Abstract: A composition and a method for preparing a polymer composite article. The composition comprises (A) a filler in an amount of from 10 to 90 wt. %. The composition also comprises (B) a polymer in an amount of from 10 to 90 wt. %, wherein the (B) polymer comprises a polyvinyl. Further, the composition comprises (C) an organopolysiloxane in an amount of from greater than 0 to 10 wt. %; the (C) organopolysiloxane having at least one silicon-bonded hydroxyl group and a viscosity of from 1,000 to 60,000 mPa·s at 25° C. The ranges for components (A)-(C) are based on the total weight of components (A), (B) and (C) in the composition.
Type:
Grant
Filed:
February 1, 2019
Date of Patent:
August 13, 2024
Assignees:
DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
Inventors:
Keith Bruce, Igor Chorvath, Marc-Andre Courtemanche, Jon V. Degroot, Jr., Sean Gaal, Craig Gross, Hailan Guo, James Keenihan, Shawn Mealey, Scott Miller, Tom Parsons, Steven R. Rapacki, Andrew Schlader, Cristina Serrat, Lauren Tonge
Abstract: The present invention relates to a transdermal therapeutic system for the transdermal administration of guanfacine comprising a guanfacine-containing layer structure, said guanfacine-containing layer structure comprising: A) a backing layer; and B) a guanfacine-containing layer; wherein the transdermal therapeutic system comprises at least one silicone acrylic hybrid polymer.
Abstract: A method for producing an optical silicone assembly is disclosed. The method comprises the steps of: i) treating a surface of a substrate with an optically clear silicone adhesive composition; ii) placing the substrate obtained by step i) into a mold; iii-a) injecting an optically clear moldable silicone composition into the mold, and/or iii-b) overmolding the optically clear moldable silicone composition onto the substrate; and then iv) heating the optically clear moldable silicone composition to form the optical silicone assembly. The optical silicone assembly produced by the method of this disclosure is characterized by excellent adhesion of an optical silicone product to various types of substrates.
Type:
Grant
Filed:
September 10, 2019
Date of Patent:
July 23, 2024
Assignee:
DOW SILICONES CORPORATION
Inventors:
Martijn Beukema, Thierry Cooremans, François De Buyl, Kevin Van Tiggelen
Abstract: A method of making a collection of polymer particles comprising (A) performing free radical polymerization (A) on an emulsion (E1) that comprises a collection of droplets dispersed in an aqueous medium, wherein the droplets comprise (i) one or more Si-containing monomers; (ii) one or more monovinyl acrylic monomers; and (iii) one or more graftlinkers that have no silicon atoms; to form a dispersion (D1) of core polymer particles in the aqueous medium; (B) in the presence of the dispersion (D1) of core polymer particles, performing aqueous emulsion polymerization (B) on one or more acrylic monomers.
Type:
Grant
Filed:
July 26, 2019
Date of Patent:
July 23, 2024
Assignees:
Dow Silicones Corporation, Rohm and Haas Company
Inventors:
Yang Cheng, Morris Wills, Hailan Guo, Nanguo Liu
Abstract: An aqueous emulsion comprising particles having an average volume particle size (Dv 50) of 1 to 10 pm wherein the particles comprise an interpenetrating polymer network including from 90 to 99 wt % silicone gum and 1 to 10 wt % of crosslinked organic polymer, methods for making such aqueous emulsions, polyurethane coating compositions including such interpenetrating polymer networks, methods of preparing such polyurethane coating compositions, and their use in treating leather.
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:
May 16, 2022
Date of Patent:
July 9, 2024
Assignees:
Rohm and Haas Company, Dow Silicones Corporation
Inventors:
Ibrahim Eryazici, Joseph Grant, Joshua M. Katzenstein, Yihan Liu, Edwin A. Nungesser, Brett L. Zimmerman
Abstract: Provided herein is a water-based hybrid pressure sensitive adhesive composition and a method of producing the same. The composition comprises: (A) 100 parts by mass of a silicone pressure sensitive adhesive; (B) 5 to 80 parts by mass of an acrylic pressure sensitive adhesive; (C) water in a sufficient amount to emulsify or disperse components (A) and (B) in component (C); and (D) 0.1 to 10 parts by mass of an amino-functional alkoxysilane compound, a hydrolysate thereof, or a hydrolyzed condensate thereof. Components (A) and (B) are emulsified or dispersed in component (C). The composition can be cured to form a pressure sensitive adhesive exhibiting good peel adhesion and low silicone migration.
Type:
Grant
Filed:
June 12, 2018
Date of Patent:
July 2, 2024
Assignees:
DOW SILICONES CORPORATION, ROHM AND HAAS COMPANY
Inventors:
Ruihua Lu, Li Ding, Zhaohui Qu, Yan Zhou, Zhihua Liu, Bochi Xu, Rongrong Fan
Abstract: A composition contains an aryl-functionalized polysiloxane and quaternary ammonium compound, where the quaternary ammonium compound has an anion selected from a group consisting of: halides, salicylate, octanoate, acetate, dihydrogen citrate, maleate, hydrogenglutaric acid anion, and bistartaric acid anion.
Type:
Grant
Filed:
August 19, 2019
Date of Patent:
July 2, 2024
Assignee:
Dow Silicones Corporation
Inventors:
Shengqing Xu, Steven Swier, Martijn A. Beukema
Abstract: A bonded multilayer article including: (a) at least one first layer of a silicone-containing rubber substrate material bonded to (b) at least one second layer of a substrate material bondable to the first layer; wherein at least a portion of the surface of the first layer is activated for adhesion to increase the bond strength of the first layer to a second layer such that the bond strength of the first layer bonded to the second layer is increased; and a process for producing the above bonded multilayer article.
Type:
Grant
Filed:
December 18, 2019
Date of Patent:
July 2, 2024
Assignees:
Dow Global Technologies LLC, Dow Silicones Corporation
Inventors:
Ni Yan, Bhawesh Kumar, Brian J. Swanton, Lauren Tonge, Christophe R. Laroche, Mark Brown, II
Abstract: A soap bar is provided, comprising: a soap; water; a cellulose derivative selected from the group consisting of a hydroxyalkyl alkyl cellulose; and an additive selected from the group consisting of a psyllium, a sodium silicate and mixtures thereof; wherein the soap bar is a solid.
Type:
Grant
Filed:
August 20, 2021
Date of Patent:
June 25, 2024
Assignees:
Dow Global Technologies LLC, Dow Silicones Corporation
Abstract: A composition for preparing a foam comprises (A) a polyol, (B) a pre-mixture comprising (B1) a silicone resin at least partially solubilized in (B2) a physical blowing agent capable of at least partially solubilizing the silicone resin (B1), (C) a polyisocyanate, and (D) a catalyst. The silicone resin (B1) includes at least 20 mol % (R13SiO1/2) siloxy units and at least 40 mol % of (SiO4/2) siloxy units, each based on the total moles of siloxy units present in the silicone resin (B1), with the proviso that the combined amount of (R13SiO1/2) and (SiO4/2) siloxy units is at least 85 mol % based on the total moles of siloxy units present in the silicone resin (B1), where each R1 is independently a substituted or unsubstituted hydrocarbyl group.
Type:
Application
Filed:
March 17, 2022
Publication date:
May 23, 2024
Applicants:
DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
Abstract: An elastomer composition including (a) an elastomer blend component; (b) at least one first odor-reducing component; and (c) at least one second odor-reducing component; the elastomer component (a) including a hydrogenated block copolymer, a propylene polymer, a maleic anhydride grafted polymer, a mineral oil, and a filler, and/or a nucleating agent. The elastomer composition can be particularly suitable for fabricating injection molded non-carpet vehicle flooring with a reduced amount of undesirable odor.
Type:
Grant
Filed:
May 29, 2019
Date of Patent:
May 21, 2024
Assignees:
Dow Global Technologies LLC, Dow Silicones Corporation
Abstract: The present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer. In particular, the present disclosure relates to cosmetic compositions comprising an uncured silicone based polymer; and at least one cosmetic ingredient, optionally in a cosmetically acceptable medium. The present disclosure also relates to preparation methods and uses of the cosmetic compositions.
Abstract: A networked silicone is disclosed. The networked silicone comprises crosslinked strands of hindered organosilicon compounds. A composition for preparing the networked silicone is also disclosed, and comprises (A) a hindered organosilicon compound, (B) a crosslinking compound, and optionally (C) a catalyst. Additionally, a method of preparing the networked silicone is disclosed, and comprises reacting the hindered organosilicon compound (A) and the crosslinking compound (B), optionally in the presence of the catalyst (C), to give the networked silicone. A reaction product comprising the networked silicone is also disclosed. The reaction product is prepared from the composition and/or in accordance with the method, and may be a cured product. Additionally, a composite article and a method of forming the same are disclosed. The composite article is formed by disposing a networked silicone composition on the substrate and curing the networked silicone composition, thereby preparing the composite article.
Abstract: The present invention relates to a paint composition comprising an aqueous dispersion of a) polymer particles having an average particle size in the range of from 80 nm to 500 nm; b) polymeric organic crosslinked microspheres having a particle size in the range of from 1 ?m to 20 ?m; c) polysiloxane particles having a particle size in the range of from 1 ?m to 30 ?m; d) a rheology modifier; e) an opacifying white pigment having a refractive index of >1.9; and f) less than 10 weight percent of a low Tg polyurethane. The composition of the present invention gives coatings with excellent burnish resistance.
Type:
Grant
Filed:
October 22, 2019
Date of Patent:
May 14, 2024
Assignees:
Rohm and Haas Company, Dow Silicones Corporation
Inventors:
James C. Bohling, Ibrahim Eryazici, Bradley K. Hageman, Philip R. Harsh, Yihan Liu, Partha S. Majumdar, Edwin A. Nungesser, Timothy A. Roggow, II
Abstract: A multistage polymer is provided, comprising: acrylate rich stage comprising: (a) structural units of monoethylenically unsaturated non-ionic, acrylate rich stage monomer selected from C1-22 alkyl (meth)acrylates and mixtures thereof; and (b) carbosiloxane rich stage, comprising: structural units of carbosiloxane monomer of formula (I), wherein a is 0 to 3; wherein d is 0 or 1; wherein R1 is selected from hydrogen, C1-10 alkyl group and aryl group; wherein R2 is selected from hydrogen and C1-10 alkyl group; wherein R8 is —O—Si(CH3)2—O—Si(CH3)3 group; wherein Y is selected from formula (II), (III) and (IV); wherein R4 and R6 are selected from hydrogen and methyl group; wherein R3 and R5 are a C1-10 alkylene group; wherein R7 is C1-10 alkyl group; wherein b is 0 to 4 and wherein c is 0 or 1.
Type:
Grant
Filed:
December 3, 2019
Date of Patent:
May 7, 2024
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company, Dow Silicones Corporation
Inventors:
Hilda G. Buss, Fanwen Zeng, Bryan L. McCulloch, Jodi Mecca, Ralph C. Even, Michaeleen L. Pacholski
Abstract: A process for removing metallic impurities from halogenated silicon compounds, such as chlorosilane monomers and/or chlorinated polysilanes is disclosed. The process involves treating a halogenated silicon compound with a tertiary amine and thereafter a suitable grade of activated carbon.
Type:
Grant
Filed:
August 10, 2020
Date of Patent:
May 7, 2024
Assignee:
Dow Silicones Corporation
Inventors:
Reza Hagh Panah, Michael Depierro, Barry Ketola
Abstract: An aqueous emulsion including a discontinuous oil phase comprising: a) a polyorganohydrogensiloxane, b) an amino-modified polyorganosiloxane comprising at least one amino group located at a terminal position and c) a blocked isocyanate.
Type:
Grant
Filed:
May 6, 2022
Date of Patent:
May 7, 2024
Assignee:
Dow Silicones Corporation
Inventors:
Shuang Qin, Jordan Stracke, Shawn Mealey, Jongwook Choi
Abstract: Disclosed is a method for preparing a nanoparticle composition. The method includes forming a nanoparticle aerosol in a low pressure reactor, wherein the aerosol comprises MX-functional nanoparticles entrained in a gas, where M is an independently selected Group IV element and X is a functional group independently selected from H and a halogen atom. The method further includes collecting the MX-functional nanoparticles of the aerosol in a capture fluid, where the capture fluid is in fluid communication with the low pressure reactor. The capture fluid includes a polar aprotic fluid immiscible with water and having a viscosity of from 5 to 200 centipoise at 25° C. The capture fluid further includes a functionalization compound miscible with the polar aprotic fluid, the functionalization compound comprising a functional group Y reactive with the functional group X of the MX-functional nanoparticles.
Type:
Grant
Filed:
March 30, 2020
Date of Patent:
May 7, 2024
Assignee:
Dow Silicones Corporation
Inventors:
James Allen Casey, Charles Serrano, David Lawrence Witker