Patents Assigned to Dow Silicones Corporation
  • Patent number: 11214685
    Abstract: A curable organopolysiloxane composition is provided. The curable organopolysiloxane composition comprises: (A) a diorganopolysiloxane having at least two silicon-bonded alkenyl groups per molecule; (B) an organopolysiloxane resin; (C) a mixture of (C1) a diorganopolysiloxane endblocked with silicon-atom bonded hydrogen atoms at both molecular terminals and (C2) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms per molecule; (D) a polyether having at least one aliphatic unsaturated group per molecule; and (E) a hydrosilylation catalyst.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: January 4, 2022
    Assignee: DOW SILICONES CORPORATION
    Inventors: Lei Fang, Qi Chen, Qiang Huang, Yi Zhao
  • Patent number: 11207263
    Abstract: This invention relates to a cosmetic composition comprising: (A) a film forming composition that can produce a tack free surface comprising: (I) a hydrosilylation reaction product of: (a) a silicone resin having the formula: (R1R22SiO1/2)w(R1R2SiO2/2)x(R2SiO3/2)y(SiO4/2)z wherein R2 is a C1 to C10 hydrocarbon group free of aliphatic unsaturation, R1 is R2 or an alkenyl group, w is from 0.3 to 0.6, x is from 0.0 to 0.2, y is 0, z is from 0.4 to 0.7, w+x+y+z=1.0, and w+z is from 0.85 to 1.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 28, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Thomas Bekemeier, Patrick Fryfogle, Gary Wieber, Kimmai Nguyen, Zhi Li, Julie Cook, Jason Vogel
  • Patent number: 11208557
    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 is selected from polyolefins, polyamides, polyesters, or combinations thereof. 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: October 7, 2020
    Date of Patent: December 28, 2021
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Keith Bruce, Igor Chorvath, Marc-Andre Courtemanche, Jon V. Degroot, Jr., Sean Gaal, Craig Gross, James Keenihan, Shawn Mealey, Scott Miller, Tom Parsons, Andrew Schlader, Cristina Serrat, Lauren Tonge
  • Publication number: 20210395557
    Abstract: The present disclosure provides for an aqueous coating composition to coat and form a film on porous construction materials to help in controlling efflorescence in the porous construction materials. The aqueous coating composition includes a binder having an acrylic polymer in an acrylic polymer waterborne dispersion, wherein the acrylic polymer has a glass transition temperature (Tg) of 1° C. to 60° C.; and an alkoxy silane coalescing agent in a waterborne silane coalescing emulsion. The aqueous coating composition optionally further includes an additive selected from the group consisting of a pigment, a filler and combinations thereof. In one embodiment, the alkoxy silane coalescing agent provides the only coalescing agent for the acrylic polymer waterborne dispersion in the aqueous coating composition.
    Type: Application
    Filed: September 23, 2019
    Publication date: December 23, 2021
    Applicants: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Beatriz C. Ma, Jean-Paul Lecomte, Jouko Vyoerykkae, Sabrina Salvati
  • Patent number: 11203667
    Abstract: A liquid curable silicone elastomer composition is disclosed. The liquid curable silicone elastomer composition comprises an organopolysiloxane (A) containing at least two silicon-bonded alkenyl groups per molecule, an organopolysiloxane (B) containing at least three silicon-bonded hydrogen atoms per molecule, a platinum based catalyst (C), an inhibitor (D), and a silica filler (E). The organopolysiloxane (B) is a branched (or resinous) polymer, contains M siloxy units, and the at least three silicon-bonded hydrogen atoms are present on the M siloxy units. The inhibitor (D) is selected from the group consisting of acetylenic alcohols and their derivatives. The inhibitor (D) is present in the liquid curable silicone elastomer composition in an amount to provide a molar ratio—of the inhibitor (D) to platinum in the catalyst (C)—of from 150 to 900 (150:1 to 900:1).
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 21, 2021
    Assignee: DOW SILICONES CORPORATION
    Inventors: Patrick Beyer, Ivonne Hankammer, Hans Peter Wolf
  • Patent number: 11198800
    Abstract: A method of inverting the phase arrangement of the silicone phase and the acrylic phase in a silicone acrylic hybrid composition, the silicone acrylic hybrid composition comprising: a) a silicone acrylic hybrid pressure sensitive adhesive, and b) a solvent, wherein the phase arrangement of the silicone phase and the acrylic phase in the initial silicone acrylic hybrid composition forming a continuous external phase and a discontinuous internal phase is determined by the solvent, comprising the step of adding an activator to the silicone acrylic hybrid composition, wherein the activator a) is liquid at 20° C. and 1013 mbar, b) has a boiling point which is higher than the boiling point of the solvent and/or has a vapor pressure at 20° C.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 14, 2021
    Assignees: LTS LOHMANN Therapie-Systeme AG, DOW SILICONES CORPORATION
    Inventor: Marco Emgenbroich
  • Patent number: 11193051
    Abstract: A hot melt adhesive composition includes a polyolefin-polydiorganosiloxane block copolymer, a polydiorganosiloxane, and a polyorganosilicate resin. The hot melt adhesive composition is useful in electronic device assembly processes.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 7, 2021
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Steven Swier, Glenn Gordon, Zachary Kean, Michael Behr, John Bernard Horstman
  • Patent number: 11192354
    Abstract: A method of forming a three-dimensional (3D) article comprises the steps of I) printing a first heat-curable silicone composition with a 3D printer to form a layer, II) heating the layer to form an at least partially cured layer, III) printing a second heat-curable silicone composition on the at least partially cured layer with the 3D printer to form a subsequent layer, and IV) heating the subsequent layer to form an at least partially cured subsequent layer. Optionally, steps III) and IV) can be repeated with independently selected heat-curable silicone composition(s) for any additional layer(s) to form the 3D article. The first and second heat-curable silicone compositions may be the same as or different from one another.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 7, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Michael W. Backer, Zachary Milroy, Sara Schaubroeck, Hans Peter Wolf, Bizhong Zhu
  • Patent number: 11174420
    Abstract: A silicone pressure sensitive adhesive composition is curable to form a silicone pressure sensitive adhesive. The silicone pressure sensitive adhesive composition can be coated on a substrate and cured to form a protective film. The protective film can be adhered to an anti-fingerprint coating on display glass, such as cover glass for a smartphone.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: November 16, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Jingui Jiang, Zhihua Liu, Ruihua Lu, Qing Cao, Chengrong Zhu, Jiayin Zhu
  • Patent number: 11168181
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting crude reaction product is treated with a treating agent, and thereafter distilled to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 9, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • Patent number: 11168213
    Abstract: Disclosed is a two-component silicone composition, which can cure via moisture. The composition generally has improved cure speed while maintaining good storage stability.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 9, 2021
    Assignee: DOW SILICONES CORPORATION
    Inventors: Yanxia Huang, Yi Guo, Xu Chen
  • Patent number: 11168098
    Abstract: A method is useful for preparing alkylalkoxysilanes, such as alkylalkoxysilanes, particularly dimethyldimethoxysilane. The method includes heating at a temperature of 150° C. to 400° C., ingredients including an alkyl ether and carbon dioxide, and a source of silicon and catalyst. The carbon dioxide eliminates the need to add halogenated compounds during the method.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: November 9, 2021
    Assignee: Dow Silicones Corporation
    Inventors: John Roberts, Vladimir Pushkarev, Dimitris Katsoulis
  • Patent number: 11161939
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting reaction product is distilled, treated with a treating agent, and distilled again to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 2, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • Patent number: 11155711
    Abstract: A composition is disclosed, which comprises (I) an aryl component; (II) a methyl component; and (III) a hydrosilylation catalyst. The (I) aryl component comprises (A) an organopolysiloxane and (B) an organohydrogenpolysiloxane. Similarly, the (II) methyl component comprises (A) an organopolysiloxane and (B) an organohydrogenpolysiloxane. A method of preparing the composition is also disclosed. Further, a method of preparing an article, e.g. a light diffuser, and a lighting device comprising the light diffuser are disclosed. Finally, a method of diffusely transmitting light with the light diffuser is disclosed.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: October 26, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Donald Anthony Kadlec, Thomas Seldrum, Kevin Van Tiggelen
  • Publication number: 20210324187
    Abstract: Provided is a collection of polymer particles comprising (I) a plurality of acrylic particles (I) each comprising (a) an acrylic core polymer (Ia) comprising (i) polymerized units of one or more monovinyl acrylic monomers (Iai), (ii) polymerized units of one or more Si-free graftlinkers (Iaii), (b) a shell polymer (Ib), (II) a plurality of hybrid polymer particles (II), each comprising (a) a core polymer (IIa) comprising (i) polymerized units of one or more silicon-containing monomers (IIai); (ii) optionally, polymerized units of one or more monovinyl acrylic monomers (IIaii); and (iii) polymerized units of one or more Si-free graftlinkers (IIaiii); (b) a shell polymer (IIb) comprising polymerized units of one or more acrylic monomers (IIb).
    Type: Application
    Filed: July 26, 2019
    Publication date: October 21, 2021
    Applicants: Rohm and Haas Company, Dow Silicones Corporation
    Inventors: Morris Wills, Hailan Guo, Nanguo Liu, Jeffrey Rastello
  • Patent number: 11149175
    Abstract: A silicone pressure sensitive adhesive composition includes an alkenyl-terminated polydiorganosiloxane, a polyorganosilicate resin, a polyorganohydrogensiloxane crosslinker, a hydrosilylation reaction catalyst, a hydrosilylation reaction inhibitor, and a solvent. The composition cures to form a pressure sensitive adhesive with selective adhesion to different substrates, including urethane foam. The pressure sensitive adhesive composition, pressure sensitive adhesive, and urethane foam article including the pressure sensitive adhesive are useful in electronics applications for the protection of display devices.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Wonbum Jang, Bo Kyung Bona Kim, Yoonyoung Kim
  • Patent number: 11148121
    Abstract: A method and apparatus for removing a volatile component from a mixture are disclosed. The method and apparatus employ a crosslinked elastomer with a glass transition temperature ?+25° C. as the sorbent.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 19, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Dongchan Ahn, Aaron Greiner, James Thompson
  • Patent number: 11142639
    Abstract: A polyurethane-polyorganosiloxane copolymer and methods for its preparation are disclosed. The copolymer has polyfunctional end groups, which render it crosslinkable by multiple crosslinking reactions.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: October 12, 2021
    Assignee: Dow Silicones Corporation
    Inventors: Bizhong Zhu, Martin Grasmann, Vinita Pandit
  • Publication number: 20210309807
    Abstract: A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting crude reaction product is treated with a treating agent, and thereafter distilled to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 7, 2021
    Applicant: Dow Silicones Corporation
    Inventors: Xiaoyuan Zhou, Reza Haghpanah, Aaron Greiner, Eric Joffre, Sean Reisch, Christine Marchand
  • Publication number: 20210309899
    Abstract: A silicone pressure sensitive adhesive composition is curable to form a silicone pressure sensitive adhesive. The silicone pressure sensitive adhesive composition can be coated on a substrate and cured to form a protective film. The protective film can be adhered to an anti-fingerprint coating on display glass, such as cover glass for a smartphone.
    Type: Application
    Filed: January 15, 2020
    Publication date: October 7, 2021
    Applicants: Dow Silicones Corporation, Dow Silicones Corporation
    Inventors: Jingui Jiang, Zhihua Liu, Ruihua Lu, Qing Cao, Chengrong Zhu, Jiayin Zhu