Patents Examined by Rachel Gorr
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Patent number: 7151153Abstract: 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: GrantFiled: October 30, 2001Date of Patent: December 19, 2006Assignees: BASF Aktiengesellschaft, XSYS Print Solutions Deutschland GmbHInventors: Bernd Bruchmann, Joelle Bedat, Jürgen Kaczun, Peter Poganiuch
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Patent number: 7151121Abstract: 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: GrantFiled: May 26, 2004Date of Patent: December 19, 2006Assignee: Danisco A/SInventors: Charles M. Nichols, Kenneth F. Knoblock, David D. Russell, James M. O'Connor, Alexander McLauchlin
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Patent number: 7148287Abstract: Compositions incorporating water-curable urethane constituent(s) are formulated with favorable viscosity and viscosity stability characteristics, while at the same time, preserving desired hardness characteristics. The present invention is particularly useful in applications in which water-curable compositions include NCO-functional resins having relatively high NCO content and/or incorporate MDI-based constituents. Preferred modes of practicing the invention include implementing one or more formulation strategies to help retain hardness while preserving good viscosity characteristics. These preferred strategies involve (i) balancing scavenger, polyisocyanate and polyfunctional polyol content of the compositions or resins thereof, as the case may be, (ii) formulating an NCO-functional resin with chain extender constituent(s) to enhance viscosity stability, (iii) formulating with one or more plasticizers that enhance viscosity performance, and (iv) combinations of two or more of these strategies.Type: GrantFiled: May 13, 2004Date of Patent: December 12, 2006Inventor: Laxmi C. Gupta
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Patent number: 7148310Abstract: The present invention is directed to a multiple component coating composition comprising (a) a film forming binder component having isocyanate reactive groups; (b) a stable polyisocyanate solution comprising organic liquid and up to 30% by weight, based on the weight of the polyisocyanate solution, of a polyisocyanate having reactive isocyanate groups selected from an aromatic polyisocyanate having tertiary isocyanate groups or a (meth)acrylic polymer containing reactive isocyanate groups; and (c) optionally, a tinting composition comprising pigment, a dispersing agent and an organic liquid carrier; whereby components (a), (b) and (c) are blended together before application to a substrate and after application to a substrate the composition is cured to form a finish. The present invention is also directed to a method of producing a finish on a substrate and to the resulting coated substrate.Type: GrantFiled: August 13, 2004Date of Patent: December 12, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Christopher Scopazzi, Douglas Matt Lamb
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Patent number: 7148308Abstract: The present invention provides an one-part moisture-curable urethane composition which exhibits excellent adhesion particularly to a coated steel plate difficult to bond with no-primer and is useful in the bonding of automobile window glass. The urethane composition of the present invention comprises an isocyanate-terminated urethane prepolymer as the main component, and additional components comprising (A) a compound having solubility parameter value of 6.0 to 9.0 and/or (B) a compound having in the molecule at least one structure represented by the following formula: (wherein n is 0 to 3).Type: GrantFiled: October 1, 2002Date of Patent: December 12, 2006Assignee: Sunstar Giken Kabushiki KaishaInventors: Atsushi Inoue, Yoshinori Mayama, Yoshihiro Nakata
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Patent number: 7144969Abstract: The present invention relates to a polyureaurethane wherein the prepolymer comprising said polyureaurethane has a NCO to OH equivalent ratio of from 2.0 to less than 2.5. In an embodiment, the polyureaurethane prepolymer comprises a polyisocyanate and at least one OH-containing material, which can be reacted with an amine-containing curing agent to produce the polyureaurethane of the present invention.Type: GrantFiled: November 5, 2002Date of Patent: December 5, 2006Assignee: PPG Industries Ohio, Inc.Inventor: William H. McDonald
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Patent number: 7141645Abstract: The present invention provides a wiring-connecting material comprising from 2 to 75 parts by weight of a polyurethane resin, from 30 to 60 parts by weight of a radical-polymerizable substance and from 0.1 to 30 parts by weight of a curing agent capable of generating a free radical upon heating, and a process for producing a wiring-connected board by using the wiring-connecting material. The wiring-connecting material of the present invention may preferably further contain a film-forming material and/or conductive particles.Type: GrantFiled: May 17, 2004Date of Patent: November 28, 2006Assignee: Hitachi Chemical Company, Ltd.Inventors: Tohru Fujinawa, Masami Yusa, Satoyuki Nomura, Hiroshi Ono, Itsuo Watanabe, Motohiro Arifuku, Hoko Kanazawa
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Patent number: 7138466Abstract: High green strength reactive hot melt adhesives are prepared using relatively low levels of reactive acrylic, and may be prepared with one or more difunctionals having cyclic or polycyclic structures.Type: GrantFiled: April 6, 2004Date of Patent: November 21, 2006Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ju-Ming Hung, Yue S. Zhang, Yimin Zhang, Zhixin Li
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Patent number: 7138477Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hydroxyl groups and/or amine groups. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.Type: GrantFiled: June 2, 2004Date of Patent: November 21, 2006Assignee: Acushnet CompanyInventor: Shenshen Wu
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Patent number: 7135505Abstract: A radiation curable coating composition that includes from about 5 to about 70% by weight of the reaction product of i) one or more polyisocyanates, where at least 10 equivalent percent of the isocyanate groups are in the form of uretdione groups, and ii) one or more hydroxy functional lactone ester (meth)acrylates. The amount of component i), on an isocyanate equivalent basis, is equal to the amount of hydroxy equivalents of hydroxy containing materials in the composition. The composition can be used to coat substrates by coating at least a portion of the substrate with the above-described coating composition and subjecting the coated substrate to radiation.Type: GrantFiled: October 25, 2004Date of Patent: November 14, 2006Assignee: Bayer Materialscience LLCInventors: Richard R. Roesler, Katherine M. Ratliff, Catherine M. Britsch, Charles A. Gambino
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Patent number: 7135536Abstract: The present invention relates to a polymerization method of polyisocyanates endcapped with acyl chlorides, and more particularly to a process for preparing polyisocyanate with higher stability comprising endcapping a living polymer chain amidate anion with an acyl chloride derivative in the presence of an amine catalyst, thereby enabling to maximize endcapping ratios.Type: GrantFiled: November 11, 2004Date of Patent: November 14, 2006Assignee: Gwangju Institute of Science and TechnologyInventors: Jae-Suk Lee, Chan Hee Jung, Sang-Yoon Park, Guttikonda Yogendra Nath, Shashahar Samal
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Patent number: 7132495Abstract: The invention provides an optical material being excellent in balance between the heat resistance, Abbe number and refractive index by providing a compound represented by the general formula (1): in the formula, k and n representing integers of 0 to 2 and 0 to 1, respectively, with the proviso that k and n are not simultaneously zero, and k=0 meaning that —(CH2)k- is not included in the formula.Type: GrantFiled: August 20, 2004Date of Patent: November 7, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Ryuji Haseyama, Isao Fukada, Akira Matsuura, Hiroki Mizutani, Seiichi Kobayashi
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Patent number: 7129279Abstract: A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler, a surfactant, a colorant, and a mold-release agent. A lightweight tire support can be prepared from a polyurethane-polymer composition by, for example, reaction injection molding. Such a tire support desirably has temperature stability and load-bearing capability.Type: GrantFiled: September 16, 2004Date of Patent: October 31, 2006Assignee: Dow Global Technologies Inc.Inventors: Alan K. Schrock, Ralph D. Priester, Jr., Wayne R. Willkom, Robert E. O'Neill, Martin C. Cornell, Christopher P. Christenson
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Patent number: 7125950Abstract: A solvent-free process for making a polyol fatty acid polyester composition useful for preparation of polyurethanes is described. These compositions are preferably made by reaction of a natural oil (from plant or animal) with a multi-functional hydroxyl compound derived from a natural source, such as sorbitol, in presence of an alkali metal salt or base such as potassium hydroxide as a catalyst which also acts to saponify the reaction mixture. The hydroxyl content of the prepared composition depends on the amount of the multi-functional hydroxyl compound used in the preparation. In another embodiment, the hydroxyl groups of these compositions are reacted with an isocyanate, such as the polymeric diphenylmethane diisocyanate (also known as 4,4?-diphenyl methane diisocyanate, or MDI) to form polyurethanes in a conventional manner.Type: GrantFiled: April 29, 2004Date of Patent: October 24, 2006Assignee: Board of Trustees of Michigan State UniversityInventors: Jean-Pierre L. Dwan'Isa, Lawrence T. Drzal, Amar K. Mohanty, Manjusri Misra
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Patent number: 7119160Abstract: There are provided a polyalkenyl ether type polyurethane, which is excellent in flexibility, aor the like, and which has in the molecule, a structural unit represented by formula (XXX): (wherein n represents an integer of 2 to 1000, R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl, and R2, R3 and R4, which are the same or different, each represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted aralkyl, and R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be respectively the same or different), and the like.Type: GrantFiled: April 3, 2003Date of Patent: October 10, 2006Assignee: Kyowa Hakko Chemical Co., Ltd.Inventors: Sai Kodama, Shigeru Murata, Toshihiro Inayama, Tatsuo Niimi
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Patent number: 7115697Abstract: An adhesive composition comprising a two-component system comprising A) at least one polyester urethane containing at least two isocyanate groups, which polyester urethane may be obtained by reaction of one or more polyesters 1 with aliphatic diisocyanates and reaction with one or more polyesters 2, wherein polyester 1 exhibits a number average molecular weight Mn in the range from 3,000 to 7,000 g/mol and polyester 2 exhibits a number average molecular weight Mn in the range from 700 to 2,000 g/mol and B) one or more branched polyesters with a number average molecular weight Mn in the range from 1,000 to 3,500 g/mol and optionally one or more conventional additives; the present invention provides a polyurethane-based adhesive composition which is suitable for the production of laminates for sterilizable packaging and exhibits a low residual content of highly volatile diisocyanates.Type: GrantFiled: August 31, 2004Date of Patent: October 3, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Olaf Kleineberg, Erik de Jong, Engin Temeltas, Heinz-Peter Pfeiffer, Peter Schreiber
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Patent number: 7115705Abstract: A polythiourethane is produced by polymerizing a compound represented by formula (I) in the presence of a compound represented by formula (II) in which R1 represents a methyl group;Type: GrantFiled: November 5, 2004Date of Patent: October 3, 2006Assignee: JSR CorporationInventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
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Patent number: 7112648Abstract: A polyimide film according to the present invention satisfies Condition (1) in which a tear propagation resistance variation CH is not more than 1.0 g, and/or Condition (2) in which a swelling coefficient CR after being dipped in an alkaline solution is not more than 20.0. By satisfying these conditions, workability of the polyimide film can be improved and working defects can be effectively prevented, thereby improving productivity of each step.Type: GrantFiled: June 17, 2002Date of Patent: September 26, 2006Assignee: Kaneka CorporationInventors: Kazuhiro Ono, Kan Fujihara, Kiyokazu Akahori
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Patent number: 7109287Abstract: Polyimides displaying low color in thin films, atomic oxygen resistance, vacuum ultraviolet radiation resistance, solubility in organic solvents in the imide form, high glass transition (Tg) temperatures, and high thermal stability are provided. The poly(amide acid)s, copoly(amide acid)s, polyimides and copolyimides are prepared by the reaction of stoichiometric ratios of an aromatic dianhydride with diamines which contain phenylphosphine oxide groups in polar aprotic solvents. Controlled molecular weight oligomeric (amide acid)s and imides can be prepared by offsetting the stoichiometry according to the Carothers equation using excess diamine and endcapping with aromatic anhydrides.Type: GrantFiled: November 8, 2004Date of Patent: September 19, 2006Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: John W. Connell, Joseph G. Smith, Jr., Paul M. Hergenrother, Kent A. Watson, Craig M. Thompson
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Patent number: 7109285Abstract: The present invention relates to novel polyurethane prepolymers (PU prepolymers) of low viscosity containing NCO groups blocked with compounds containing phenol groups and to their use for producing polyurethane polymers. The PU prepolymers are prepared by reacting one or more diisocyanates or polyisocyanates with at least one isocyanate-reactive compound with a functionality of at least 1.5 to form an NCO-functional polyurethane prepolymer and subsequently blocking the free NCO groups with at least one hydrocarbon resin containing phenolic OH groups and/or one optionally substituted phenol in the presence of a catalyst which comprises at least one triorganoamine.Type: GrantFiled: April 5, 2004Date of Patent: September 19, 2006Assignee: Bayer MaterialScience AGInventors: Michael Mager, Thomas Stingl