Patents Assigned to Dow Silicones Corporation
  • Patent number: 12269833
    Abstract: A branched organosilicon compound is provided which has the general formula (R1)3Si—X—NR2—X1—NR22- In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R1 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R1 and R6 is —[OSiR2]mOSiR3; 0<m?100. Each R is independently a substituted or unsubstituted hydrocarbyl group, e.g. a methyl group. Each of X and X1 is an independently selected divalent linking group, e.g. a divalent hydrocarbon linking group. Each R2 independently comprises a substituted or unsubstituted hydrocarbyl group, a polyether group, or H. At least one R2 comprises a polyether group. A method of preparing the branched organosilicon compound and a composition comprising the branched organosilicon compound are also provided.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 8, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Nanguo Liu, Zachary Wenzlick
  • Patent number: 12269950
    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) arc based on the total weight of components (A), (B) and (C) in the composition.
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: April 8, 2025
    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
  • Patent number: 12269834
    Abstract: A method of preparing an organosilicon compound via selective silylation of ethylene is disclosed. The method comrises prises reacting via silylation (A) a hydridochlorosilane compound and (B) ethylene in the presence of (C) a catalyst, thereby preparing the organosilicon compound. The silylation may be selectively conducted as a dehydrogenative coupling to prepare the organosilicon ompound as a vinylchlorosilane compound, or as a hydrosilylation to prepare the organosilicon compound as an ethylchlorosilane compound. The catalyst (C) comprises a Ru(0) complex, and may be recycled for use in subsequent silylation reactions without purification. The organosilicon compound prepared according to the method is also disclosed.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 8, 2025
    Assignee: DOW SILICONES CORPORATION
    Inventors: David Lawrence Witker, Juan Mauricio Venegas, Ronen Weingarten, Dimitris E. Katsoulis
  • Patent number: 12264213
    Abstract: The present invention relates to a method for preparing an aqueous dispersion of acrylate-siloxane copolymer particles as described herein. The polymer particles comprise structural units of an acrylate monomer; an acid monomer; and a siloxane acrylate monomer of formula I: where R, R1, R2, Y and x are as defined herein. The method provides an efficient way to prepare a high solids content aqueous dispersion of siloxane-acrylate hybrid copolymers with efficient incorporation of siloxane acrylate monomers, low residual monomer, and low generation of unwanted coagulum. The dispersion is useful for forming coatings with improved hydrophobicity, stain resistance, and aesthetic/haptic properties compared with conventional all-acrylic compositions.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: April 1, 2025
    Assignees: Rohm and Haas Company, Dow Silicones Corporation
    Inventors: Hilda G. Buss, Matthew Carter, Ralph C. Even, Bryan L. McCulloch, Jodi Mecca, Richard P. Woodworth, Fanwen Zeng
  • Patent number: 12258487
    Abstract: A composition containing: (a) a polysiloxane resin, wherein the polysiloxane resin contains the following siloxane units: [R3SiO1/2], [(OZ)qSiO(4-q)/2] and at least one of [(OZ)tREPSiO(3-t)/2] and [(OZ)dRREPSiO(2-d)/2]; where: each R is independently in each occurrence selected from hydrocarbyls, REP is an epoxy functional hydrocarbyl group, subscript q is in each occurrence a number selected from a range of 0-3, subscript t is in each occurrence a number selected from a range of 0-2, and subscript d is in each occurrence a number selected from a range of 0-1 provided that the average concentration of OZ groups is at least 15 mole-percent relative to moles of silicon atoms in the polysiloxane resin; (b) a photo acid generator; (c) a moisture cure catalyst; and (d) optionally, an epoxy functional diluent.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: March 25, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Peng-Fei Fu, Yanhu Wei
  • Patent number: 12258503
    Abstract: A curable silicone-(meth)acrylate pressure sensitive composition is curable via hydrosilylation reaction to form a silicone-(meth)acrylate pressure sensitive adhesive with an initial adhesion. When the silicone-(meth)acrylate pressure sensitive adhesive is exposed to actinic radiation, the resulting silicone-(meth)acrylate adhesive has a subsequent adhesion, which is higher than the initial adhesion.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: March 25, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Juyoung Yook, Yoonyoung Kim
  • Patent number: 12252665
    Abstract: Aqueous liquid hand dishwashing detergent formulation, is provided including water; an anionic surfactant; and a suds enhancing additive, wherein the suds enhancing additive is a polyacrylic acid homopolymer having a molecular weight of 1,000 to 7,500 Daltons.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: March 18, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Saugata Nad, Serge Creutz, Christel Simon
  • Patent number: 12247105
    Abstract: A composition contains a mixture of silyl hydride, an alpha-beta unsaturated ester, a Lewis acid catalyst and an amine having the following formula: R1R2R3N; where the nitrogen is not a member of an N?C—N linkage and where each of R1, R2, and R3 is independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R1, R2 and R3 is a conjugated moiety connected to the nitrogen by a conjugated carbon.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: March 11, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Yanhu Wei, Steven Swier, Zhenbin Niu, Nanguo Liu
  • Patent number: 12234201
    Abstract: Provided is a method of making ethylenediaminetetraacetic acid (EDTA) comprising the steps: (a) providing a reaction mixture (a) comprising ethylenediamine (EDA) and glycolonitrile (GN), wherein reaction mixture (a) comprises 0% to 0.1% by weight, based on the weight of reaction mixture (a), of any base having pKa of the conjugate acid (PKaH) of 13 or higher; (b) causing or allowing reaction mixture (a) to react to form a dinitrile (DN) compound; (c) bringing the DN into contact with aqueous solution of a base having pKaH of 11 or higher, and causing or allowing the resulting mixture to react to form a diacid compound (DA); (d) causing or allowing the DA to react, either sequentially or simultaneously, with additional GN to form products (Pd); (e) causing or allowing products (Pd) to react with a base having pKaH of 11 or higher, to form EDTA.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: February 25, 2025
    Assignees: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Deboleena Chakraborty, Edward D. Daugs, Kenneth E. Stockman, Ronald Peterson
  • Patent number: 12227650
    Abstract: A method of preparing a silicone-acrylate hybrid composition is provided. The method comprises irradiating an acrylate composition in the presence of: (i) a silicone article, and/or (ii) a silicone composition; to polymerize the acrylate composition and give the silicone-acrylate hybrid composition. The acrylate composition comprises an acrylate compound and an initiator.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 18, 2025
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, DOW SILICONES CORPORATION, NORTHWESTERN UNIVERSITY
    Inventors: Dongchan Ahn, Jeremy Beebe, Shane Mangold, Ken Shull, Muzhou Wang, Anthony Silvaroli, Tyler Heyl
  • Patent number: 12227141
    Abstract: A coating composition which comprises a first polymeric component which comprises a first polymeric dispersion, wherein polymers contained in the first polymeric dispersion have a surface free energy of equal to or greater than 28 mJ/m2 and a volume average particle size diameter of from 0.1 to 10 microns; a second polymeric component which comprises one or more second polymeric emulsions wherein polymers contained in the second polymeric emulsions have a surface free energy equal to or less than 26 mJ/m2 and a volume average particle size diameter from 0.005 to 1,000 microns; one or more rheology modifiers is provided. An article coated with the coating composition and a method of making the coated article are also provided.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: February 18, 2025
    Assignees: Dow Global Technologies LLC, Dow Silicone Corporation
    Inventors: Craig Gorin, Manesh Sekharan, David Yancey, David Bank, Jacob Milne, Mark Fisher, Rebecca Beeson
  • Patent number: 12227530
    Abstract: A method of preparing an organosilanol compound is disclosed. The method comprises reacting (A) an initial organosilicon compound and (B) water in the presence of (C) a catalyst. The catalyst (C) is selected from: (C1) [(C8H12irCl]2[(p-cymene)RuCl2]2; and (C3) Pd/C. The initial organosilicon compound (A) has the general formula HO—Si(R)2—[Si(R)2O]a—OSi(R)2—Y and the organosilanol compound has the general formula HO—Si(R)2-[Si(R)2O]a—OSi(R)2—Y, where each R is an independently selected hydrocarbyl group; Y comprises a functional moiety selected from alkoxysilyl moieties, epoxide moieties, and acryloxy moieties, with the proviso that Y is other than the acryloxy moieties when the catalyst (C) is (C3) Pd/C; and subscript a is 0 or 1. The organosilanol compound prepared by the method is also provided.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 18, 2025
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Donald V. Eldred, Matthew Jeletic, John Roberts, Andre Yvon-Bessette
  • Patent number: 12227529
    Abstract: This disclosure provides a method of preparing a silanol-functional organosilicon compound with a cytochrome P450 variant that facilitates the oxidization of a silyl hydride group to a silanol group in the presence of oxygen. The method includes combining the cytochrome P450 variant and an organosilicon compound having at least one silicon-bonded hydrogen atom to give a reaction mixture and exposing the reaction mixture to oxygen to oxidize the organosilicon compound, thereby preparing the silanol-functional organosilicon compound. Cytochrome P450 variants suitable for use in the method are also disclosed, along with methods for engineering and optimizing the same. Nucleic acids encoding the cytochrome P450 variants and compositions, expression vectors, and host cells including the same are also disclosed.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: February 18, 2025
    Assignees: DOW SILICONES CORPORATION, CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: John Roberts, Dimitris Elias Katsoulis, Susanne Baehr, Sabine Brinkmann-Chen, S. B. Jennifer Kan, Frances H. Arnold
  • Patent number: 12220479
    Abstract: A polymer blend is provided comprising: a single stage polymer and a silicone-grafted vinyl copolymer; wherein the single stage polymer comprises: structural units of a monoethylenically unsaturated non-ionic monomer; structural units of a monoethylenically unsaturated carboxylic acid monomer; and structural units of a multiethylenically unsaturated monomer having at least two ethylenically unsaturated groups per molecule; and wherein the silicone-grafted vinyl copolymer, comprises: structural units of a vinyl monomer; and structural units of a carbosiloxane dendrimer of formula (I). Also provided is a suncare formulation comprising the polymer blend in a dermatologically acceptable carrier with a suncare active.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 11, 2025
    Assignees: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC, DOW SILICONES CORPORATION
    Inventors: Fanwen Zeng, Xiaodong Lu, Tian Lan, Isabelle Van Reeth, Helene Dihang, Marc Eeman, Inna Shulman
  • Patent number: 12215117
    Abstract: A method of preparing an acryloxy-functional organosilicon compound is provided. The method comprises reacting (A) an initial organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst. The initial organosilicon compound (A) has one alcohol functional group (i.e., is monohydroxyl functional). The catalyst (C) has the formula M[RC(O)CHC(O)R]4, where M is a group IV transition metal and each R is an independently selected substituted or unsubstituted hydrocarbyl group. An acryloxy-functional organosilicon compound prepared by the method is also provided. The acryloxy-functional organosilicon compound is prepared in increased purity, without relying on toxic catalysts.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 4, 2025
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Jason Fisk, Nanguo Liu, Muhunthan Sathiosatham, Michael Telgenhoff, Thu Vi
  • Patent number: 12215198
    Abstract: A branched organosilicon compound is provided having the general formula: (R1)3—X—[SiR20]n—SiR2R3. In the formula: each R is independently a substituted or unsubstituted hydrocarbyl group; each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0?m?100; X is a divalent linking group; 1?n?10; and R3 has the general -D-Op—(CqH2qO)r—R8. In R3, D is a divalent hydrocarbon linking group, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and R8 is selected from substituted or unsubstituted hydrocarbyl groups and H.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: February 4, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Nanguo Liu, Zachary Wenzlick
  • Patent number: 12215233
    Abstract: A polydiorganosiloxane is useful in a composition and a method for preparing a wood plastic composite article. The wood plastic composite article is useful as a building material. The polydiorganosiloxane may be added to the composition in liquid form or may form part of a solid carrier component used to make the wood plastic composite article.
    Type: Grant
    Filed: October 6, 2023
    Date of Patent: February 4, 2025
    Assignee: Dow Silicones Corporation
    Inventors: Jodi Mecca, James Keenihan, Marc-Andre Courtemanche, Keith Bruce, Igor Chorvath, Sean Gaal
  • Patent number: 12209201
    Abstract: A liquid applied, silicone-based air and water barrier coating composition and its use as a silicone-based air and water barrier is provided. The barrier is generally vapour permeable and suitable for the construction industry. The liquid coating composition generally has a shelf-life of at least 15 months. The liquid coating composition comprises: (i) a crosslinked polysiloxane dispersion comprising (c) a surfactant and (d) water; (ii) one or more rheology modifiers in an amount of from 0.25 to 5 wt. % of the composition; and (iii) an acidic pH stable colloidal silica in an amount of from 15 to 30 wt. % of the composition; and optionally (iv) one or more stabilizers.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: January 28, 2025
    Assignees: ROHM AND HAAS COMPANY, DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Tirtha Chatterjee, Milton H. Repollet-Pedrosa, Michael P. Tate, Yiyong He, Andrea Watts
  • Patent number: 12195593
    Abstract: A method for making a solventless polyorganosiloxane pellet is disclosed. The pellet is comprised of a polyorganosilicate resin and a polyorganosiloxane gum. The pellet is useful for making silicone pressure sensitive adhesive compositions.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: January 14, 2025
    Assignees: Dow Silicones Corporation, Dow Global Technologies LLC
    Inventors: Yunlong Guo, Rongrong Fan, Ruihua Lu, Wenfei Li, Zhihua Liu, Wenjie Chen, Yan Zhou, Jiayin Zhu
  • Patent number: 12187924
    Abstract: A polydiorganosiloxane having both a silicon bonded aliphatically unsaturated group and a silicon bonded poly(meth)acrylate polymer or copolymer, and method for preparation of this polydiorganosiloxane are disclosed. The method preserves the aliphatically unsaturated groups when grafting the poly(meth)acrylate to the polydiorganosiloxane. This polydiorganosiloxane is useful in hydrosilylation reaction curable compositions, such as pressure sensitive adhesive compositions.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: January 7, 2025
    Assignees: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Jodi Mecca, Nanguo Liu, Eric Joffre, Randy Schmidt, Beth Kelley, Tim Mitchell, James Walker, Wesley Sattler, Bryan McCulloch, Tzu-Chi Kuo