Patents Examined by Rachel Gorr
  • Patent number: 7214757
    Abstract: Disclosed herein are polyurethane elastomers and shaped articles prepared therefrom comprising charge-control agents to provide electrical conductivity to the elastomers, thereby allowing for their use in electrophotographic processes. The elastomers comprise a polyisocyanate prepolymer, a polyether prepolymer, and a hardener mixture comprised of at least one additional polyol and a charge-control agent. When used in an electrophotographic process, the elastomers are capable of exhibiting resistivities of less than 6×109 ohm-cm for 600,000 images or more.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: May 8, 2007
    Assignee: Eastman Kodak Company
    Inventors: Paul Gloyer, Alan Priebe, George R. Walgrove, III, M. Cristina DeJesus, William B. Vreeland
  • Patent number: 7205374
    Abstract: A method of preparing an adhesive, the method comprising combining an isocyanate, a polyhydroxyl phenol-containing compound, a polyol, and a trimerization catalyst.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: April 17, 2007
    Assignee: BFS Diversified Products, LLC
    Inventors: John W. Fieldhouse, Joseph J. Kalwara, Edward G. Kane, John B. Letts
  • Patent number: 7196154
    Abstract: One embodiment of the invention is a composition adapted for coating goods comprising a polyisocyanate component and a polyisocyanate reactive component further comprising a polyaspartic ester and cycloaliphatic amine. Another embodiment of the invention is a method for coating goods by mixing a preferred polyisocyanate component with a preferred polyisocyanate reactive component and then applying the coating to the goods which are to be coated. Yet another embodiment of the invention is a method of adhering two surfaces by forming a coating by mixing a preferred polyisocyanate component with a preferred polyisocyanate reactive component, applying the coating mixture to one surface and contacting the second surface to the coated first surface.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: March 27, 2007
    Assignee: Light Black Inc.
    Inventor: Rafael Bonilla
  • Patent number: 7176272
    Abstract: A polymeric material which exhibits an optically detectable response to changes in pressure. The material includes an elastomer selected from the group of a polyurethane, a polyacrylate, and a silicone, in combination with a photochemical system. The photochemical system may be in the form of an exciplex or a fluorescence resonance energy transfer. Both photochemical systems are reversible processes. Synthesis of the elastomer and the photochemical system produce a material which forms an excited charge transfer complex when subject to an increase in pressure and a less excited charge transfer complex as pressure is lowered.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: February 13, 2007
    Assignee: Leatech, LLC
    Inventors: Marvine P. Hamner, Robert F Mulligan
  • Patent number: 7175915
    Abstract: A method of producing polyurethane pads and other articles has the steps of providing at least one polyurethane layer having a first curing agent, providing a second polymer layer having a second curing agent, providing a connecting layer between the first and second layers with the first curing agent as in the first polyurethane layer, and subjected the layers to a thermal treatment so that the same first curing agent migrates from the connecting layer to the first polyurethane layer and vice versa. Also, an article produced by the method is proposed.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: February 13, 2007
    Assignee: Universal Photonics
    Inventors: Alex Cooper, Sergey Vladimirtsev, Yevgeny Bederak
  • Patent number: 7176271
    Abstract: A process for preparing high-functionality, highly branched polyureas comprises the steps a) reaction of an at least bifunctional capped diisocyanate or polyisocyanate with at least one at least bifunctional primary and/or secondary amine with elimination of the capping agent, b) intramolecular reaction of the reaction product from step a) to form a high-functionality, highly branched polyurea.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: February 13, 2007
    Assignee: BASF Aktiengesellschaft
    Inventor: Bernd Bruchmann
  • Patent number: 7169875
    Abstract: A composition suitable for use as a catalyst for the reaction of an isocyanate compound or prepolymer thereof with an alcohol to form a polyurethane comprises a mixture of (a)an organometallic compound selected from: (i) a compound of formula M(RO)4, where M is titanium, zirconium, hafnium, aluminium, cobalt or iron or a mixture of these metals and OR is the residue of an alcohol ROH in which R comprises an (optionally substituted) C1-30 cyclic, branched or linear, alkyl, alkenyl, aryl or alkyl-aryl group or a mixture thereof, or; (ii) a complex of titanium, zirconium and/or hafnium and an acetoacetate ester and (b) a coordinating compound selected from a ketone, aldhehyde, carboxylic acid, sulphonic acid, nitride or an imine. An isocyanate composition containing a catalyst of the claimed composition is also described.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: January 30, 2007
    Assignee: Johnson Matthey PLC
    Inventor: Bruno Frederic Stengel
  • Patent number: 7169876
    Abstract: A two component polyurea coating composition that exhibits a dual cure phenomena. The coating composition comprises a polyaspartic ester that is combined together with a polyisocyanate in such a manner that the polyisocyanate is present is an amount that is greater than a normal stoichiometric amount for the polyaspartic ester. By over indexing the polyaspartic ester with the polyisocyanate advantages of moisture curing and or “fast curing” can be combined together in the final finish.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 30, 2007
    Assignee: Freda Incorporated
    Inventor: Richared E. Asher
  • Patent number: 7169852
    Abstract: Provided are moisture-reactive hot-melt compositions and methods for making such moisture-reactive hot-melt compositions. The compositions are formed by a process comprising mixing ingredients comprising at least one polyol, at least one polyisocyanate, and at least one acrylic polymer. Also provided are composite constructions formed by a process comprising applying a film of such compositions to a first substrate and contacting at least one subsequent substrate to that film.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: January 30, 2007
    Assignee: Rohm and Haas Company
    Inventor: Pankaj Vinubhai Shah
  • Patent number: 7166358
    Abstract: The invention is directed to rolls comprising a polyurethane elastomer formed from a polyurethane mixture comprising, inter alia, at least one graft polyacrylate curative, and processes for manufacturing such rolls. The roll is suitable for employment in image forming devices, for example in electrophotographic print applications.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: January 23, 2007
    Assignee: Lexmark International, Inc.
    Inventors: Bhaskar Gopalanarayanan, Kelly A. Killeen, Johnny D. Massie, II, Jing X. Sun
  • Patent number: 7163995
    Abstract: The invention concerns a polyisocyanate composition having high functionality, obtained by polycondensation of diisocyanate or triisocyanate monomers, comprising: (a) 0.5 to 30 wt % of compounds bearing a single uretidinedione function; (b) 0.5 to 45 wt. % of compounds bearing a single isocyanurate function; (c) at least 40 wt. % of a mixture of polyisocyanate compounds having a molecular weight not less than three times the average molecular weight of the isocyanate monomers having the smallest molecular weight and bearing at least two isocyanate functions, said mixture having a ratio of carbonyl functions belonging to a uretidinedione cycle/carbonyl functions belonging to an isocyanate cycle+carbonyl functions belonging to a uretidinedione cycle not less than 4%; (d) 0 to 25 wt. % of compounds bearing at least an isocyanate function other than (a), (b) and (c); and (e) 0 to 10% of impurities.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: January 16, 2007
    Assignee: Rhodia Chimie
    Inventor: Jean-Marie Bernard
  • Patent number: 7160975
    Abstract: This invention relates to ethylenically unsaturated macromers which contain reactive unsaturation, and to a process for preparing these ethylenicallly unsaturated macromers which contain reactive unsaturation. The process of preparing these ethylenically unsaturated macromers comprises reacting a monofunctional compound which corresponds to a specific formula with at least one alkylene oxide, in the presence of at least one alkoxylation catalyst. The ethylenically unsaturated macromers correspond to the formula set forth herein. This invention also relates to preformed stabilizers comprising ethylenically unsaturated macromers, to a process for preparing these preformed stabilizers, to polymer polyols comprising these preformed stabilizers, and to a process of preparing these polymer polyols which comprise these preformed stabilizers. Polymer polyols comprising ethylenically unsaturated macromers and a process for their preparation are also described.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: January 9, 2007
    Assignee: Bayer MaterialScience LLC
    Inventors: Rick L. Adkins, Scott A. Guelcher
  • Patent number: 7160930
    Abstract: A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications including spray roofing, insulation, etc. The preferred composition for preparing a polyurethane foam comprises an isocyanate component and a polyol component, wherein the polyol component preferably comprises a combination of Mannich polyol, polyester polyol, and polyether polyol. Preferably, the composition includes water to act as a blowing agent and a metal salt catalyst to assist in the reaction. Preferably, the isocyanate index is between about 1.2 and about 2.0. Additional catalysts, surfactants, flame retardants, and blowing agents may also be used depending upon the desired finished product.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: January 9, 2007
    Assignee: Baysystems North America LLC
    Inventors: Thomas A. Sparks, Philip D. Harkins, Ray J. Anderson
  • Patent number: 7160976
    Abstract: Pressure-sensitive adhesive based on polyurethane, characterized in that the polyurethane is composed of the following starting materials which are reacted with one another in the stated proportions: a) at least one aliphatic or alicyclic diisocyanate having in each case an asymmetrical molecular structure, b) a combination of at least one polypropylene glycol diol and at least one polypropylene glycol triol, the ratio of the number of hydroxyl groups in the diol component to the number of hydroxyl groups in the triol component being between 0.7 and 9.0, preferably between 1.5 and 2.5, additionally the ratio of the number of isocyanate groups to the total number of hydroxyl groups being between 0.9 and 1.1, preferably between 0.95 and 1.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: January 9, 2007
    Assignee: tesa Aktiengesellschaft
    Inventors: Bernd Lühmann, Philippe Hesse, Sianty Sunarto, Uwe Schümann, Kirstin Weiland, Carsten Böhmer
  • Patent number: 7153926
    Abstract: Disclosed is a golf ball, which includes a core and a polyurethane cover covering over the core. A composition of the cover includes a thermoplastic polyurethane elastomer which contains, as its component, a compound having three or more reactive functional groups capable of reacting with an isocyanate group. The present invention can provide a golf ball having a cover excellent in abrasion resistance and resiliency.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: December 26, 2006
    Assignee: SRI Sports Limited
    Inventors: Kazuhiko Isogawa, Koichi Fujisawa
  • Patent number: 7153925
    Abstract: The present invention relates to novel condensation polymers where N,N*-disubstituted disulfonamides are copolymerized with an organic acid dihalide such as dicarboxylic acid dichlorides, disulfonic acid dichlorides, bis chloroformates, diphosphoryl acid dichlorides, diphosphonyl acid dichlorides, or phosgene or with diisocyanates. The polymers obtained are thermoplastic and useful in molding and extrusion application.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: December 26, 2006
    Inventor: R. Garth Pews
  • Patent number: 7151154
    Abstract: Graft polymer curatives comprise a side chain having an average molecular weight of at least about 500, a main chain having an average molecular weight of less than about 200, and diol functionality on the main chain. The graft polymer curative is formed via free radical polymerization of at least one ethylenically-unsaturated monomer with a chain transfer agent or initiator.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: December 19, 2006
    Assignee: Lexmark International, Inc.
    Inventors: Kelly A. Killeen, Jing X. Sun
  • Patent number: 7151121
    Abstract: The invention relates to a polyurethane obtainable by reacting a polyisocyanate and a polyol composition comprising a highly branched polysaccharide of randomly bonded glucopyranose units or an alkoxylated derivative of the same. The polysaccharide has an average number of 10–100 glucose residues and said polysaccharide and derivative both have an average functionality of 30 or more. The invention also relates to a process for the production of such a polyurethane as well as a mix for the production of a polyurethane comprising a polyol composition, comprising 2–100 % of a highly branched polysaccharide, at least one catalyst and at least one surfactant.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 19, 2006
    Assignee: Danisco A/S
    Inventors: Charles M. Nichols, Kenneth F. Knoblock, David D. Russell, James M. O'Connor, Alexander McLauchlin
  • Patent number: 7151153
    Abstract: Hyperbranched polyurethanes are used for the preparation of printing inks and of printing varnishes. Printing inks and printing varnishes contain the hyperbranched polyurethanes as binders.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: December 19, 2006
    Assignees: BASF Aktiengesellschaft, XSYS Print Solutions Deutschland GmbH
    Inventors: Bernd Bruchmann, Joelle Bedat, Jürgen Kaczun, Peter Poganiuch
  • Patent number: RE39936
    Abstract: The present invention relates to crosslinked, water-soluble or water-dispersible polyurethanes of A) at least one water-soluble or water-dispersible polyurethane prepolymer having terminal isocyanate groups of a) at least one compound having a molecular weight in the range from 56 to 300 which contains two active hydrogen atoms per molecule, b) at least one polymer containing two active hydrogen atoms per molecule, c) at least one compound which contains two active hydrogen atoms and at least one ionogenic or ionic group per molecule, d) at least one diisocyanate, B) at least one polymer containing groups which are reactive toward isocyanate groups, chosen from hydroxyl, and primary and secondary amino and/or carboxyl groups, or the salts thereof.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: December 4, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Son Nguyen Kim, Axel Sanner, Peter Hössel, Volker Schehlmann