture and the tert-C4–C8-alkyl (meth)acrylate is isolated from the distillates. The novel process makes it possible to use acetic acid-containing (meth)acrylic acid. The danger of cleavage of the ester and of polymerization of (meth)acrylic compounds is reduced.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Kroker, Gerhard Nestler, Werner Schmitt, Winfried Schumm
  • L-pantolactone-hydrolase and a method for producing D-pantolactone
    Patent number: 6998258
    Abstract: The present invention relates to proteins which have an enzymatic activity for hydrolyzing L-pantolactone. The invention further relates to nucleic acids which code for these proteins, to nucleic acid constructs, vectors, genetically modified microorganisms and to a process for preparing D-pantolactone.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: February 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Maria Kesseler, Bernhard Hauer, Thomas Friedrich, Ralf Mattes
  • Method for the catalytic gas phase oxidation of propene into acrylic acid
    Patent number: 6998504
    Abstract: A process for the catalytic gas-phase oxidation of propene to acrylic acid, in which the reaction gas starting mixture is oxidized, with a high propene loading, in a first reaction stage, over a first fixed-bed catalyst which is housed in two successive reaction zones A, B, the reaction zone B being kept at a higher temperature than the reaction zone A, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage, with a high acrolein loading, over a second fixed-bed catalyst which is housed in two successive reaction zones C, D, the reaction zone D being kept at a higher temperature than the reaction zone C.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: February 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Signe Unverricht, Heiko Arnold, Andreas Tenten, Ulrich Hammon, Hans-Peter Neumann, Klaus Harth
  • Aqueous, effect-producing coating material, method for the production thereof and use of the same
    Patent number: 6997980
    Abstract: An aqueous effect coating material comprising at least one water soluble or dispersible binder, at least one effect pigment, and a neutralized mixture of at least two fatty acids; process for its preparation, and its use in automotive OEM finishing, automotive refinish, the interior and exterior coating of constructions, the coating of doors, windows and furniture, and also industrial coating, including coil coating, container coating, and the coating of electrical components.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 14, 2006
    Assignee: BASF Coatings AG
    Inventors: Egon Wegner, Frank Jansing
  • Thin layer catalysts based on Raney alloys, and method for the production thereof
    Patent number: 6998366
    Abstract: Raney alloy catalysts applied to a support are described, said catalysts having an extremely thin layer of Raney alloy with a thickness of 0.01 to 100 ?m. These catalysts are prepared by vapor deposition of the appropriate metals under reduced pressure. They are generally suitable for all known hydrogenation and dehydrogenation reactions and are extremely abrasion-resistant.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: February 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Mathias Haake, Gerhard Dörsam, Helmut Boos
  • Method for desulphurizing acid gases using catalysts that are insensitive to oxidation and contain aminocarboxylate
    Patent number: 6998099
    Abstract: A process is described for the catalytic removal of H2S gas from a sour gas stream in the presence of a chelate ligand of the formula (I) where: X is hydrogen, an alkali metal or NH4+, n is 1, 2 or 3, and at least one of the radicals R1 to R6 is alkyl, aryl, alkyloxy, aryloxy, carboxyl or hydroxyl, the remaining radicals being hydrogen, and the metal in the metal chelate complex is a polyvalent metal, which can occur in more than one oxidation state. A mixture is also described for removing H2S gas from a sour gas stream, the mixture comprising an aminocarboxylate-containing metal chelate complex, and the use is also described of an aminocarboxylate-containing metal chelate complex for removing H2S gas from a sour gas stream.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: February 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hesse, Hans-Ulrich Jäger
  • Backmolded plastic moldings
    Publication number: 20060029809
    Abstract: Described is a backmolded plastic molding comprising a polymer backmolding film backmolded by injection molding or casting with a fiber reinforced plastic having a fiber content of from 5 to 30%, the film having a thickness of from 0.5 to 1.0 mm and the backmolding material having a thickness of from 1.5 to 4.5 mm.
    Type: Application
    Filed: September 26, 2005
    Publication date: February 9, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Achim Grefenstein, Manfred Knoll
  • Enzymatic synthesis of polyol acrylates
    Publication number: 20060030013
    Abstract: The invention relates to a process for the enzymatic synthesis of polyol acrylates and also to a process for preparing polymeric polyol acrylates, to the polymers obtainable by this process, and to their use for preparing radiation-curable and thermally curable coating materials.
    Type: Application
    Filed: November 21, 2003
    Publication date: February 9, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang Paulus, Bernhard Hauer, Dietmar Haring, Frank Dietsche
  • Preparation of (meth)acrylic esters
    Publication number: 20060030728
    Abstract: A process for inhibiting polymerization in the preparation of (meth)acrylic esters of C1-C8-alcohols, wherein the pH of the water of reaction supplied to the C1-C8-alcohol recovery is greater than 7.
    Type: Application
    Filed: July 11, 2005
    Publication date: February 9, 2006
    Applicant: BASF Aktiengesellschaft
    Inventor: Jurgen Schroeder
  • Clearcoat composition for primerless MVSS adhesion
    Patent number: 6995208
    Abstract: The invention provides a clearcoat coating composition containing either one acrylic polymer with secondary hydroxyl functionality and carbamate functionality or two acrylic polymers, the first having secondary hydroxyl functionality and the second having carbamate functionality; a carbamate-functional or urea-functional material that is the reaction product of (1) a compound comprising a primary carbamate or primary urea group and an hydroxyl group and (2) a compound that is reactive with hydroxyl groups on a plurality of molecules of compound (1), but that is not reactive with the carbamate or urea groups on compound (1); and a crosslinking component including an aminoplast crosslinker. A windshield sealant can be applied directly to the clearcoat layer produced from the composition without the need for a special primer layer.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: February 7, 2006
    Assignee: BASF Corporation
    Inventors: Sanjay Mehta, David J. Santure, John A. Gilbert
  • Stabilizers, in particular for thermoplastic polyurethanes
    Patent number: 6995230
    Abstract: The invention relates to stabilizers containing at least two phenolic groups bonded to one another via a connecting radical (II) which is a polyol with a number-average molecular weight of from 75×F g/mol to 250×F g/mol, preferably from 100×F g/mol to 200×F g/mol, in particular from 100×F g/mol to 150×F g/mol, where the term F is the number of phenolic groups in the molecule.
    Type: Grant
    Filed: July 4, 2001
    Date of Patent: February 7, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Hauke Malz, Thomas Flug, Peter Böhme, Markus Kamieth
  • Process for preparing alkylboronic esters
    Publication number: 20060025623
    Abstract: Process for preparing an alkylboronic ester (alkylboronic ester I), which comprises reductively coupling an alkyl chloride, bromide or iodide (alkyl halide compound II) with a boric ester or a boronic ester (bor(on)ic ester III) or a 1,1,2,2-tetraalkoxydiborane (tetraalkoxydiborane IV) by electrochemical means.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 2, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Ulrich Griesbach, Oliver Elsner
  • Aqueous composition and use thereof for paper production
    Publication number: 20060024262
    Abstract: The present invention relates to an aqueous composition comprising at least one finely divided filler and at least one water-soluble amphoteric copolymer, a process for the preparation of such a composition and its use as an additive in the production of paper, cardboard and board.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 2, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Hans-Joachim Hahnle, Anton Esser, Volker Braig, Rainer Blum, Peter Baumann, Jacques Dupuis, Josef Neutzner
  • Polymerizing hydrogels including modifying compounds to comprise low amount of residual monomers and by-products and to optimize material properties
    Publication number: 20060025521
    Abstract: The present invention relates to polymerized hydrogels and processes to make such hydrogels, in particular hydrogel adhesives which are capable of attaching to mammalian skin and can be used in various personal care products, such as waste-management articles, and a variety of functional articles to be worn by a human. The hydrogels described herein are characterized by very low amount of residual starting monomers, impurities, and/or by-products that could be formed during polymerization. Specifically, the hydrogels are made by adding scavengers and/or chain transfer agent prior to polymerization. It has been found, that upon addition of same scavengers the material properties of the polymerized hydrogel differ from the properties of gels polymerized without the scavenger. This is due to the fact, that these specific scavengers act also as chain transfer agents in the radical polymerization.
    Type: Application
    Filed: June 20, 2003
    Publication date: February 2, 2006
    Applicant: BASF AKTIENGESELLSCHAFT A German Corporation
    Inventors: Volker Frenz, Felix Gorth, Oskar Stephan, Christian Weidl, Steven Merrigan, Wolfgang Huhn, Stephen Goldman, Martin Beck
  • Method for the production of synthetic hydrocarbons
    Publication number: 20060025643
    Abstract: The present invention relates to a process for preparing synthetic hydrocarbons which comprises the oligomerization of 1-olefins having from 8 to 30 carbon atoms.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 2, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Hans Rath, Arno Lange, Helmut Mach
  • System and method for converting a color formula using an artificial intelligence based conversion model
    Patent number: 6993512
    Abstract: A system and method for converting a color formula from compositions such as paints, pigments, or dye formulations, is provided. The input to the system is a first color formula. The system includes an input device for entering a plurality of color formula values and an artificial intelligence conversion model coupled to the input device. The conversion model produces an output signal for communicating a second color formula. The artificial intelligence model may be embodied in a neural network. More specifically, the conversion model may be a back propagation neural network.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: January 31, 2006
    Assignee: BASF Corporation
    Inventor: Craig J. McClanahan
  • Use of carbamate-modified aminoplast resins to improve the appearance and performance of powder coatings
    Patent number: 6992149
    Abstract: A powder coating composition comprising at least about 0.1% by weight of a reaction product of an aminoplast and a compound having one carbamate group has improved smoothness.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: January 31, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Thomas S. Richards, Timothy S. December, James A. Laugal