Patents by Inventor Keith William Pollak

Keith William Pollak 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: 20240043677
    Abstract: A composition, made from recycled solid surface material or articles, that is suitable for making solid surface materials or articles, and a solid surface material or article made therefrom, the composition comprising a matrix resin of unsaturated polyester resin, inorganic filler particles, ground solid surface primary particles, ground solid surface secondary particles, and, optionally, solid surface dust particles. The composition is especially useful in making three-dimensional, rigid-surface, polymeric solid surface material and articles that are free of objectionable surface voids and have a smooth and stable continuous surface.
    Type: Application
    Filed: July 12, 2023
    Publication date: February 8, 2024
    Applicant: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Thi Hoang Ha Nguyen, Keith William Pollak
  • Publication number: 20230225058
    Abstract: Electrical circuitry is produced on the surface of an organic polymer. The electrical circuitry is produced on a support, and a polymerizable composition is brought into contact with the support and the circuitry. The polymerizable composition is polymerized while in contact with support and the circuitry to produce a solid, organic polymer. The electrical circuitry becomes adhered to and partially embedded in a surface of the solid organic polymer. The support may be removed subsequent to the polymerization step to expose the circuitry at the surface of the solid organic polymer.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 13, 2023
    Inventors: Timothy Scott Wyant, Gregory Scott Blackman, James Daniel Tremel, Keith William Pollak, Fazel Zare Bidoky
  • Patent number: 10927238
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 52 volume fraction percent, and (ii) no greater than 48 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, and (c) the D90 of the filler particles is equal to or less than 10 microns.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 23, 2021
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T Pottiger, Timothy Scott Wyant
  • Patent number: 10570280
    Abstract: A solid surface comprises (i) from 45 to 80 volume fraction percent of polymethylmethacrylate or unsaturated polyester or a combination of both, (ii) from 25 to 55 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface, and (iii) from 0.75 to 8 volume fraction percent of a siloxane fluid, wherein, when the filler has a major dimension of from 30-50 micrometers, the siloxane has a molecular weight of from 40,000 to 150,000 or when the filler has a major dimension of from 10-15 micrometers, the siloxane has a molecular weight of from 25,000 to 100,000 or when or when the filler has a major dimension of from 1-10 micrometers, the siloxane has a molecular weight of from 5,000 to 100,000.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 25, 2020
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Keith William Pollak, Timothy Scott Wyant
  • Patent number: 10221302
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modified with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 5, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T Pottiger, Timothy Scott Wyant
  • Publication number: 20180319970
    Abstract: A solid surface comprises (i) from 45 to 80 volume fraction percent of polymethylmethacrylate or unsaturated polyester or a combination of both, (ii) from 25 to 55 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface, and (iii) from 0.75 to 8 volume fraction percent of a siloxane fluid, wherein, when the filler has a major dimension of from 30-50 micrometers, the siloxane has a molecular weight of from 40,000 to 150,000 or when the filler has a major dimension of from 10-15 micrometers, the siloxane has a molecular weight of from 25,000 to 100,000 or when or when the filler has a major dimension of from 1-10 micrometers, the siloxane has a molecular weight of from 5,000 to 100,000.
    Type: Application
    Filed: April 17, 2018
    Publication date: November 8, 2018
    Inventors: KEITH WILLIAM POLLAK, Timothy Scott Wyant
  • Publication number: 20180163025
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modified with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.
    Type: Application
    Filed: July 17, 2017
    Publication date: June 14, 2018
    Inventors: Gregory Scott BLACKMAN, Hee Hyun LEE, Keith William POLLAK, Michael T. POTTIGER, Timothy Scott WYANT
  • Publication number: 20180163026
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 52 volume fraction percent, and (ii) no greater than 48 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, and (c) the D90 of the filler particles is equal to or less than 10 microns.
    Type: Application
    Filed: July 17, 2017
    Publication date: June 14, 2018
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T. Pottiger, Timothy Scott Wyant
  • Publication number: 20160194530
    Abstract: A polymerizable adhesive composition that forms an interpenetrating network when the components are polymerized. A sirup is made with a styrenic prepolymer, (meth)acrylate monomer and multifunctional (meth)acrylate crosslinking agent. The adhesive composition afforded by this sirup is polymerized in place using a conventional free radical initiators and activators. The adhesive is found especially useful as a joint adhesive for solid surface materials.
    Type: Application
    Filed: August 11, 2014
    Publication date: July 7, 2016
    Inventors: David Gordon Halterman, Clyde Spencer Hutchins, Keith William Pollak
  • Publication number: 20090043031
    Abstract: A precursor composition to formation of a solid composite contains a glassy polymer, a step-growth polymer, a polymer or oligomer which is miscible with the glassy polymer and particulate filler.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Inventors: Keith William Pollak, Clyde Spencer Hutchins, Jennifer Leigh Thompson
  • Patent number: 6476111
    Abstract: A highly filled, extruded solid surface sheet composite which has improved heat resistance, solvent resistance, and mar resistance by combination of glassy polymer and semi-crystalline polymer.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: November 5, 2002
    Assignee: E. I du Pont de Nemours and Company
    Inventors: Paul Edward Beauchemin, Barry Jordan Heitner, Clyde Spencer Hutchins, Keith William Pollak, Jennifer Leigh Thompson