Next To Animal Skin Or Membrane Patents (Class 428/423.4)
  • Patent number: 10654796
    Abstract: Provided is a method capable of preparing high-purity aliphatic isocyanate, particularly, xylylene isocyanate in a high yield in a simple manner without an additional separate process, wherein when aliphatic isocyanate is prepared using phosgene, a side-reaction inhibitor capable of inhibiting side-reactions is introduced during phosgenation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 19, 2020
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ju Young Park, Cho Hee Ahn, Seung Won Chae, Jeon Sik Kim, Sang Hyun Cho
  • Patent number: 10611724
    Abstract: Provided is a method capable of preparing high-purity aliphatic isocyanate, particularly, xylylene isocyanate in a high yield in a simple manner without an additional separate process, wherein when aliphatic isocyanate is prepared using phosgene, a side-reaction inhibitor capable of inhibiting side-reactions is introduced during phosgenation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 7, 2020
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ju Young Park, Cho Hee Ahn, Seung Won Chae, Jeon Sik Kim, Sang Hyun Cho
  • Patent number: 10287447
    Abstract: An example of a radiation curable binder dispersion for an inkjet ink includes water and a radiation curable polyurethane dispersed in the water. The radiation curable polyurethane has a weight average molecular weight that is equal to or less than 5,000, a glass transition temperature (Tg) less than 25° C., and a double bond density higher than 4.0. The radiation curable polyurethane binder dispersion is formed from a non-aromatic diisocyanate; a polyol; an acrylate or methacrylate, the acrylate or methacrylate having at least two hydroxyl functional groups and having an acrylate functional group or a methacrylate functional group; a compound including i) an ionic group or ii) a group to form an ionic group; and another acrylate or methacrylate, the other acrylate or methacrylate having a hydroxyl functional group or an amino functional group.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: May 14, 2019
    Assignee: Hewiett-Packard Development Company, L.P.
    Inventors: Tienteh Chen, Bin Huang, Gregg A. Lane
  • Patent number: 9072334
    Abstract: A coated leather, in particular split cowhide leather, has a preferably nubuck-like appearing surface structure. The coating is formed with a surface layer formed with a mechanically and moisture-stable polymer and bonded to the surface of the leather or split leather by a polymer-based bonding layer. The outer layer is notable for inner smoothness and is formed with soft polyurethane. It includes in the non-embossed region microdepressions which are essentially closed in the direction of the leather but are open towards the outside, have an internal width of less than 130 ?m and are arranged close-packed to each other in the manner of soapy foam cells. The microdepressions are each separately bounded by thin mutually crosslinked stays which have on the outside a matt or finely fibrous fine-roughness structure surface, and have an essentially semispherical-shaped concave inner surface which faces outward and is smooth.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 7, 2015
    Assignee: LANXESS DEUTSCHLAND GMBH
    Inventor: Philipp Schaefer
  • Patent number: 9006304
    Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions which stabilize a foam—produced by mechanical expansion—without addition of further foam-stabilizing components in such a way that aqueous foams are obtainable which are stable both during temporary storage and during processing, so that they can be applied in the form of foam also by customary application methods and substantially retain the foam structure even after drying.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 14, 2015
    Assignee: Stahl International B.V.
    Inventor: Juergen Muenter
  • Patent number: 8846198
    Abstract: The present invention relates to aqueous compositions based on crystalline or semicrystalline polyurethane polymers, processes for the preparation thereof and adhesive systems comprising these aqueous compositions and the use thereof.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: September 30, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Jörg Büchner, Dirk Achten, Harald Kraus, Wolfgang Arndt
  • Publication number: 20140242397
    Abstract: The present invention discloses an environmentally-friendly polyurethane matting and a method of production thereof. The environmentally-friendly polyurethane matting comprises a leather surface, a polyurethane middle layer and an anti-slip leather bottom layer. The present invention is applied with the polyurethane instead of silica gel. The polyurethane avoids oil seepage when the matting is used, as is therefore environmentally-friendly fire proof, and safe. The elasticity and other performance of the polyurethane are hardly changed during usage, and environmentally-friendly polyurethane matting provides comfort and enhances the tactile feeling when people standing on the matting. Further, the matting has a long service life.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 28, 2014
    Inventor: Xiangyang LU
  • Publication number: 20140147632
    Abstract: The present invention relates to a process for the production of aqueous polyurethane-polyurea dispersions for which A) firstly A1) primary and/or secondary monoamines or diamines are reacted with A2) cyclic carbonates which contain precisely one hydroxy group, where the molar ratio of A1) and A2) is such that in the case of monoamines A1) the theoretical ratio of the entirety of the primary and secondary amine groups to the cyclic carbonate groups is from 0.8 to 1.2 and in the case of diamines A1) the theoretical ratio of the entirety of the primary and secondary amine groups to the cyclic carbonate groups is from 1.8 to 2.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 29, 2014
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventor: Juergen Muenter
  • Patent number: 8470444
    Abstract: Non aqueous water dispersible compositions comprising: I) polyisocyanates, which are made hydrophilic by reaction with a 1,3- or 1,2-nonionic diol containing one alkoxy-terminated polyoxyethylene and/or polyoxypropylene chain, II) one or more ethoxylated alcohol phosphates having at least one phosphoric group in acid form, and optionally III) a water miscible organic solvent, the compositions being useful as crosslinker for polyurethane aqueous dispersions.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: June 25, 2013
    Assignee: Lamberti SpA
    Inventors: Gabriele Costa, Mauro Mapelli, Giuseppe Li Bassi
  • Publication number: 20130122223
    Abstract: A compressible substrate coated at least in part with a waterborne coating composition comprising at least one base neutralized active hydrogen containing film-forming resin and a water dispersible carbodiimide crosslinker capable of reacting with the film-forming resin to form a crosslinked film is disclosed. An article of manufacture having at least two different flexible substrates coated at least in part with such a coating is also disclosed.
    Type: Application
    Filed: January 7, 2013
    Publication date: May 16, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventor: PPG Industries Ohio, Inc.
  • Patent number: 8426022
    Abstract: A coated leather, in particular split cowhide leather, has a preferably nubuck-like appearing surface structure. The coating is formed with a surface layer formed with a mechanically and moisture-stable polymer and bonded to the surface of the leather or split leather by a polymer-based bonding layer. The outer layer is notable for inner smoothness and is formed with soft polyurethane. It includes in the non-embossed region microdepressions which are essentially closed in the direction of the leather but are open towards the outside, have an internal width of less than 130 ?m and are arranged close-packed to each other in the manner of soapy foam cells. The microdepressions are each separately bounded by thin mutually crosslinked stays which have on the outside a matt or finely fibrous fine-roughness structure surface, and have an essentially semispherical-shaped concave inner surface which faces outward and is smooth.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 23, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventor: Philipp Schaefer
  • Publication number: 20130078474
    Abstract: The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, where A) first a polyurethane prepolymer containing NCO groups is produced by reacting A1) polyisocyanates with A2) polymeric polyols and/or polyamines having number-average molecular weights of more than 400 to 8,000 g/mol, A3) possibly low-molecular-weight compounds having number-average molecular weights of 17-400 g/mol selected from the group comprising mono- and polyalcohols, mono- and polyamines, and amino alcohols, A4) isocyanate-reactive, ionically or potentially ionically hydrophilic compounds and/or isocyanate-reactive non-ionically hydrophilic compounds, A5) isocyanate-reactive compounds, which contain at least one C7 to C24 alkyl group or C7 to C24 alkenyl group, and A6) isocyanate-reactive compounds, which contain at least one polysiloxane group, and B); the NCO groups of the prepolymer that are not yet free are reacted with isocyanate-reactive monoamines, polyamines, hydrazine, and/or hydrazides, dimension
    Type: Application
    Filed: April 27, 2011
    Publication date: March 28, 2013
    Applicant: Clariant Finance (BVI) Limited
    Inventors: Juergen Muenter, Thomas Fischer
  • Publication number: 20110236667
    Abstract: The invention relates to new aqueous polyurethane-modified alkyd resin dispersions, to their preparation and use as binders in paints and coatings.
    Type: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Harald Blum, Rolf Gertzmann, Christoph Irle, Maria Almato Guiteras, Juan Miguel Garcia Martinez
  • Publication number: 20110200820
    Abstract: A composition which provides surface effects to substrates comprising a polymer containing at least one urea linkage prepared by (i) reacting (1) at least one organic diioscyanate, polyisocyanate, or mixture thereof, and (2) at least one fluorochemical compound of Formula I Rf—O(CF2CF2)r(CH2CH2)q(R1)sXH??Formula (I) wherein Rf is a linear or branched C1 to C7 perfluoroalkyl optionally interrupted by one to three oxygen atoms, r is 1 to 3, q is 1 to 3, s is 0 or 1, X is O, S, or NR2 wherein R2 is H, or C1 to C6 alkyl, and R1 is a divalent radical selected from —S(CH2)n—, p is 1 to 50, and R3, R4 and R5 are each independently H or C1 to C6 alkyl; (ii) and then reacting with (3) water, a linking agent, or a mixture thereof.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: SHENG PENG, Stephen James Getty, Timothy Edward Hopkins, Ying Wang
  • Publication number: 20110111657
    Abstract: A coated substrate comprises a substrate and a coating on at least one surface of the substrate. The coating comprises a prepolymer, polymer, or resin produced, for example, by the reaction of (i) an isocyanate (e.g., a polyisocyanate), (ii) an active hydrogen-terminated colorant, and optionally (iii) at least one reactant selected from the group consisting of chain extenders, polyols, internal surfactants, and combinations thereof. Polymer dispersions suitable for use in making such coated substrates comprise such a prepolymer, polymer, or resin.
    Type: Application
    Filed: January 17, 2011
    Publication date: May 12, 2011
    Inventors: Jusong Xia, Zhaolin Zhou, Kirkland W. Vogt, Philip G. Harris
  • Publication number: 20110052903
    Abstract: A water dilutable UV-curable polyurethane containing alkylene oxide groups, the polyurethane being obtained from components comprising at least: (i) 1 to 25 wt. % of at least one polyisocyanate; (ii) 0 to 80 wt. % of at least one hydroxyl functional compound containing alkylene oxide groups; (iii) 10 to 90 wt. % of at least one hydroxyl functional compound containing at least one polymerisable unsaturated (meth)acryloyl functional group per molecule; and (iv) 0 to 50 wt. % of at least one isocyanate-reactive compound not comprised by (ii) or (iii); wherein the sum of (i) to (iv) is 100%.
    Type: Application
    Filed: January 29, 2009
    Publication date: March 3, 2011
    Inventors: Josephus Christian Van Oorschot, Ronald Tennebroek, Roel Johannes Marinus Swaans, Marc Roelands
  • Patent number: 7872069
    Abstract: A coated substrate comprises a substrate and a coating on at least one surface of the substrate. The coating comprises a prepolymer, polymer, or resin produced, for example, by the reaction of (i) an isocyanate (e.g., a polyisocyanate), (ii) an active hydrogen-terminated colorant, and optionally (iii) at least one reactant selected from the group consisting of chain extenders, polyols, internal surfactants, and combinations thereof. Polymer dispersions suitable for use in making such coated substrates comprise such a prepolymer, polymer, or resin.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 18, 2011
    Assignee: Milliken & Company
    Inventors: Jusong Xia, Zhaolin Zhou, Kirkland W. Vogt, Philip G. Harris
  • Publication number: 20100310882
    Abstract: This invention provides a natural leather having a coating film as a topcoat layer that can suppress and prevent the occurrence of an uncomfortable squeak noise and, at the same time, has softer feeling, soft and smooth feeling, and slick feeling, a composition for the formation of a coating film on a natural leather, and a process for producing a natural leather.
    Type: Application
    Filed: December 26, 2008
    Publication date: December 9, 2010
    Applicant: MIDORI HOKUYO CO., LTD.
    Inventors: Masahiko Ogawa, Miwa Tada
  • Publication number: 20100279568
    Abstract: Water-emulsifiable polyisocyanate compositions admixed with at least one solvent of formula (1) (R1O)2C(R2)—X—R3 are formulated into aqueous emulsions which advantageously further comprise a compound, bearing a mobile hydrogen function, or a compound containing precursor functions capable of liberating hydroxyl functions, and are useful for producing coatings on a variety of substrates, e.g., made of cement, wood or leather in particular, and also for producing adhesives.
    Type: Application
    Filed: March 27, 2007
    Publication date: November 4, 2010
    Inventor: Damien Bourgeois
  • Publication number: 20100209714
    Abstract: Non aqueous water dispersible compositions comprising: I) polyisocyanates, which are made hydrophilic by reaction with a 1,3- or 1,2-nonionic diol containing one alkoxy-terminated polyoxyethylene and/or polyoxypropylene chain, II) one or more ethoxylated alcohol phosphates having at least one phosphoric group in acid form, and optionally III) a water miscible organic solvent, the compositions being useful as crosslinker for polyurethane aqueous dispersions.
    Type: Application
    Filed: July 23, 2008
    Publication date: August 19, 2010
    Inventors: Gabriele Costa, Mauro Mapelli, Giuseppe Li Bassi
  • Patent number: 7754092
    Abstract: A composition comprising a mixture of at least one soil resist agent and at least one additive which is maleic anhydride, and a method of providing soil resistance to fibrous substrates are disclosed.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: July 13, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Joyce Monson Materniak, Edward Patrick Carey
  • Patent number: 7709589
    Abstract: The invention relates to high-reactivity polyurethane compositions. The invention further relates to low temperature curable polyurethane compositions which contain uretdione groups, particularly useful for polyurethane powder coating compositions and adhesive compositions, and to processes for preparing and using the same.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: May 4, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Emmanouil Spyrou, Holger Loesch, Dirk Hoppe
  • Publication number: 20100098950
    Abstract: The invention relates to radiation-curable compounds, to processes for preparing them, to their use, and to coating compositions comprising them and featuring high scratch resistance.
    Type: Application
    Filed: October 8, 2007
    Publication date: April 22, 2010
    Inventors: Nick Gruber, Reinhold Schwalm, Osar Lafuent Cerda, Frank Voellinger, Cabrile Dlugosch, Erich Beck, Klaus Menzel, Susanne Neumann
  • Publication number: 20100015430
    Abstract: An article having reversible thermal regulation properties comprises a substrate and a functional polymeric phase change material having a heat carrying capacity. The article is further characterized by a chemical function having moisture adsorbing properties that increase the heat carrying capacity.
    Type: Application
    Filed: June 17, 2009
    Publication date: January 21, 2010
    Applicant: OUTLAST TECHNOLOGIES, INC.
    Inventors: Mark Hartmann, Aharon Eyal
  • Publication number: 20100009582
    Abstract: The present invention relates to polyurethane ureas dissolved in organic solvents, which may be used as an adhesive coat for the coating of textiles.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Jüergen Köcher, Thorsten Rische, Juergen Urban, Eva Urban, Anne Urban, Holger Casselmann, Thomas Feller
  • Patent number: 7576137
    Abstract: A polyurethane molding is composed of at least two different polyurethane materials, namely of a polyurethane gel and a polyurethane foam. The foam and the gel are arranged in layers one above another so that both materials act together as spring or damping element with respect to a load in the transverse direction. These moldings may preferably be used as seat cushions.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: August 18, 2009
    Assignee: Technogel GmbH & Co. KG
    Inventors: Peter Gansen, Massimo Losio
  • Publication number: 20090130429
    Abstract: A leather finishing process in which, in pertinent part, a warm water milling step is added after the base coat is applied to “crust” leather and cured. The warm water contains at least one dye fixation agent including but not limited to about 0.1-2.0% by weight of formic acid. Moreover, the base coat itself is an aqueous base coat containing at least two polymers such as an acrylic salt or a polyurethane salt. Between the polymeric constituents of the base coat, the acid fixation agent, and the use of the warm water milling step after the base coat has been applied and dried, a surprisingly natural feel to the leather is attained without loss of excellent adhesion, wear-resistance and other properties when the leather is completely finished.
    Type: Application
    Filed: January 28, 2009
    Publication date: May 21, 2009
    Applicant: Seton Company
    Inventor: Hermann Winkler
  • Publication number: 20080305342
    Abstract: The present invention relates to polyurethane dispersions comprising polysiloxane building blocks reactive towards isocyanates and processes for using their preparation and their use in coating leather.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 11, 2008
    Inventors: Juergen Reiners, Tillmann Hassel, Gerald Kurek
  • Publication number: 20080261052
    Abstract: A coated substrate comprises a substrate and a coating on at least one surface of the substrate. The coating comprises a prepolymer, polymer, or resin produced, for example, by the reaction of (i) an isocyanate (e.g., a polyisocyanate), (ii) an active hydrogen-terminated colorant, and optionally (iii) at least one reactant selected from the group consisting of chain extenders, polyols, internal surfactants, and combinations thereof. Polymer dispersions suitable for use in making such coated substrates comprise such a prepolymer, polymer, or resin.
    Type: Application
    Filed: March 21, 2007
    Publication date: October 23, 2008
    Inventors: Jusong Xia, Zhaolin Zhou, Kirkland W. Vogt, Philip G. Harris
  • Publication number: 20080160320
    Abstract: The present invention relates to free-radically curable coating compositions, to methods of curing such coating compositions, and to their use.
    Type: Application
    Filed: March 3, 2006
    Publication date: July 3, 2008
    Applicant: Basf Aktiengesellschaft
    Inventors: Erich Beck, Reinhold Schwalm, Katia Studer, Phuong Nguyen Tri, Christian Decker
  • Publication number: 20080113198
    Abstract: Novel leather articles comprise a substrate and a coating applied to a surface of the substrate. The coating comprises a prepolymer or resin. The prepolymer or resin can be produced, for example, by the reaction of (i) an isocyanate, (ii) at least one reactant selected from the group consisting of chain extenders, polyols, and combinations thereof, and (iii) an active hydrogen-terminated colorant. The active hydrogen-terminated colorant comprises a chromophore and an active hydrogen-terminated constituent bound to the chromophore. Novel methods for producing leather articles using active hydrogen-terminated colorants are also provided.
    Type: Application
    Filed: November 10, 2006
    Publication date: May 15, 2008
    Inventor: Jusong Xia
  • Publication number: 20080113199
    Abstract: A composition which provides surface effects to substrates comprising a polymer containing at least one urea linkage prepared by (i) reacting (1) at least one organic diioscyanate, polyisocyanate, or mixture thereof, and (2) at least one fluorochemical compound of Formula I Rf—O(CF2CF2)r(CH2CH2)q(R1)sXH ??Formula (I) wherein Rf is a linear or branched C1 to C7 perfluoroalkyl optionally interrupted by one to three oxygen atoms, r is 1 to 3, q is 1 to 3, s is 0 or 1, X is O, S, or NR2 wherein R2 is H, or C1 to C6 alkyl, and R1 is a divalent radical selected from —S(CH2)n—, p is 1 to 50, and R3, R4 and R5 are each independently H or C1 to C6 alkyl; (ii) and then reacting with (3) water, a linking agent, or a mixture thereof.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 15, 2008
    Inventors: Sheng Peng, Stephen James Getty, Timothy Edward Hopkins, Ying Wang
  • Patent number: 7223478
    Abstract: Aqueous polyurethane formulations, their use and substrates which are coated with such formulations are described.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: May 29, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Treiber, Karl Haeberle, Klaus Dieter Hoerner, Rudolf Bingemann, Bruno Hofer
  • Patent number: 7097909
    Abstract: The present invention relates to a specific process in which wool is initially subjected to a plasma treatment and then to a wet chemical treatment with a finishing agent, which provides nonfelting wool in a technically simple and easily handleable manner.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: August 29, 2006
    Assignee: LANXESS Corporation
    Inventors: Bernhard Jansen, Ferdi Kümmeler, Ralf Heinen
  • Patent number: 7063892
    Abstract: An aromatic liquid-crystalline polyester having a small dielectric loss in a wide frequency region is provided. An aromatic liquid-crystalline polyester is provided that can manufacture a film having a small volume expansion by heating. An aromatic liquid-crystalline polyester substantially comprising a repeating structural unit originating in 2-hydroxy-6-naphthoic acid 30 to 80 mol %, a repeating structural unit originating in aromatic diol 35 to 10 mol %, and a repeating structural unit originating in aromatic dicarboxylic acid 35 to 10 mol %.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: June 20, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Okamoto, Tomoya Hosoda, Shinji Ohtomo
  • Patent number: 6932882
    Abstract: A multi-layer application film formed by laminating at least two resin films, a top layer film (I) being formed from a crosslinkable resin coating composition (A), an under layer film (II) being formed from a thermoplastic resin (B), showing practically no stickiness per se, and having a tensile elongation at breakage in the range of 50 to 1000%, said multi-layer application film being applied onto a plastic substrate.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: August 23, 2005
    Assignee: Kansai Paint Co., LTD
    Inventors: Naoya Haruta, Takeshi Tomiyama, Toshio Kondo, Yu Akaki, Osamu Isozaki
  • Patent number: 6875243
    Abstract: Catalysts and processes for preparing polyisocyanates containing isocyanurate groups, and their use, wherein the catalysts are represented by the following formula (1): [Hl?Xm?Fn?]p·[R(4?q)Si(NR1R2)q]r??(I), wherein n=m+l with 1?m/n>0, and l?0, p>0 and r>0, and the ratio p/r is any value, q=1 or 2, and R, R1, R2 and X are as defined.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: April 5, 2005
    Assignee: Degussa AG
    Inventors: Michael Ewald, Manuela Windmueller, Waltraud Poersch, Stephan Kohlstruk
  • Patent number: 6806340
    Abstract: Polyurethane coatings which are the reaction product of A) an aliphatic, isocyanate-containing prepolymer having an isocyanate content of 1-8 wt. % and a free monomeric diisocyanate content of less than 2 wt. %, and containing 0.1 to 1.5 moles of per 1000 g of prepolymer of aliphatically bound uretdione and oxadiazinetrione groups, and B) a polyol component B) comprising at least 50 equivalent % of a compound corresponding to the formula HO—X—Y—X—OH where Y represents methylene, ethylene, —C≡C—, cyclohexylene-1,4, -1,3, -1,2, or phenylene-1,4, -1,3, -1,2 and X represents methylene, —OCH2CH2— (the oxygen being bound to the Y), or cyclohexylene-1,4, -1,3, -1,2, and where the equivalent ratio of the free NCO groups to isocyanate-reactive groups is 0.90 to 1.5. The coatings are applied to flexible substrates such as textile or leather by the casting or knife coating process by means of reactive compositions.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 19, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stefan Groth, Detlef-Ingo Schütze
  • Patent number: 6762241
    Abstract: The invention relates to polyurethane solutions with alkoxysilane structural units, processes for the preparation of polyurethane solutions containing alkoxysilane structural units and the use of polyurethane solutions containing alkoxysilane structural units.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: July 13, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Blum, Detlef-Ingo Schütze
  • Patent number: 6746774
    Abstract: In order to provide leather with the desired cushioning properties and desirable soft handling properties, especially a grained leather with a grain structure on its upper surface, or a split leather with a surface finish, even if this leather is of minimal thickness, a foam layer is created on the non-visible underside surface of the leather. This foam layer is formed by applying a liquid plastic material containing means to create the foam and is subsequent solidified by removal of the solvent.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: June 8, 2004
    Inventor: Philipp Schaefer
  • Patent number: 6733877
    Abstract: In order to create a full grain napa cowhide which exhibits the characteristics with respect to grain pipeyness and water vapor permeability that are required by the automotive and upholstery industries, a finish is applied to the grain side of the full grain leather. The finish includes a pigmented layer with a thickness of between 0.015 mm and 0.04 mm and is formed of a stabilized polyurethane and/or polyacrylate dispersion. The dispersion contains microspheres with a diameter of less than 45 &mgr;m, which form primarily closed cells, and at least 10% open cells by volume. The top side of the layer is provided with a napa embossing. A second layer, placed on the first layer, is formed from a cross-linked polyurethane-based varnish application containing a dulling agent. The leather undergoes a milling treatment.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: May 11, 2004
    Inventor: Philipp Schaefer
  • Patent number: 6642342
    Abstract: The present invention relates to thermosetting two-component coating compositions containing A) at least one NCO prepolymer, B) at least one amine-free chain extender, C) at least one catalyst selected from metal 1,3-dicarbonylates and metal-oxo 1,3-dicarbonylates, wherein i) the metal 1,3-dicarbonylate contains as a neutral complex a metal cation with the electron configuration d0 of sub-group 3 or a lanthanide and ii) the metal-oxo 1,3-dicarbonylate contains a metal-oxo cation of sub-group 6 with the electron configuration d0. The present invention also relates to a process for preparing these coating compositions and to coated substrates prepared therefrom.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: November 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Ludewig, Christoph Gürtler, Detlef-Ingo Schütze
  • Publication number: 20030194565
    Abstract: A full-grained milled napa leather is provided on its grain side with a dressing formed from a solidified plastics dispersion. Required leather properties are still ensured and the production process is substantially simplified and more economical. First, the leather, such as cowhide, is subjected on a mechanically untreated grain side to a milling process for at least two hours. This results in a typical napa structure with a natural pebbled grain. Then, a polyurethane dispersion is applied to the grain side containing pigment particles and optionally further additives. Then the hide is allowed to dry. The solidified dispersion forming the dressing has a thickness of, preferably, from 0.05 mm to 0.07 mm.
    Type: Application
    Filed: November 21, 2002
    Publication date: October 16, 2003
    Inventor: Philipp Schaefer
  • Patent number: 6627306
    Abstract: A soft elastic cushion for use in conjunction with an orthopedic aid has a textile composite comprising at least two layers arranged on the soft elastic cushion. It is possible in this way to secure a textile cover on a soft elastic substrate such as silicone.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: September 30, 2003
    Assignee: Thämert Orthopädische Hilfsmittel GmbH & Co. KG
    Inventor: Reinhold Schneider-Nieskens
  • Patent number: 6599977
    Abstract: The present invention relates to a process for the preparation of an aqueous dispersion of an anionic polyurethane. According to the invention, a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent. The process of the invention comprises the steps of: dispersion of an anionic isocyanate functional polyurethane prepolymer in water in the presence of a tertiary amine functional urethane polymer or oligomer and chain extension of the anionic polyurethane prepolymer with a reactive hydrogen functional material during or after the dispersion in water.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: July 29, 2003
    Assignee: Stahl International B.V.
    Inventors: Laurentius Cornelius Josephus Hesselmans, Josep Oller Chirivella
  • Patent number: 6599629
    Abstract: Coated natural leather, prepared from natural leather having polyurethane coated on its flesh side and having an improved (decreased) measure of deformation, is provided.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: July 29, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Yery A. Mendoza, Eleni Karayianni
  • Publication number: 20030012960
    Abstract: Coated natural leather, prepared from natural leather having polyurethane coated on its flesh side and having an improved (decreased) measure of deformation, is provided.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 16, 2003
    Inventors: Yery A. Mendoza, Eleni Karayianni
  • Patent number: 6479612
    Abstract: A polymer having at least one urea linkage derived by contacting (1) at least one polyisocyanate, or mixture of polyisocyanates, (2) at least one fluorocarbon alcohol, fluorocarbon thiol or fluorocarbon amine, (3) at least one straight or branched chain alcohol, amine or thiol, and (4) at least one alcohol containing a sulfonic acid group or its salt, and then (5) optionally at least one linking agent useful for imparting oil repellency and water repellency to substrates.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: November 12, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Wayne Del Pesco, Jack Kirchner, Andrew H. Liu
  • Patent number: 6465539
    Abstract: The invention relates to an elastic coating system with which dry surfaces can be formed by UV curing of constituents containing (meth)acryloyl groups and by subsequent crosslinking of constituents containing NCO groups with constituents containing active hydrogen. The invention also relates to their use of this coating, system for coating, inter alia, components of plastic.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: October 15, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jan Weikard, Wolfgang Fischer, Claus Kobusch, Wolfram Küttner
  • Patent number: 6384131
    Abstract: Compositions containing polyurethane dispersions and water reducible resins particularly suited for use as basecoats in low VOC basecoat/clearcoat vehicle coatings.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: May 7, 2002
    Assignee: The Sherwin-Williams Company
    Inventors: Layton F. Kinney, Sharon K. Golas