Reactant Which Contains At Least Two -c-c(=x)-x-c Groups Has Been Derived From Only A Dicarboxylic Acid Or Derivative And Only A Dihydric Alcohol Or Alcoholate Derivative Patents (Class 528/83)
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Patent number: 10907006Abstract: The present invention relates to a method for producing a molded body (MB) comprising the production of a thermoplastic polyurethane, the production of a molded body (MB*) from the thermoplastic polyurethane, heating the molded body (MB*) to a temperature below the temperature at which there is permanent deformability of the molded body (MB*), and above the switching temperature of the thermoplastic polyurethanes, elongating the heated molded body (MB*) with obtention of a molded body (MB), and cooling the molded body (MB) to a temperature below the switching temperature of the thermoplastic polyurethane, and the molded body obtained or obtainable by such a method. The present invention further relates to a thermoplastic polyurethane with shape memory and the use of a thermoplastic polyurethane for producing a molded body with shape memory effect in a temperature range from 0° C. to 130° C.Type: GrantFiled: December 21, 2016Date of Patent: February 2, 2021Assignee: BASF SEInventors: Zeljko Tomovic, Frank Prissok, Kathrin Cohen
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Patent number: 10899114Abstract: A RF weldable film is provided. The film has outer layer including a PVDF copolymer or an alpha-olefin polymer and backing layer including a TPU copolymer. The film may have a gas barrier layer attached to the backing layer. The backing layer may include an EVOH copolymer. A method of making such a film is also provided. Containers made from such film are further provided.Type: GrantFiled: May 5, 2017Date of Patent: January 26, 2021Assignee: MEISSNER FILTRATION PRODUCTS, INC.Inventor: Christian Julien
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Patent number: 10472465Abstract: The present invention relates to a method for producing a polycarbonate diol, comprising subjecting a compound represented by the following formula (A) containing from 0.01 to 1.0 wt % of an aldehyde derivative, a compound represented by the following formula (B), and a carbonate compound to polycondensation by a transesterification reaction in the presence of a catalyst to produce a polycarbonate diol having a number average molecular weight of 250 to 5,000: HO—(CH2)10—OH??(A) HO—R1—OH??(B) wherein in the formula (B), R1 represents a substituted or unsubstituted divalent alkylene group having a carbon number of 3 to 20, wherein the compound of the formula (A) is not included by the formula (B).Type: GrantFiled: November 22, 2016Date of Patent: November 12, 2019Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Kazunao Kusano, Kazuki Wakabayashi, Yoko Nakagawa, Yusuke Izawa, Yoshikazu Kanamori
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Patent number: 10300660Abstract: A method of treating at least part of a surface (110) of an article (100) in which an article (100) is treated, at least part of a surface (110, 111) of the article having been produced by an additive manufacturing method from a construction material, and the construction material provides a temperature TG? at which the storage modulus G? of the construction material (determined by dynamic-mechanical analysis according to ISO 6721 at a shear rate of 1/s) is 10 MPa. The article is preferably placed into an evacuable volume and the volume is evacuated. By heating and exerting pressure, the surface is plastically deformed and can be smoothed thereby.Type: GrantFiled: October 24, 2017Date of Patent: May 28, 2019Assignee: Covestro Deutschland AGInventors: Dirk Achten, Thomas Büsgen, Roland Wagner, Bettina Mettmann, Levent Akbas, Julien Guiu
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Patent number: 9150989Abstract: The present invention provides a spunbonded non-woven fabric having excellent productivity, stretchability, touch and fuzz resistance without adhesion thereof on a roll and the like just after fiber deposition during the production. The spunbonded non-woven fabric comprises long fibers of a thermoplastic polyurethane elastomer (A) containing ethylene bisoleic acid amide and/or crosslinked organic fine particles and having a hardness of 75 to 85, and the spunbonded non-woven fabric comprises the long fibers of the thermoplastic polyurethane elastomer (A) and long fibers of a thermoplastic resin (B) other than the thermoplastic polyurethane elastomer (A). The present invention also provides uses thereof.Type: GrantFiled: April 15, 2011Date of Patent: October 6, 2015Assignee: MITSUI CHEMICALS, INC.Inventors: Kenichi Suzuki, Tetsuya Yokoyama
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Patent number: 9101796Abstract: A golf ball having an over-indexed thermoplastic polyurethane elastomer cover and having a soft feeling when hit. The golf ball cover also may be cross-linked.Type: GrantFiled: January 3, 2012Date of Patent: August 11, 2015Assignee: NIKE, Inc.Inventors: Yasushi Ichikawa, Thomas J. Kennedy, III, Chen-Tai Liu, Chien-Hsin Chou, Hui-Kai Liao
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Patent number: 9012590Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.Type: GrantFiled: October 1, 2010Date of Patent: April 21, 2015Assignee: Lubrizol Advanced Materials, Inc.Inventors: Qiwei Lu, Donald A. Meltzer, Yona Eckstein
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Patent number: 8962786Abstract: The present invention relates to chain extenders, processes for their preparation and their use in the preparation of biocompatible biodegradable polyurethanes and polyurethane ureas for biomedical applications such as stents, scaffolds for tissue engineering.Type: GrantFiled: June 20, 2011Date of Patent: February 24, 2015Assignee: PolyNovo Biomaterials Pty LtdInventors: Pathiraja Arachchillage Gunatillake, Timothy Graeme Moore, Raju Adhikari
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Patent number: 8946374Abstract: A polyurethane resin composition for optical applications can contain, as essential components, a polyisocyanate and a polyester-ether polyol obtained by polycondensation of a glycol component containing an alkylene oxide adduct of a bisphenol and an aromatic carboxylic acid component and particularly preferably having a glass transition temperature of 50° C. or lower. An optical material using the composition is also provided for.Type: GrantFiled: September 14, 2010Date of Patent: February 3, 2015Assignee: DIC CorporationInventors: Tomoyuki Imada, Kouji Shiraishi
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Patent number: 8933188Abstract: The tendency of a two component laminating adhesive based on polyurethane chemistry to form a mist of fine droplets when applied at a high line speed may be reduced by including both a high functionality polyol and a lower functionality polymeric polyol in Component B which is combined and reacted with an isocyanate-functionalized polyurethane prepolymer in Component A.Type: GrantFiled: November 12, 2004Date of Patent: January 13, 2015Assignee: Henkel US IP LLCInventors: J. Brandon Simons, Grant B. Kenion
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Patent number: 8912291Abstract: Embodiments include oxazolidone ring containing adducts obtainable by combining an aliphatic epoxy compound, an aromatic epoxy compound, and a diisocyanate. Embodiments further include a curable powder coating composition including a resin component and a hardener component, where the resin component includes the oxazolidone ring containing adduct.Type: GrantFiled: December 20, 2010Date of Patent: December 16, 2014Assignee: DOW Global Technologies LLCInventors: Joseph Gan, Emile C. Trottier
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Publication number: 20140256902Abstract: The present invention relates to homogeneous extruded articles made from thermoplastically processable polyurethanes based on polyester diols formed from succinic acid and 1,3-propanediol.Type: ApplicationFiled: September 27, 2012Publication date: September 11, 2014Applicant: Bayer Intellectual Property GmbHInventors: Wolfgang Bräuer, Yi Shen, Wolfgang Kaufhold, Hartmut Nefzger
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Patent number: 8802770Abstract: The present invention discloses a semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a hydrophobic polyol, (2) a polyisocyanate, and (3) a linear chain extender containing 5 carbon atoms or 7 to 12 carbon atoms; wherein the hydrophobic polyol has a number average molecular weight which is within the range of about 1,000 to about 4,000; wherein the semicrystalline, thermoplastic polyurethane has a weight average molecular weight which is within the range of 50,000 to 1,000,000; and wherein the semicrystalline, thermoplastic polyurethane has a melting point which is within the range of 80° C. to 150° C. This hydrophobic thermoplastic polyurethane offers a unique array of characteristics that are highly desirable for utilization in manufacturing a variety of products. For instance, it can be used in overmolding soft grips onto consumer products, in adhesives, and in protective coatings.Type: GrantFiled: January 21, 2009Date of Patent: August 12, 2014Assignee: Lubrizol Advanced Materials, Inc.Inventors: Donald A. Meltzer, Jacques P. E. J. Horrion
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Publication number: 20140194533Abstract: The present invention provides a biocompatible and biodegradable elastomer, comprising a hard segment and a soft segment. The hard segment is formed by reacting diisocyanate and a chain extender; and the soft segment is comprising a biodegradable oligomer diol, wherein the biodegradable oligomer diol is selected from the group consisting of polycaprolactone diol, polyethylene butylene adipate diol (PEBA diol), poly-L-lactic acid diol (PLLA diol), polylactic acid diol and any combination thereof. The biocompatible and biodegradable elastomer of present invention can be used to produce vascular graft, cell carrier, drug carrier or gene carrier.Type: ApplicationFiled: December 31, 2013Publication date: July 10, 2014Applicant: National Taiwan UniversityInventors: Shan-hui Hsu, Kun-Che Hung, Shenghong A. Dai, Chun-Yi Lu
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Patent number: 8742054Abstract: A hybrid resin composition is described, the composition comprising: A. An A part composition comprising an aliphatic polyfunctional isocyanate compound and a free radical polymerization initiator; and B. A B part composition comprising an ethylenically unsaturated, substantially water-free polyester polyol and a polyurethane catalyst. The A part composition can contain a non-interfering solvent, e.g., styrene, and the B part composition typically has an acid value of 5 or less (based on solids). For outdoor use, the B part composition is preferably free of tertiary hydrogens, ether glycols and terephthalic acid residues.Type: GrantFiled: August 18, 2006Date of Patent: June 3, 2014Assignee: CCP Composites USInventors: Frédéric Bauchet, Larry Morris, Woody Holley, Kenneth Seroogy
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Publication number: 20140101825Abstract: The invention relates to a fiber excellent in cool contact feeling which is excellent in hand and skin touch and capable of preventing unpleasant feeling in the wet state while also having excellent elasticity. The invention also relates to fabric, clothing, and underwear excellent in cool contact feeling and obtainable by using said fiber as well as the methods of making the fibers and articles thereof.Type: ApplicationFiled: April 10, 2012Publication date: April 17, 2014Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Ravi R. Vedula, Mouh-Wahng Lee
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Patent number: 8697830Abstract: Light-stable, sinterable, thermoplastic polyurethanes with improved blooming behavior and good thermal stability as well as good technical processability are produced from an aliphatic diisocyanate using one or more chain extenders corresponding to a specified formula. These polyurethanes are particularly useful in the production of molded articles, particularly molded articles for automotive interiors.Type: GrantFiled: May 4, 2007Date of Patent: April 15, 2014Assignee: Bayer MaterialScience AGInventors: Henricus Peerlings, Wolfgang Kaufhold, Hartmut Nefzger, Erika Bauer, Markus Broich
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Publication number: 20140051823Abstract: The problem to be solved by the present invention is to provide a method for continuously and effectively producing an aliphatic polyester having an increased molecular weight which prevents evaporation of diisocyanate at the step of mixing the diisocyanate with the aliphatic polyester prepolymer in a molten state at a temperature not lower than the melting point of the prepolymer and enables uniform mixing of the diisocyanate with the aliphatic polyester prepolymer.Type: ApplicationFiled: January 17, 2012Publication date: February 20, 2014Inventors: Yasushi Ichikawa, Hideharu Kimura, Akira Ishii
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Publication number: 20140018458Abstract: A method for producing a polyester polyol is disclosed. The method comprises reacting phthalic anhydride with a diol selected from the group consisting of ethylene glycol, propylene glycol, 1,3-propanediol, 2-meth-1,3-propanediol, neopentyl glycol, 1,6-hexanediol, polyethylene glycols having a number average molecular weight within the range of 200 g/mol to 600 g/mol, and mixtures thereof at a diol to phthalic anhydride molar ratio within the range of 1.1 to 1.6. The resulting o-phthalate polyester polyol has a hydroxyl value in the range of 18 to 400 mg KOH/g, an acid value in the range of 0.2 to 5.0 mg KOH/g, and 1 wt. % or less of cyclic esters.Type: ApplicationFiled: March 7, 2012Publication date: January 16, 2014Applicant: STEPAN COMPANYInventors: Douglas Hillshafer, Andrew Guo
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Patent number: 8609776Abstract: An ethylenically unsaturated prepolymer comprising an ending X which reacts by condensation being a hydroxyl and/or amine or free isocyanate group and optionally an ending X? having ethylenic unsaturation, the prepolymer being the reaction product of a first component A comprising a mixture of i) a first ethylenically unsaturated resin carrying specific hydroxyl and/or amine reactive endings, and/or ii) optionally a second resin different from resin i), being an ethylenically unsaturated hydroxylated resin and/or a hydroxylated and/or aminated saturated resin, and/or iii) optionally a third reactive saturated resin, iv) optionally an unsaturated monoalcohol up to 30% in equivalents of the OH+NH2 total, and a second component B comprising a polyisocyanate with a functionality equal to 2 or greater than 2, A and B being in proportions to effectively avoid any gelling by crosslinking.Type: GrantFiled: July 4, 2007Date of Patent: December 17, 2013Assignee: CCP CompositesInventors: Patrick Belliard, Jérôme Mazajczyk, Roland Delory, Guillaume Cledat, Francis Verdiere, Serge Herman
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Patent number: 8602523Abstract: Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a fluorinated poly(amide-imide) copolymer.Type: GrantFiled: November 11, 2011Date of Patent: December 10, 2013Assignee: Xerox CorporationInventors: Edward F Grabowski, Yuhua Tong
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Publication number: 20130274401Abstract: The present invention encompasses polyurethane adhesive compositions comprising aliphatic polycarbonate chains. In one aspect, the present invention encompasses polyurethane adhesives derived from aliphatic polycarbonate polyols and polyisocyanates wherein the polyol chains contain a primary repeating unit having a structure: In another aspect, the invention provides articles comprising the inventive polyurethane compositions as well as methods of making such compositions.Type: ApplicationFiled: April 16, 2013Publication date: October 17, 2013Applicant: Novomer, Inc.Inventors: Scott D. Allen, Vahid Sendijarevic, James O'Connor
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Patent number: 8557947Abstract: Curable polyurethane, polyurea and polyurethane/polyurea compositions that are particularly useful as the outer layer and/or at least one inner layer of golf balls, cured compositions, golf balls comprising the cured composition, and methods of increasing the initial velocity of a golf ball using the curable polyurethane, polyurea and polyurethane/poly urea compositions are disclosed.Type: GrantFiled: October 26, 2012Date of Patent: October 15, 2013Assignees: The Hanson Group, LLC, Formost Golf Manufacturing, Ltd.Inventors: Wallace Lee Hanson, Jr., Kevin W. Light, Ray Vernon Scott, Jr., Shenshen Wu
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Patent number: 8536293Abstract: The present invention provides a triblock copolymer and a viscoelastic biostable foam comprising the same.Type: GrantFiled: March 15, 2011Date of Patent: September 17, 2013Assignee: Vysera Biomedical LimitedInventors: Niall Behan, Ashutosh Kumar
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Patent number: 8524852Abstract: Golf balls containing at least one layer made from a thermoset polyurethane or polyurethane-urea that is the reaction product of a polyisocyanate with moisture-resistant polyol and a curing agent are provided. The moisture-resistant polyol may be prepared by dimerizing unsaturated aliphatic monocarboxylic acid or ester containing 10 to 60 carbon atoms followed by reacting it with a monomeric, oligomeric, or polymeric diol. In one preferred version, the moisture-resistant polyol is a branched polyester polyol containing 36 carbon atoms. The composition can be prepared using prepolymer or one-shot manufacturing techniques. The thermoset composition has good cross-link density. The resulting golf ball has desirable playing performance properties including high resiliency, toughness, impact durability, moisture-resistance, and soft feel.Type: GrantFiled: April 19, 2010Date of Patent: September 3, 2013Assignee: Acushnet CompanyInventors: Murali Rajagopalan, Michael Michalewich, Shawn Ricci, Michael J. Sullivan
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Patent number: 8454793Abstract: An adhesive containing polyisocyanate and a polyol containing at least one dimer fatty acid and/or dimer fatty diol. The adhesive is particularly suitable for use on wood.Type: GrantFiled: December 22, 2003Date of Patent: June 4, 2013Assignee: Croda International PLCInventors: Jeffrey Thomas Carter, Renee-van Schijndel
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Patent number: 8431674Abstract: The invention relates to prepolymers containing alkoxysilane groups based on special, low-viscosity polyester polyols, which exhibit particularly high tensile strength, a process for the production thereof and their use as a binder for adhesives, primers or coatings.Type: GrantFiled: February 9, 2011Date of Patent: April 30, 2013Assignee: Bayer MaterialScience AGInventors: Michael Ludewig, Mathias Matner
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Patent number: 8367157Abstract: Radiation curable compositions comprising at least one radiation curable oligomer responding to a structure (C)—(B)-(A)-[(B)(C)]x wherein (A) is the residue of one or more hydroxyl functional polyester having a molecular weight MN higher than 900, a TG and/or Tm of 5 less than 30° C., and which is obtained from an acid constituent comprising at least 75 mole % of saturated aliphatic polyacid and, optionally, 0 to 25 mole % of another polyacid and an alcohol constituent, (B) is the residue of one or more polyisocyanate, (C) is the residue of one or more ethylenically unsaturated hydroxyl compound, and x is from 0.5 to 10.Type: GrantFiled: February 2, 2007Date of Patent: February 5, 2013Assignee: Cytec Surface Specialties, S.A.Inventors: Isabelle Fallais, Jean-Yves Salviato, Thierry Randoux
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Publication number: 20130005900Abstract: Embodiments of the invention provide for polyurethane gels or soft elastomers which incorporate renewable resources without compromising the physical and chemical properties of the gels or soft elastomers, such as resistance to many chemicals.Type: ApplicationFiled: March 10, 2011Publication date: January 3, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Gerhard Mueller, Verena M.T. Thiede
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Patent number: 8318867Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.Type: GrantFiled: December 12, 2011Date of Patent: November 27, 2012Assignee: Interface Biologics, Inc.Inventors: Sanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer
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Patent number: 8296974Abstract: The present invention is a transparent thermoplastic polyurethane (TPU) comprising structural units of: a.) a diisocyanate; b.1) a polyester diol and b.2) a specific polyether diol and c.) a chain extender. The TPU has good combinations of light transmission and clarity, tensile strength, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. A preferred example composition is a TPU that is based on MDI as the diisocyanate monomer, polycaprolactone as a polyester diol, an EO capped EO/PO polyether diol containing less than 20% EO, and butanediol as chain extender. These composition have good combinations of clarity, tensile strength, hydrolytic stability and processability compared to TPUs prepared using either polyester or polyether diols alone or the combination with a higher EO polyether diol.Type: GrantFiled: September 22, 2006Date of Patent: October 30, 2012Assignee: Lubrizol Advanced Materials, Inc.Inventors: Mark F. Sonnenschein, J. Mark Cox, Hanno R. Van der Wal, Benjamin L. Wendt
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Patent number: 8288478Abstract: Golf balls containing at least one layer made from a thermoplastic polyurethane or polyurethane-urea that is the reaction product of a polyisocyanate with moisture-resistant polyol and a curing agent are provided. The moisture-resistant polyol may be prepared by dimerizing unsaturated aliphatic monocarboxylic acid or ester containing 10 to 60 carbon atoms followed by reacting it with a monomeric, oligomeric, or polymeric diol. In one preferred version, the moisture-resistant polyol is a branched polyester polyol containing 36 carbon atoms. The composition can be prepared using prepolymer or one-shot manufacturing techniques. The resulting golf ball has desirable playing performance properties including high resiliency, toughness, impact durability, moisture-resistance, and soft feel.Type: GrantFiled: February 25, 2010Date of Patent: October 16, 2012Assignee: Acushnet CompanyInventors: Murali Rajagopalan, Derek A. Ladd, Michael J. Sullivan
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Publication number: 20120245280Abstract: An object is to provide a material for slush molding that is excellent in low-temperature meltability, and gives a molded body excellent in both of tensile strength and elongation. The present invention is a thermoplastic urethane resin (D) for thermal molding, which is a thermoplastic urethane resin yielded by causing high molecular weight diols (A) to react with a diisocyanate (B), wherein the high molecular weight diols (A) comprise a polyester diol (A1) having a glass transition temperature of 0 to 70° C., and a high molecular weight diol (A2) having a solubility parameter lower than that of the (A1) by 1.2 to 3.0 and further having a glass transition temperature of ?40 to ?75° C.Type: ApplicationFiled: December 3, 2010Publication date: September 27, 2012Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Yasuhiro Tsudo, Masaki Inaba, Shinji Watanabe
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Publication number: 20120214891Abstract: The present invention relates to polyester polyols based on aromatic dicarboxylic acids or derivatives thereof and to the use of the polyester polyols for producing polyurethanes.Type: ApplicationFiled: February 21, 2012Publication date: August 23, 2012Applicant: BASF SEInventors: Lionel GEHRINGER, Gunnar KAMPF, Sirus ZARBAKHSH, Joachim-Thierry ANDERS
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Publication number: 20120142885Abstract: Provided is a moisture-curing hot melt adhesive, which has superior overall performance, including heat resistance, adhesiveness, and solidification performance, and with which there is no reduction in the resulting IC card quality or productivity. Also provided is an IC card obtained by applying such a moisture-curing hot melt adhesive. The moisture-curing hot melt adhesive for an IC card comprises a urethane prepolymer (A) having a chemical structure (A1) derived from a polyester polyol (a1) that has isocyanate groups at the terminals and that is obtained by reacting of a diol and a dicarboxylic acid having 10 carbons or fewer. The moisture-curing hot melt adhesive has a shear modulus with non-moisture curing that is between (1×104) and (1×108) Pa at 40° C. and between (1×100) and (1×104) at 80° C. An IC card can be ideally produced by bonding a decorative material and a substrate using the moisture-curing hot melt adhesive.Type: ApplicationFiled: November 28, 2011Publication date: June 7, 2012Inventors: Yuichi Matsuki, Masaru Yamauchi, Yoshio Yoshida, Tadashi Hayakawa, Ai Takamori
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Publication number: 20120095164Abstract: The invention relates to novel aqueous, crosslinkable polyurethane dispersions based on terephthalic acid polyesters, the production thereof and their use in combination with hydroxy-functional reactants for the production of lacquers, coatings and sizes which are distinguished especially by high film hardness together with high elasticity and very good adhesion.Type: ApplicationFiled: June 24, 2010Publication date: April 19, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Harald Blum, Heino Müller, Sebastian Dörr
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Patent number: 8143368Abstract: Hydrolytically degradable polymers in the form of biodegradable disposable medical devices for use in medicine and laboratories such as syringes, test tubes, catheters, tubing, trays, medical fabrics, and gloves are described. The devices are formed in whole or in part of a hydrolytically degradable polymer. In the preferred embodiment, the devices or structural components thereof degrade in a period of weeks to months, preferably within a year and more preferably within six months of exposure to aqueous solutions. Conventional hydrolytically degradable polymers may be utilized or these may be modified to increase mechanical or processing characteristics, for example, using a polyfunctional branching agent and/or a chain extending agent. In one embodiment, the hydrolytically degradable polymer is a member of a new class of polyesters comprising an aliphatic dicarboxylic acid, an aliphatic diol and optionally, one or more bifunctional fatty acids such as ricinoleic acid and/or castor oil.Type: GrantFiled: December 22, 2005Date of Patent: March 27, 2012Assignee: Massachusetts Institute of TechnologyInventors: Abraham J. Domb, Robert S. Langer
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Patent number: 8138299Abstract: Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one further diol having at least 5 carbon atoms and a polyester diol (b2) based on butane-1,4-diol and at least one further diol having two or three carbon atoms are present as (b) polyester diols.Type: GrantFiled: April 25, 2006Date of Patent: March 20, 2012Assignee: BASF AktiengesellschaftInventors: Jörn Duwenhorst, Hauke Malz, Karin Scheffer, Thomas Flug, Martin Vallo
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Patent number: 8114920Abstract: The UV-curable aqueous coating composition is characterized by using a UV-curable aqueous emulsion obtained by urethane reaction with a mixture including a poly-carbonate polyol or polyester polyol; an isocyanate compound; a urethane-reactive carboxylic acid; a UV-curable acrylic oligomer having 2 to 9 functional acrylate groups; a UV-curable acrylic monomer; and a urethane-reactive acrylate without an organic solvent. The aqueous composition provides good environmental acceptability and satisfactory film properties comparable to those of the prior oily UV-curable coating composition and, therefore, it is useful for coating various plastics.Type: GrantFiled: January 15, 2007Date of Patent: February 14, 2012Assignee: Akzo Nobel Coatings International B.V.Inventors: Dong Soo Kim, Tae Yun Jeong, Su Dong Hong, Jung Hyun Oh
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Publication number: 20120018066Abstract: Prepolymers having active NCO groups are disclosed. The prepolymers are the reaction product of at least one polyisocyanate and a polyhydric component which comprises at least one dimer fatty derivative diol or diamine that is a natural oil based polyol or polyamine which includes the derivative of at least one dimer fatty acid. Polyurethane and polyurea elastomer obtained from the prepolymers are also disclosed. Also disclosed are methods of manufacturing polyurethane or polyurea treaded tires.Type: ApplicationFiled: March 16, 2010Publication date: January 26, 2012Applicant: Dow Global Technologies Inc.Inventors: Rui Xie, Syed A. Shah, Kandathil E. Verghese
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Patent number: 8097675Abstract: Isocyanate mixtures comprising: (a) NCO prepolymers having an NCO content of 1.5 to 18 wt. %; and (b) 1 to 40 wt. % of monomeric 2,2?-diisocyanatodiphenylmethane, based on the isocyanate mixture; wherein the isocyanate mixture has a total NCO content of from 2 to 22 wt. %; polyisocyanate polyaddition products prepared therefrom; and methods of making the same.Type: GrantFiled: March 26, 2009Date of Patent: January 17, 2012Assignees: Bayer MaterialScience AG, Polytex Sportbelage Produktions GmbHInventors: Zdenka Finder, Jens Krause, Friedhelm Faehling, Manfred Schmidt, Dirk Wegener
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Publication number: 20110306747Abstract: A polyester film containing a polyester resin having an intrinsic viscosity IV of from 0.73 to 0.9 dL/g in which the polyester film has a specific heat change at 85° C. to 135° C. (?Cp) of from 0.06 to 0.1 J/g, has an excellent weather resistance, a good planar surface state and a low thermal shrinkage.Type: ApplicationFiled: June 10, 2011Publication date: December 15, 2011Applicant: FUJIFILM CORPORATIONInventors: Kiyokazu HASHIMOTO, Yasutomo GOTO, Kenji KANO
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Patent number: 8058343Abstract: Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.Type: GrantFiled: May 14, 2007Date of Patent: November 15, 2011Assignee: Invista North America S.àr.l.Inventors: Hong Liu, Carmen A Covelli, Douglas K Farmer
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Patent number: 8022138Abstract: Aqueous polyurethane dispersion are disclosed where the dispersions contain from 5 to 70 weight percent polyurethane solids wherein the solids are obtained from at least one isocyanate terminated prepolymer prepared by reacting (a) a polyol or polyol blend having a mean average equivalent weight of 200 to 2,000; and (b) at least one polyisocyanate where the prepolymer is dispersed in water; optionally in the presence of (c) one or more stabilizers; or (d) one or more amine chain extenders or both; wherein the prepolymers have an isocyanate (NCO) content of from 2 to 40 weight percent and the polyol or polyol blend (a) contains at least 15 weight percent of a polyester based on a polycarboxylic acid or lactone component and a glycol component, wherein the glycol component contains isomers of 1,3- and 1,4-cyclohexanedimethanol (1,3-/1,4-CHDM) where the ratio of the 1,3-/1,4-isomers is from 35:65 to 65:35.Type: GrantFiled: May 17, 2007Date of Patent: September 20, 2011Assignee: Dow Global Technologies LLCInventors: John N. Argyropoulos, Debkumar Bhattacharjee
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Patent number: 7989074Abstract: A polymeric material may be prepared by reacting a mixture comprising an amino functional polyorganosiloxane, polyisocyanate, and polyol. The polyol may comprise a hydroxy-functional poly(meth)acrylate. The polymeric material may be used as a coating for a substrate and may inhibit fouling on a surface exposed to aquatic conditions.Type: GrantFiled: June 6, 2007Date of Patent: August 2, 2011Assignee: NDSU Research FoundationInventors: Dean C. Webster, Robert J. Pieper, Abdullah Ekin
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Patent number: 7964696Abstract: The present invention relates to chain extenders, processes for their preparation and their use in the preparation of biocompatible biodegradable polyurethanes and polyurethane ureas for biomedical applications such as stents, scaffolds for tissue engineering.Type: GrantFiled: September 20, 2006Date of Patent: June 21, 2011Assignee: Polynovo Biomaterials Pty LimitedInventors: Pathiraja Arachchillage Gunatillake, Timothy Graeme Moore, Raju Adhikari
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Publication number: 20110133122Abstract: The present invention discloses low viscosity aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising at 80 mole percent or greater of terephthalic acid; B) polyethylene glycol having a molecular weight from 150 to 1000; and C) a glycol different from the glycol of B); wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 40 to 75 weight percent of B); and 0 to 40 weight percent of C).Type: ApplicationFiled: August 4, 2009Publication date: June 9, 2011Applicant: DOW GLOBAL TECHNOLOGIES LLCInventor: Giuseppe Lista
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Publication number: 20110112270Abstract: The present invention relates generally to polyurethane elastomer compositions; and more preferably to thermo-plastic polyurethane elastomer compositions. In one embodiment, the polyurethane elastomer compositions of the present invention have low melting points while still behaving in an elastomeric manner. In one embodiment, the polyurethane elastomer compositions of the present invention are prepared from the reaction of a polyol component, a polyisocyanate component, and a diol chain extender. In another embodiment, the polyurethane elastomer compositions of the present invention are prepared from the reaction of a polyester polyol component, a methylene diphenyl diisocyanate (MDI) component, and a linear diol chain extender having either 5 carbons or 7 or more carbons between the OH groups of the diol.Type: ApplicationFiled: December 12, 2008Publication date: May 12, 2011Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventor: Donald A. Meltzer
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Patent number: 7935776Abstract: The present invention relates to a radiation curable and developable polyurethane which is characterized by having a carboxy group in its main chain and a acryloyl group in its side chain and comprising the following repeat units (I), (II), and (II) in a random arrangement: wherein R1, R2, R3, R4, and T are defined in the specification. The polyurethane has a weight molecular weight measured by GPC in a range of from 3,000 to 400,000; an acid value in a range of from 5 to 120 mgKOH/g. The present invention also relates to a radiation curable and developable composition containing the polyurethane.Type: GrantFiled: March 20, 2008Date of Patent: May 3, 2011Assignee: AGI CorporationInventors: Wei Hsiang Huang, Ying Jen Chen, Jui Ming Chang, Chun Hung Kuo, Hong Ye Lin, Li Chung Chang
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Patent number: 7935779Abstract: Disclosed are processes for synthesizing polyimides by a sequential self-repetitive reaction between poly (aryl carbodiimide) (p-CDI) or aryl diisocyanates with dianhydrides.Type: GrantFiled: March 7, 2008Date of Patent: May 3, 2011Assignee: Great Eastern Resins Industrial Co., Ltd.Inventors: Shenghong A. Dai, Jiang-Jen Lin, Kuan-Liang Wei