Patents Examined by Margaret G Moore
  • Patent number: 11369114
    Abstract: Aqueous antimicrobial coating compositions are disclosed comprising at least one organosilane homopolymer, present as a distribution of polymer chain lengths, and optionally at least one amine. A method of preparing an antimicrobial coating comprises coating a surface with the aqueous antimicrobial coating composition and allowing the composition to dry into a film that exhibits residual antimicrobial efficacy against microorganisms even after mechanical abrasion of the coating. The organosilane homopolymer may comprise only 3-aminopropylsilanetriol homopolymer, mixtures of 3-aminopropylsilanetriol homopolymer, 3-chloropropylsilanetriol homopolymer and 3-(trihydroxysilyl)propyl dimethyloctadecyl ammonium chloride homopolymer, or any one of various unique organosilane homopolymers having multiple amine functionality.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: June 28, 2022
    Assignee: Allied Bioscience, Inc.
    Inventors: Gavri Grossman, Jie Fang, Parham Asgari, Maha El-Sayed, Craig Grossman, Daniel Moros
  • Patent number: 11370867
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of polymeric composite microspheres comprising an aqueous dispersion of polymeric composite microspheres that comprise a polysiloxane and a polymer, as defined herein, and a suspension polymerization process for making the composition. The composition is useful for making defect free coatings with a relatively low coefficient of friction.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: June 28, 2022
    Assignees: Rohm and Haas Company, Dow Silicones Corporation
    Inventors: Ibrahim Eryazici, Joseph Grant, Joshua M. Katzenstein, Yihan Liu, Edwin A. Nungesser, Brett L. Zimmerman
  • Patent number: 11365320
    Abstract: Disclosed is a liquid polymerizable composition including a chain-growth polymerization dispersing monomer, a step-growth polymerization monomer system and inorganic nanoparticles homogeneously dispersed in the monomers, as well as its use for the preparation of a transparent polymeric material having a high refractive index and low haze and its use in the optical field.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 21, 2022
    Assignees: Essilor International, Nikon Corporation
    Inventors: Akira Ishikawa, Ludovic Ferrigno, Akiko Miyakawa
  • Patent number: 11364161
    Abstract: The invention relates to a curable composition, containing (A) at least one polyorganosiloxane, which has at least one hydroxy group bound to a silicon atom, (B) at least one silane of the formula (1): Si(R1)m(R2)n(R3)4?(m+n)??(1), as defined herein, (C) at least one aminosilane, and (D) at least one tin compound, wherein the composition is free of epoxysilane and the molar ratio of the aminosilane to the tin compound is 1:1 to 50:1, as well as to the preparation and use thereof.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: June 21, 2022
    Assignees: Henkel AG & Co. KGaA, Nitrochemie Aschau GmbH
    Inventors: Andrea Gutacker, Johann Klein, Helene Boudet, Adrian Duracu, Sebastian Kapusta
  • Patent number: 11345783
    Abstract: Equilibrated trifluoromethanesulfonic acid-acidified ?,?-diacetoxypolydimethylsiloxanes, processes for the production thereof and SiOC-bonded, linear polydimethylsiloxane-polyoxyalkylene block copolymers of the structure type ABA and a process for the production thereof are described, wherein the production of SiOC-bonded, linear polydimethylsiloxane-polyoxyalkylene block copolymers of the structure type ABA is effected by reacting trifluoromethanesulfonic acid-acidified acetoxysiloxane with polyetherols optionally in the presence of bases and optionally in the presence of an inert solvent.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: May 31, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Wilfried Knott, Horst Dudzik, Frauke Henning
  • Patent number: 11344862
    Abstract: A method of coating at least one silica capillary using a novel dual ligand sol-gel sorbent and method of manufacture of such sorbent is provided herein. The dual ligand sol-gel sorbent provides superior enrichment effects through simultaneous exploitation of superhydrophobicity of one of the ligands and the ability of the other ligand to undergo ?-? interaction with hydrophobic aromatic analytes. Sorbent performance is enhanced both in terms of analyte enrichment and sorbent stability, such as pH stability and solvent stability.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: May 31, 2022
    Assignee: University of South Florida
    Inventors: Abdul John Malik, Emre Seyyal
  • Patent number: 11339252
    Abstract: A polysiloxazane compound including a repeating unit of the following general formula (1), and having a number average molecular weight of 500 to 100,000 as measured by gel permeation chromatography versus polystyrene standards, wherein R1 and R2 each independently represent a substituted or unsubstituted C1-C50 monovalent hydrocarbon group optionally containing a hetero atom, Xs each independently represent a methyl group, an oxygen atom, NH—SiX2, or (NH)(3-r)/2—SiR1R2r (R1 and R2 have the same meaning as provided above), or Xs are joined to one another to represent an oxygen atom, n is an integer of 0 to 8, when the number of NH—SiX2 is denoted by p, p satisfies 0?p/(2n+4)?0.5, r is an integer of 0, 1, or 2, and a and b are numbers satisfying 0<a?1, 0?b<1, and a+b=1.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: May 24, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masato Kawakami, Shotaro Aoki, Ayumu Kiyomori
  • Patent number: 11332303
    Abstract: A coating composition comprising epoxidized vegetable oil, an amine terminated polyamide and a silicone resin is disclosed. Substrates coated at least in part with such coatings are also disclosed.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: May 17, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Robert McVay, Christopher L. Most, Hannah Elizabeth Toomey, Sarah Cunningham
  • Patent number: 11332583
    Abstract: A polyolefin-polydiorganosiloxane block copolymer may be prepared by hydrosilylation reaction.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: May 17, 2022
    Assignees: Dow Silicones Corporation, Dow Global Technoloaies LLC
    Inventors: Steven Swier, Phillip Hustad, David Devore, Zachary Kean, Liam Spencer, Jordan Reddel, Bethany Neilson, John Bernard Horstman, Ken Kawamoto, Jerzy Klosin
  • Patent number: 11325923
    Abstract: Siloxanes are prepared by reacting: a compound A with a compound B or a compound A with a compound C or a compound B with a compound C or a compound C alone, in the presence of a compound D at ?40° C., wherein compound A is a silane or a siloxane having at least one silicon-bonded hydrogen atom, compound B is a silane or a siloxane having at least one silicon-bonded alkoxy moiety, compound C is a silane or a siloxane having at least one silicon-bonded hydrogen atom and at least one silicon-bonded alkoxy moiety, and compound D is a cationic Si(II) compound.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: May 10, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Elke Fritz-Langhals, Richard Weidner
  • Patent number: 11326026
    Abstract: Reversibly crosslinkable compositions are provided for forming removable crosslinked films. A reversibly crosslinkable composition may comprise entangled chains of a polysiloxane comprising pendant functional groups having formula —NH—(C?O)—X—COOH, wherein X is an alkyl group, an alkenyl group, or an aryl group; a plurality of inorganic oxide nanoparticles; and a solvent; wherein non-covalent bonds between the pendant functional groups and the inorganic oxide nanoparticles crosslink the entangled chains to form a polymeric matrix in the absence of the solvent, wherein the non-covalent bonds dissociate and the polymeric matrix collapses in the presence of water and heat.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 10, 2022
    Assignee: Xerox Corporation
    Inventor: Christina Resetco
  • Patent number: 11319414
    Abstract: Provided is a silicone polymer of the Formula (I): M1aM2bM3cD1dD2eD3fT1gT2hT3iQj.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 3, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Vinu Krishnan Appukuttan, Pranabesh Dutta, Sandeep Naik, Anubhav Saxena
  • Patent number: 11319413
    Abstract: This organopolysiloxane composition, when cured at room temperature by moisture in the atmosphere, provides a silicone rubber cured product having good self-adhesiveness to a magnesium alloy. The organopolysiloxane composition contains (A) an organopolysiloxane having a hydroxy group and/or a hydrolysable silyl group at both ends of the molecular chain, (B) an organic silicon compound other than (A) and (C), having at least three hydrolysable groups bonded to a silicon atom per molecule, and/or a partial hydrolysis-condensation product thereof, and (C) a silane coupling agent having a specific molecular structure having a carboxylic acid silyl ester bond. Furthermore, a novel compound, having an alkoxysilyl group and a carboxylic acid silyl ester group per molecule, can have improved adhesiveness/bonding properties with respect to a base material due to the effect of carboxylic acid after hydrolysis thereof.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 3, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akira Uta, Takafumi Sakamoto
  • Patent number: 11299628
    Abstract: Provided is an organopolysiloxane composition, comprising: (A) an organopolysiloxane having at least two silicon atom-bonded alkenyl groups in each molecule, (B) an organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms in each molecule, (C) a platinum catalyst, and (D) a specific isocyanide compound.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 12, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daisuke Noda, Koji Sakuta
  • Patent number: 11299629
    Abstract: A silane-modified polyphenylene ether resin and a preparation method thereof are provided. A polyphenylene ether resin having hydroxyl groups at both ends is reacted with a silane having at least one alkoxy group and at least one vinyl group at the end, so as to obtain the silane-modified polyphenylene ether resin with a vinyl group at the end.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: April 12, 2022
    Assignee: Prior Company Limited
    Inventors: Hong-Hsin Wu, Po-Cheng Chang, Ying-Chen Chen, Cheng-Hsin Tsai
  • Patent number: 11299592
    Abstract: Silicone resins are reproducibly prepared in a four step process in which alcohol recovered in a second step is recycled to the first step, and an aqueous phase recovered in the fourth step contains very little HCl, alcohol, or organopolysiloxane, and can be directed to waste treatment without any prior processing.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 12, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Klaus Kaeppler, Elfriede Thumser
  • Patent number: 11299658
    Abstract: Tiles are adhesively bonded to substrates such as kitchen or bathroom walls by a process in which a tile adhesive is used, the tile adhesive being a one component RTV-1 moisture-curable tile adhesives having properties superior to conventional cementitious and RTU tile adhesives, which contain at least one low viscosity alkoxysilyl-functional polymer, a silicone resin, an aminoalkyl-functional alkoxysilane or partial hydrolysate thereof, and in excess of 60 weight percent mineral filler, of which at least 50 weight percent is a non-reinforcing filler.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 12, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Daniel J. Mania, Jerry Havens
  • Patent number: 11292911
    Abstract: An aqueous composition contains N-benzyl-substituted N-(2-aminoethyl)-3-aminopropylsiloxane hydrochlorides, wherein the composition after storage for 6 weeks at 60° C. has a color number of ?1 Gardner, a content of methanol of ?0.5% by weight, an active substance content of ?60% by weight, and a content of water of ?40% to ?60% by weight, and wherein the components in the composition sum to 100% by weight.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 5, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Christian Waßmer, Tim Biggs, Julian Asal
  • Patent number: 11279804
    Abstract: Branched SiOC-linked polyethersiloxanes have the following formula (I) where R1 is an alkyl radical having 1 to 4 carbon atoms or a phenyl radical, but preferably 90% of the radicals R1 are methyl radicals; b has a value of from 1 to 10; a has a value of from 1 to 200, preferably 10 to 100, a value of from 3 to 70 when b is ?1 and ?4, or a value of from 3 to 30 when b is >4; and R2 denotes identical or different polyether radicals, but at least one radical R2 is a structural element radical of formula (II): where p=at least 2, preferably p=2-6, particularly preferably p=3.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: March 22, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Wilfried Knott, Horst Dudzik, Dagmar Windbiel, Philippe Favresse, Michael Fiedel, André Brötzmann, Frauke Henning, Jan Caßens, Michael Ferenz
  • Patent number: 11254849
    Abstract: A method for producing a polyorganosiloxane resin composition including: (a) mixing a thermally-conductive filler having a particle size distribution having a single peak, with a surface treatment agent containing a siloxane to form a mixture, and (b) mixing the mixture from step (a) with a polysiloxane resin.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 22, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Eiji Tanigawa, Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka