Patents Examined by Rabon Sergent
  • Flexible to rigid nanoporous polyurethane-acrylate (PUAC) type materials for structural and thermal insulation applications
    Patent number: 9550846
    Abstract: Novel urethane-acrylate (UAC) Star monomers and polyurethane-acrylate (PUAC) aerogel polymers derived therefrom are described herein, along with other novel, related monomers and polymers. Also described herein are processes for preparing the UAC Star monomers, the PUAC aerogel polymers, and the other related monomers and polymers. The PUAC and related polymers herein are useful in various applications including in structural and thermal insulation.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 24, 2017
    Assignee: The Curators of the University of Missouri
    Inventors: Nicholas Leventis, Chariklia Sotiriou-Leventis, Abhishek Bang
  • Thermoplastic polyurethanes with crystalline chain ends
    Patent number: 9546242
    Abstract: The present invention relates to novel thermoplastic polyurethane (TPU) compositions that have crystalline chain ends. The TPU compositions of the invention can provide improved resiliency, lower surface free energy, and/or reduced stickiness, while maintaining other desirable physical properties. The present invention also provides the described TPU compositions that are further grafted with vinyl alkoxysilane moieties allowing for crosslinked networks of the TPU compositions. The present invention also provides plasticizer-free, very soft TPU compositions without the processing difficulties often associated with such materials. The invention further provides means of reducing the surface tension of a TPU composition which can allow for improved blend compositions, and means of crosslinking the described TPU compositions.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: January 17, 2017
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Umit G. Makal, Bryce W. Steinmetz, Qiwei Lu, Roger W. Day
  • Semi-crystalline shape memory polymer and production method thereof
    Patent number: 9527947
    Abstract: A semi-crystalline shape memory polymer with transition temperature near body temperature and the production method thereof is disclosed. The shape memory polymer comprises a polymer chain which further comprises a plurality of prepolymers and a plurality of chain extenders bonding the prepolymers together in which each prepolymer further comprises a plurality of synthesized units. The above mentioned synthesized unit is obtained by reacting polymer diol with first diisocyanate. The obtained synthesized units are polymerized together with second diisocyanate and chain extender to form the shape memory polymer.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: December 27, 2016
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Yong Zhu, Jianping Han, Jing Lu
  • Method for preparing polythiol compound and polymeric composition for optical material comprising same
    Patent number: 9522879
    Abstract: The present invention relates to novel methods for preparing a polythiol compound for use in an optical material and polymerizable compositions including a polythiol compound prepared by the methods. According to the methods, a polythiol compound with uniform color, high purity and high quality can be prepared at reduced cost. The polymerizable compositions can be used to manufacture clear, transparent optical lenses with good heat resistance and excellent optical properties.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: December 20, 2016
    Assignee: KOC SOLUTION CO., LTD
    Inventors: Dong Gyu Jang, Soo Gyun Roh, Jong Hyo Kim
  • Process for preparing isocyanate homopolymers containing uretdione groups
    Patent number: 9518142
    Abstract: The present invention relates to a process for preparing isocyanate homopolymers containing uretdione groups, in which the phosphinoboron compound of formula (I) are used as catalysts to catalyze the homopolymerization reaction of raw isocyanates, thereby obtaining a solution of isocyanate homopolymers having uretdione groups, then separating the solution and thus obtaining the isocyanate homopolymers containing uretdione groups. The isocyanate homopolymers containing uretdione groups prepared by this process have a high amount of the uretdione groups, wherein the dependence of the amount on the conversion rate of raw isocyanates is significantly ameliorated, with low chromaticities.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: December 13, 2016
    Assignee: Wanhua Chemical Group Co., Ltd.
    Inventor: Lidong Sun
  • Cure-on-demand moisture-curable urethane-containing fuel resistant prepolymers and compositions thereof
    Patent number: 9518197
    Abstract: Cure-on-demand, moisture-curable, urethane-containing prepolymers having urethanes incorporated into a sulfur-containing prepolymer backbone and compositions thereof for use in sealant applications are disclosed. The cure-on-demand moisture-curable urethane-containing prepolymers are terminated with polyalkoxysilyl groups. The compositions contain a controlled-release moisture cure catalyst. Compositions containing the prepolymers provide cured sealants exhibiting improved tensile strength.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 13, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin
  • Isocyanate-containing prepolymer and method for making the same
    Patent number: 9505871
    Abstract: The invention relates to an isocyanate-containing prepolymer obtainable by reacting at least one isocyanate with at least one first compound selected from the group comprising monohydric alcohols, thiols and secondary amines; wherein the ratio of the NCO value of the isocyanate-containing prepolymer, to the OH, SH or NH value, of said monohydric alcohol, thiol or secondary amine respectively ranges from 0.0005 to 1.0000 and wherein said at least one first compound is present in a total amount of at least 40% by weight based on the total weight of the isocyanate-containing prepolymer.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: November 29, 2016
    Assignee: Huntsman International LLC
    Inventors: Wesley Verbeke, Dimitri Leroy
  • Polyimide precursor, polyimide, flexible substrate prepared therewith, color filter and production method thereof, and flexible display device
    Patent number: 9493614
    Abstract: The present invention is based on a polyimide precursor having unit structures represented by general formula (1) and unit structures represented by general formula (2), provides a polyimide precursor for which film whitening, cracking and bubbling do not occur regardless of film baking conditions, and provides a flexible TFT array, a flexible color filter, and a flexible substrate with a gas barrier layer using the polyimide precursor, and a flexible display device, etc. using same. (In general formulas (1) and (2), X1-X4 each independently represents a hydrogen atom, C1 to C10 monovalent organic group or C1 to C10 monovalent alkylsilyl group. R1 is represented by general formula (3) and R2 is represented by general formula (4).) (In general formula (4), R3 and R4 each independently represents a C1 to C10 monovalent organic group.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 15, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Yukari Jo, Masao Tomikawa
  • Method for producing ?-phthalate polyester polyols with low cyclic ester content
    Patent number: 9487467
    Abstract: 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-methyl-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: Grant
    Filed: March 7, 2012
    Date of Patent: November 8, 2016
    Assignee: Stepan Company
    Inventors: Douglas Hillshafer, Andrew Guo
  • Porous polyisocyanurates having rigid linker groups
    Patent number: 9481758
    Abstract: The invention relates to a polyisocyanurate comprising isocyanurate rings linked by linker groups coupled to the nitrogen atoms of said rings. The polyisocyanurate may be microporous or mesoporous or both microporous and mesoporous.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: November 1, 2016
    Assignee: Agency for Science, Technology & Research
    Inventors: Yugen Zhang, Jackie Y. Ying, Siti Nurhanna Binte Riduan
  • Polymerizable composition
    Patent number: 9482787
    Abstract: The polymerizable composition of the present invention contains a ketone compound including one or more carbonyl groups, at least one kind of isocyanate compounds and at least one kind of thiol compounds.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: November 1, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Nobuo Kawato, Toshiya Hashimoto, Koya Kojima
  • Oxazolidone ring containing adducts
    Patent number: 9481757
    Abstract: 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: Grant
    Filed: November 11, 2014
    Date of Patent: November 1, 2016
    Assignee: Blue Cube IP LLC
    Inventors: Joseph Gan, Emile C. Trottier
  • 1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens
    Patent number: 9477012
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 25, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoshi Yamasaki, Hirokazu Morita, Goro Kuwamura, Daisuke Nishiguchi, Toshihiko Nakagawa, Daisuke Hasegawa, Tetsuya Hamada, Shinji Kiyono, Takeshi Fukuda, Kazuhiro Kosumi, Hidetaka Tsukada, Kenichi Goto, Shinsuke Ito, Naoyuki Kakinuma
  • 1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens
    Patent number: 9475903
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 25, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoshi Yamasaki, Hirokazu Morita, Goro Kuwamura, Daisuke Nishiguchi, Toshihiko Nakagawa, Daisuke Hasegawa, Tetsuya Hamada, Shinji Kiyono, Takeshi Fukuda, Kazuhiro Kosumi, Hidetaka Tsukada, Kenichi Goto, Shinsuke Ito, Naoyuki Kakinuma
  • Method for the preparation of polyesters
    Patent number: 9464164
    Abstract: Disclosed is a method for preparing polyesters, comprising reacting polyols with carboxylic acids and, optionally, a catalyst, wherein the polyols bear at least two hydroxyl groups, wherein, at least one of said hydroxyl group is bound to an aliphatic carbon atom and wherein the polyols comprise one or more compounds of the formula (I) or (II), ?where ?n is 1, 2, 3 or 4, ?m is 1, 2 or 3, ?p is 2, ?Q is sulphur or C1-C4-alkylene, and ?the radicals R1 are each, independently of any other radicals R1 present, C1-C8-alkyl or Ci-C8-alkoxy, where at least one ortho position of the two phenyl rings in the formula (II) or the phenyl ring in the formula (I) must be substituted by a secondary or tertiary radical.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: October 11, 2016
    Assignee: LANXESS Deutschland GmbH
    Inventor: Lutz Heuer
  • Method for producing a skin layer of a flexible, elastomeric, thermoset, phase-separated polyurethane material
    Patent number: 9464156
    Abstract: The thermoset, phase-separated polyurethane material of the flexible skin layer is produced from a reactive mixture which is made of one or more isocyanate compounds and isocyanate reactive compounds which include one or more polyol compounds, flexibilizers, chain extenders and/or crosslinkers and amine-initiators. Apart from at least one crosslinking amine-initiator, these amine-initiators further include at least one extender amine-initiator.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 11, 2016
    Assignee: RECTICEL AUTOMOBILSYSTEME GMBH
    Inventors: Koen Vanlandschoot, Jurgen Mispelon, Bart Haelterman, Geert Snellings
  • Polyurethane dispersions and methods of making and using same
    Patent number: 9458354
    Abstract: The presently disclosed and claimed inventive concept(s) relates generally to polyethylene terephthalate (“PET”) polymers, digested oligomeric derivatives of PET (“dPET”), functionalized oligomeric derivatives of dPET (“dfPET”), and polyurethane dispersions (“PUD”) made from or incorporating dfPET therein.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: October 4, 2016
    Assignee: Resinate Technologies, Inc.
    Inventors: Kristopher M. Felice, Adam W. Emerson, George F. Willard, Eric W. Uffman, Albert C. Lee
  • Spandex from high molecular weight poly (tetramethylene-co-ethyleneether) glycols
    Patent number: 9441314
    Abstract: The invention provides polyurethaneurea compositions comprising poly(tetramethylene-co-ethyleneether) glycol having high number average molecular weight, from about 1900 to about 4000 Dalton. The invention further relates to the use of high number average molecular weight poly(tetramethylene-co-ethyleneether) glycol as the soft segment base material in spandex compositions. The invention also relates to new polyurethane compositions comprising poly(tetramethylene-co-ethyleneether) glycols with such high number average molecular weight, from about 1900 to about 4000 Dalton, and their use in spandex.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: September 13, 2016
    Assignee: INVISTA North America S.a.r.l.
    Inventors: Charles F. Palmer, Jr., James M. Lambert
  • Carbodiimide-containing compositions and method for the production and use thereof
    Patent number: 9434807
    Abstract: Carbodiimide containing compositions include diilsocyenates, polyols, and liquid carbodiimide of the formula where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R5 are each independently C1-C3-alkyl.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: September 6, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Martina Hauck
  • Two-part polyurethanes based on hyperbranched polymers
    Patent number: 9428669
    Abstract: A two-part polyurethane composition including a first pack and a second pack. The first pack includes at least one hyperbranched copolymer having OH groups and which is prepared from at least one or more monomer(s) having at least two unsaturated C—C bonds and one or more monomer(s) having one unsaturated C—C bond and one hydroxyl group in the presence of a cobalt (II) complex. The second pack comprises at least one polyisocyanate. Disclosed is a two-part polyurethane composition which has low viscosity, long pot life, fast cure, excellent weathering and UV resistance and which is suitable for use as a coating.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 30, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Shuyuan Liu, Neil Carter, Len Daniels