Patents by Inventor Yogesh Tiwary

Yogesh Tiwary has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250171592
    Abstract: A silicone modified organic polymer is shown and described herein. The silicone modified organic polymer is a reaction product of a composition comprising an organic polyol, a silicone resin, and a hydrophilic silane. The hydrophilic silicone modified resin is directly dispersible in water. An aqueous dispersion of the silicone modified organic polymer is suitable for use as an additive in a coating composition.
    Type: Application
    Filed: November 25, 2024
    Publication date: May 29, 2025
    Inventors: Vinu Krishnan Appukuttan, Debdeep Maity, Yogesh Tiwary
  • Publication number: 20240228829
    Abstract: A silicone resin emulsion composition, coating compositions comprising such emulsions, and methods of making such emulsions is shown and described herein. The composition comprises a silicone resin, a surfactant, and an emulsion promoting agent. The emulsion promoting agent comprises a hydrophobically modified polyether. The use of the hydrophobically modified polyether along with the surfactant provides a silicone emulsion that is stable.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 11, 2024
    Inventors: Bhanu Pratap, Vinu Krishnan Appukuttan, Yogesh Tiwary
  • Patent number: 10487240
    Abstract: A crosslinkable silicone based emulsion composition includes a hydroxylated polydiorganopolysiloxane grafted onto at least one colloidal silica dispersion, wherein the at least one hydroxylated polydiorganopolysiloxane grafted onto the least one colloidal silica dispersion contains residual silanol groups from the at least one hydroxylated polydiorganopolysiloxane. Further, a waterborne co-binder silicone-organic resin composition includes (A) the crosslinkable silicone emulsion and (B) an organic resin emulsion which provides improved cured properties including, but not limited to, improved hydrophobicity (water resistance), scratch resistance and gloss retention as well as process for making the emulsions and the compositions.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 26, 2019
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Ping Jiang, Louisa Maio, Vikram Kumar, Martin Wusik, Yogesh Tiwary, Michael Seeber
  • Patent number: 10040932
    Abstract: The present invention relates to a composition comprising a bimorphological aqueous dispersion of first and second polymer particles, wherein the first polymer particles comprise a shell and a phosphorus acid functionalized protuberating core, and the second polymer particles do not comprise a protuberating core. The composition is useful for pigmented coatings formulations.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 7, 2018
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Ericka Lynn Killian, Yogesh Tiwary
  • Publication number: 20180142093
    Abstract: The present invention relates to a composition comprising a bimorphological aqueous dispersion of first and second polymer particles, wherein the first polymer particles comprise a shell and a phosphorus acid functionalized protuberating core, and the second polymer particles do not comprise a protuberating core. The composition is useful for pigmented coatings formulations.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Ericka Lynn Killian, Yogesh Tiwary
  • Patent number: 9932431
    Abstract: The present invention is a composition comprising a stable aqueous dispersion of polymer particles having a core comprising structural units of: a) a phosphorus acid monomer, b) an acid monomer, c) a multiethylenically unsaturated monomer; and d) a polymerizable ethylenically unsaturated bulk monomer; and a shell comprising structural units of a1) a sulfur acid monomer, and b1) a polymerizable ethylenically unsaturated bulk monomer; wherein the core protuberates from the shell and the ratio of the structural units of the sulfur acid monomer to structural units of carboxylic acid monomer in shell is at least 0.2:1. Control of the proportion of sulfur acid monomer units to carboxylic acid monomer units results in an improvement in the viscosity stability of paint formulations containing latexes possessing acorn morphology without sacrificing hiding.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: April 3, 2018
    Assignee: Rohm and Haas Company
    Inventors: Arnold S. Brownell, Yogesh Tiwary
  • Patent number: 9920194
    Abstract: The present invention relates to a composition comprising a bimorphological aqueous dispersion of first and second polymer particles, wherein the first polymer particles comprise a shell and a phosphorus acid functionalized protuberating core, and the second polymer particles do not comprise a protuberating core. The composition is useful for pigmented coatings formulations.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 20, 2018
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Ericka Lynn Killian, Yogesh Tiwary
  • Patent number: 9856372
    Abstract: The present invention relates to an in situ method for preparing a bimorphological aqueous dispersion of first polymer particles with protuberating phosphorus acid cores and second polymer particles without protuberating cores. The method provides a more efficient way of making compositions for pigmented coating formulations.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 2, 2018
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Yogesh Tiwary
  • Patent number: 9828509
    Abstract: The present invention is a composition comprising a) an aqueous dispersion of TiO2 particles encapsulated with an encapsulating acrylic or styrene-acrylic polymer comprising from structural units of diacetone acrylamide; and b) adipic acid dihydrazide. The composition is useful in coatings applications and shows a surprising improvement in gloss over compositions that do not include diacetone acrylamide functionalized encapsulating polymer and adipic acid dihydrazide.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 28, 2017
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, David G. Kelly, Pu Luo, Yogesh Tiwary
  • Patent number: 9777183
    Abstract: The present invention relates to a process for preparing an aqueous dispersion of polymer encapsulated TiO2 particles, comprising a multistage polymerization steps that includes a relatively large amount of low Tg first monomers and a relatively small amount of high Tg second monomers that comprise a relatively high concentration of an acid monomer. The dispersion of encapsulated TiO2 particles shows significantly improved freeze-thaw stability as compared with prior art processes that do not include staging with the second monomers described herein.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: October 3, 2017
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, David G. Kelly, Pu Luo, Yogesh Tiwary
  • Publication number: 20170009099
    Abstract: A crosslinkable silicone based emulsion composition includes a hydroxylated polydiorganopolysiloxane grafted onto at least one colloidal silica dispersion, wherein the at least one hydroxylated polydiorganopolysiloxane grafted onto the least one colloidal silica dispersion contains residual silanol groups from the at least one hydroxylated polydiorganopolysiloxane. Further, a waterborne co-binder silicone-organic resin composition includes (A) the crosslinkable silicone emulsion and (B) an organic resin emulsion which provides improved cured properties including, but not limited to, improved hydrophobicity (water resistance), scratch resistance and gloss retention as well as process for making the emulsions and the compositions.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Inventors: Ping Jiang, Louisa Maio, Vikram Kumar, Martin Wusik, Yogesh Tiwary, Michael Seeber
  • Publication number: 20160340539
    Abstract: The present invention relates to a process for preparing an aqueous dispersion of polymer encapsulated TiO2 particles, comprising a multistage polymerization steps that includes a relatively large amount of low Tg first monomers and a relatively small amount of high Tg second monomers that comprise a relatively high concentration of an acid monomer. The dispersion of encapsulated TiO2 particles shows significantly improved freeze-thaw stability as compared with prior art processes that do not include staging with the second monomers described herein.
    Type: Application
    Filed: May 17, 2016
    Publication date: November 24, 2016
    Inventors: James C. Bohling, David G. Kelly, Pu Luo, Yogesh Tiwary
  • Patent number: 9499691
    Abstract: The present invention relates to a stable aqueous dispersion of polymer particles with structural units of a) a phosphorus acid monomer or a salt thereof; b) a carboxylic acid monomer or a sulfur acid monomer or a salt thereof or a combination thereof; c) a multiethylenically unsaturated monomer; and d) an acrylate monomer, wherein the polymer particles have a solids content in the range of 30 to 50 percent and a particle size of from 40 nm and 100 nm.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 22, 2016
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Arnold S. Brownell, Yogesh Tiwary
  • Patent number: 9475932
    Abstract: The present invention relates to a composition comprising stable aqueous dispersion of polymer particles with acorn morphology, a hydrophobically modified ethylene oxide urethane based rheology modifier (HEUR) and a substantial absence of pigment particles with a refractive index in the range of from 2.0 and 3.0. The composition imparts improved HEUR efficiency for coating compositions such as deep base coating compositions.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 25, 2016
    Assignee: Rohm and Haas Company
    Inventors: Arnold S. Brownell, Yogesh Tiwary
  • Patent number: 9469776
    Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and a polymeric binder, wherein from 35 to 90 weight percent of the polymeric binder is attached to the TiO2 particles, based on the weight of polymeric binder in the pre-paint composite. The pre-composite of the present invention is useful in paint compositions, particularly those that require freeze-thaw stability.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 18, 2016
    Assignee: Rohm and Haas Company
    Inventors: David G. Kelly, Pu Luo, Michael Rhodes, Yogesh Tiwary
  • Publication number: 20160280904
    Abstract: The present invention relates to a composition comprising a bimorphological aqueous dispersion of first and second polymer particles, wherein the first polymer particles comprise a shell and a phosphorus acid functionalized protuberating core, and the second polymer particles do not comprise a protuberating core. The composition is useful for pigmented coatings formulations.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Ericka Lynn Killian, Yogesh Tiwary
  • Publication number: 20160280903
    Abstract: The present invention relates to an in situ method for preparing a bimorphological aqueous dispersion of first polymer particles with protuberating phosphorus acid cores and second polymer particles without protuberating cores. The method provides a more efficient way of making compositions for pigmented coating formulations.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Inventors: James C. Bohling, Arnold S. Brownell, Wei Gao, Yogesh Tiwary
  • Publication number: 20160152817
    Abstract: The present invention relates to a stable aqueous dispersion of polymer particles with structural units of a) a phosphorus acid monomer or a salt thereof; b) a carboxylic acid monomer or a sulfur acid monomer or a salt thereof or a combination thereof; c) a multiethylenically unsaturated monomer; and d) an acrylate monomer, wherein the polymer particles have a solids content in the range of 30 to 50 percent and a particle size of from 40 nm and 100 nm.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 2, 2016
    Inventors: James C. Bohling, Arnold S. Brownell, Yogesh Tiwary
  • Publication number: 20160152852
    Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and a polymeric binder, wherein from 35 to 90 weight percent of the polymeric binder is attached to the TiO2 particles, based on the weight of polymeric binder in the pre-paint composite.
    Type: Application
    Filed: February 3, 2016
    Publication date: June 2, 2016
    Inventors: David G. Kelly, Pu Luo, Michael Rhodes, Yogesh Tiwary
  • Patent number: 9303161
    Abstract: The present invention relates to a process comprising contacting a stable aqueous dispersion of pre-formed polymer particles with a monomer emulsion under emulsion polymerization conditions to form a stable aqueous dispersion of pre-formed particles protuberating from polymer particles arising from the polymerization of the monomer emulsion; these multistage polymer particles show exceptional compatibility with pigment particles. In another aspect, the present invention is a composition relating to the pre-formed particles.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 5, 2016
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Arnold S. Brownell, Yogesh Tiwary