Patents Examined by Michael L Leonard
  • Patent number: 11827816
    Abstract: An adhesive composition comprising a polyurethane and a cationic polymeric dopant or a polymerizable cationic dopant may be used to form one or more adhesive layers of electro-optic assemblies. They enable improved electro-optic performance of the corresponding electro-optic devices even at low temperatures.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 28, 2023
    Assignee: E Ink Corporation
    Inventors: Eugene Bzowej, Jonathan Kim Nguyen, David Darrell Miller
  • Patent number: 11820926
    Abstract: Disclosed is an adhesive formulation that, when stimulated by a defeatable stimulation, reduces an adhesive bonding force of the adhesive formulation and defeats the adhesive formulation. The adhesive formulation having (i) programmable linkages made from Diels-Alder adducts and (ii) a concentration of diene traps. The Diels-Alder adducts may be furan-maleimide, and the diene traps may be (i) latent alkenes and (ii) selected from functional groups that will create irreversible reations with furan. The adhesive formulation may be capable of being applied as a coating, and the adhesive formulation may be capable of being extruded. The adhesive formulation may have a bonding temperature between 75 and 120° C. And the defeatable stimulation could, for example, be a temperature above 130° C. The adhesive formulation also may contain several types of programmable linkages and diene traps.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: November 21, 2023
    Assignee: Geisys Ventures, LLC
    Inventors: Kristoffer K Stokes, Philip J. Costanzo
  • Patent number: 11820853
    Abstract: Disclosed is an impact-resistant and aging-resistant reflective plastic applied to an automobile, which is prepared by copolymerizing of polyether polyol, 4,4,4-triphenylmethane triisocyanate and a benzimidazole derivative modified ZnS-mesoporous silica composite, the benzimidazole derivative modified ZnS-mesoporous silica composite is a ZnS-mesoporous silica composite modified by an anti-aging agent and a silane coupling agent KH-560, the ZnS-mesoporous silica is obtained by mixing an amphoteric surfactant, zinc chloride, and ?-aminopropyltrimethoxysilane uniformly, then reacting in ethyl orthosilicate, and calcining with hydrogen sulfide. In the present disclosure, by dispersing zinc sulfide in the pores of mesoporous carbon dioxide, chemical grafting 2-(2-hydroxy-5-aminophenyl)benzimidazole as a bridge onto isocyanate, and then polymerizing into polyurethane, which can improve the reflective performance and aging resistance of polyurethane, and improve the abrasion resistance and impact resistance.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: November 21, 2023
    Inventors: Zhicheng Cheng, Yong Cheng, Jianping Xu
  • Patent number: 11807754
    Abstract: A thermosetting urethane resin composition having excellent self-healing properties, antifouling properties, and elongation, a film including a curable coating of the thermosetting urethane resin composition, and a product including the film are provided. The thermosetting urethane resin composition contains a main agent containing a urethane prepolymer and an organic solvent and a curing agent. The urethane prepolymer contains a composition containing a polyol, a polyisocyanate, and a chain extender and has a hydroxy group at an end. The polyol contains a polyol having no aromatic ring. The polyol having no aromatic ring contains liquid and solid polycarbonate polyols. The polyisocyanate contains a polyisocyanate having no aromatic ring. The chain extender contains a low molecular weight triol. The curing agent contains triisocyanate. The percentage of the total amount of the low molecular weight triol and the triisocyanate is 10 mass % or higher and 35 mass % or lower.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: November 7, 2023
    Assignee: DIC Corporation
    Inventors: Daichi Higuchi, Yuichiro Shiba
  • Patent number: 11807707
    Abstract: Polyurethane prepolymers having non-linear short chain diols and/or soft diisocyanates incorporated into the backbone are used to provide cured polyurethane coatings having a high hard segment content and low haze. The polyurethane prepolymers can also be used to improve the dispersion of filler in cured polyurethane compositions having a high filler loading. Cured coatings prepared from the two-part polyurethane systems meet the requirements for aerospace applications.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 7, 2023
    Inventors: Razmik Boghossian, James Smith
  • Patent number: 11795260
    Abstract: The present invention relates to a bulk material comprising solid diisocyanate, especially naphthalene 1,5-diisocyanate or p-phenylene diisocyanate, to a process for production thereof, and to a process for preparing isocyanate prepolymers using the bulk material of the invention, to the isocyanate prepolymers themselves and to the use thereof for preparation of polyurethane elastomers, especially cast polyurethane elastomers.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 24, 2023
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Michael Merkel, Anna-Marie Zorn, Rainer Bellinghausen, Pascal Scherpian, Ralph Weber
  • Patent number: 11795262
    Abstract: The present invention relates to a polyether-modified polyisocyanate composition, which is obtainable by reacting a system containing the following components: a) a polyisocyanate having an isocyanate group functionality of 2-4.5; b) a polyoxyalkylene monoether alcohol; and c) optionally a catalyst; the polyoxyalkylene monoether alcohol has a number-average molecular weight of 900 g/mol-2000 g/mol and an oxypropylene group content of 45 wt. %-100 wt. %, relative to the total weight of the oxyalkylene group of the polyoxyalkylene monoether alcohol; the system has an equivalent ratio of isocyanate group to hydroxyl group of 5:1-110:1; the polyisocyanate composition has the following characteristics: i) the average isocyanate functionality is 1.8-4.1; ii) the isocyanate group content is 8-20 wt. %; and iii) the amount of the polyoxyalkylene monoether structure is greater than 10 wt. % and less than 50 wt. %, for characteristics ii) and iii), relative to the total weight of the polyisocyanate composition.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 24, 2023
    Assignee: Covestro Deutschland AG
    Inventors: Hans-Josef Laas, Raul Pires, Hao Liu, Yaguang Ma, Jianping Shen, Junchao Zheng
  • Patent number: 11795331
    Abstract: A curable photochromic composition can include: (a) a first component having a first compound with at least two active hydrogen-functional groups and an active hydrogen-functional group equivalent weight of at least 1000; (b) a second component having at least one of a polyisocyanate and a blocked polyisocyanate; and (c) at least one photochromic compound. The ratio of total isocyanate and blocked isocyanate group equivalents of the second component to total active hydrogen-functional group equivalents is at least 4:1.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: October 24, 2023
    Assignee: Transitions Optical, Inc.
    Inventors: Michael F. Haley, Linda K. Anderson, Anthony T. Gestrich, David B. Knowles, Stephen Robinson, Feng Wang, Elizabeth A. Zezinka
  • Patent number: 11795263
    Abstract: The present invention relates to compositions comprising a) 20-80% by weight, based on the total mass of constituents of the composition, of at least one sulfonic acid functionalized with at least one hydroxy and/or amino group and/or at least one sulfonic acid derivative functionalized with at least one hydroxy and/or amino group and b) 80-20% by weight, based on the total mass of constituents of the composition, of at least one compound having at least two OH groups, a method for the preparation thereof and use thereof.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: October 24, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Emmanouil Spyrou, Iris Brückner, Judith Schoder
  • Patent number: 11787896
    Abstract: The present disclosure discloses a preparation method of an ultraviolet (UV)-resistant and transparent lignin-based polyurethane (PU) elastomer. During the synthesis process, natural lignin-based polyols are directly used as an end-capping agent, isophorone diisocyanate and 2,2-dimethylolbutyric acid are used as a hard segment and polyether chain polyols are used as a soft segment, to synthesize a PU elastomer with a transparent brown appearance, excellent high elasticity and elastic recovery performance, as well as excellent mechanical properties, excellent UV resistance and repeatable processability. The lignin-based PU elastomer has a simple preparation process, and has great potential values for use in the fields such as PU elastomer film, fabric coating, and elastic fiber and biomass polymer materials.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: October 17, 2023
    Inventors: Chaoxia Wang, Xinxiang Li, Yunjie Yin
  • Patent number: 11780951
    Abstract: The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4?-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 10, 2023
    Assignee: Lanzhou Institute of Chemical Physics
    Inventors: Xinrui Zhang, Xiaoyue Wang, Zenghui Yang, Yaoming Zhang, Qihua Wang, Tingmei Wang
  • Patent number: 11772230
    Abstract: The present invention provides CMP polishing pads or layers having a unfilled Shore D (2 second) hardness of from 57-77 or a filled Shore D (2 second) hardness of from 18-50, made from a two-component reaction mixture of (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer having an unreacted isocyanate (NCO) concentration of from 18 to 47 wt. %, based on the total solids weight of the aromatic isocyanate component, and (ii) a liquid polyol component including one or more curatives selected from the group of amines defined by Formulas (I) and (II).
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 3, 2023
    Assignee: Rohm and Haas Electronic Materials CMP Holdings Inc.
    Inventors: Jing Ren, Kwadwo Tettey, Bryan E. Barton
  • Patent number: 11773202
    Abstract: Provided is a curable composition including a urethanization reaction product of a branched polyolefin diol; at least one selected from an isocyanurate product, an adduct product, and a biuret product, of an aliphatic diisocyanate having 6 to 10 total carbon atoms; and a hydroxy saturated C1 to C4 alkyl (meth)acrylate. Also provided are a method for producing the curable composition, and a specific curable compound included in the curable composition.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: October 3, 2023
    Inventors: Ryuji Kawamura, Hirofumi Fujii
  • Patent number: 11766089
    Abstract: A composition contains a thermoplastic polyurethane (TPU-1), obtained or obtainable by reaction of an isocyanate composition (IZ) containing MDI with a polyol composition (PZ), and hollow glass microspheres. The polyol composition (PZ) contains at least one polyol (P1) selected from polytetrahydrofurans having an average molecular weight Mn in the range from 900 to 2,000 g/mol. The polyol composition (PZ) also contains a chain extender (KV1), selected from 1,2-ethandiol, 1,3-propanediol, 1,4-butanediol and 1,6-hexanediol. Ski shoes, preferably ski boots, particularly preferably the outer shell of a ski boot, can be based on such a thermoplastic polyurethane. Corresponding processes can be used for producing ski shoes.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: September 26, 2023
    Assignee: BASF SE
    Inventors: Oliver Steffen Henze, Denis Bouvier
  • Patent number: 11760828
    Abstract: The present invention relates to a two-component system comprising a component A) comprising at least one polymeric polyol which has an OH content of ?4.5 wt %, based on the total solids content of the polymeric polyol, and a component B) comprising at least one polyisocyanate which has a number average isocyanate group functionality of ?4.0 to ?10.0, based on the total solids content of the polyisocyanate, a fraction of ?25 wt %, based on the total solids content of the polyisocyanate, of oligomers containing isocyanate groups and having a number-average molecular weight of ?780 g/mol, and an isocyanurate group fraction of ?5 mol % to ?70 mol %, based on the total amount of isocyanurate groups and allophanate groups in the polyisocyanate. The invention further relates to a method for producing a coating on a substrate, to the coating obtainable by this method, and to the coated substrate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 19, 2023
    Assignee: Covestro Deutschland AG
    Inventors: Christoph Irle, Dieter Mager, Qinglan Liu, Limin Cheng
  • Patent number: 11753494
    Abstract: The present disclosure provides a liquid-state reactive polyurethane adhesive, which includes a polyurethane prepolymer. The polyurethane prepolymer is blocked by an isocyanate group, and the polyurethane prepolymer is obtained by a polymerization reaction, a reactive monomer of the polymerization reaction includes a polyisocyanate, a polyol, a stabilizer, a catalyst and a hydrophobic filler. A functionality of the polyisocyanate is 2.4 to 3. A molecular weight of the polyol is 1000 to 8000, and the polyol has hydrolysis resistance. The stabilizer has a structure represented by formula (I). The catalyst has a structure represented by formula (II). Formula (I) and formula (II) are as defined in the specification.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: September 12, 2023
    Inventors: Shih-Wei Liu, Pin-Jung Chen, Kuo-Kai Liao
  • Patent number: 11746083
    Abstract: A compound, a resin composition and a laminated substrate thereof are provided. The compound has a structure represented by Formula (I) wherein A1 is C24-48 alkylene group, C24-48 alkenylene group, C24-48 alkynylene group, C24-48 alicyclic alkylene group, C24-48 alicyclic alkenylene group, or C24-48 alicyclic alkynylene group. A2 is C2-12 alkylene group, C6-C25 arylene group with two reactive groups, C4-8 cycloalkylene group, C5-25 heteroarylene group, divalent C7-C25 alkylaryl group, divalent C7-25 acylaryl group, divalent C6-25 aryl ether group, or divalent C7-25 acyloxyaryl group; and, n?1.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: September 5, 2023
    Inventors: Jyh-Long Jeng, Jeng-Yu Tsai, Wei-Ta Yang
  • Patent number: 11732084
    Abstract: Hydrogels are provided that include an antimicrobial agent and a cross-linkable urethane-based polymer (CUP). Such hydrogels may be used for the controlled-release of antimicrobial agents as well as in the manufacturing of wound dressings. Wound dressings are provided that comprise a hydrogel as defined herein.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: August 22, 2023
    Inventors: Arn Mignon, Tom Gheysens, Sandra Van Vlierberghe, Peter Dubruel
  • Patent number: 11725127
    Abstract: A hot melt moisture cure adhesive composition that includes a polyurethane prepolymer that includes the reaction product of diisocyanate, a polyester triol first polyol, a crystalline polyester second polyol, and a third polyol different from the first and second polyols.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 15, 2023
    Assignee: H.B. Fuller Company
    Inventor: Marietta B. Helmeke
  • Patent number: 11718766
    Abstract: The present invention provides alkyl substituted polysaccharide compositions and methods of repairing substrates involving use of the alkyl substituted polysaccharide compositions.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: August 8, 2023
    Assignee: Clemson University
    Inventors: Marek W. Urban, Ying Yang