Patents Assigned to Polymer Solutions Group
  • Publication number: 20260184992
    Abstract: A waterborne external release agent for producing ligno-cellulose composites such as oriented strand board (OSB), particle board (PB) and medium density fiberboard (MDF), which employ isocyanate-based adhesives such as pMDI is provided. The release agent as a formulation includes effective amounts of at least one tertiary ethoxylated fatty amine, effective amounts at least one of an acidic alkyl phosphate ester and an acidic phosphate ester ethoxylate, or combinations thereof, with the balance water. The formulation can also include a defoamer and a nonionic surfactant.
    Type: Application
    Filed: December 30, 2024
    Publication date: July 2, 2026
    Applicant: POLYMER SOLUTIONS GROUP
    Inventors: Gary M. FREEMAN, Malcolm D. FERNANDO, Cody J. Wykle
  • Patent number: 11267985
    Abstract: The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation can be diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: March 8, 2022
    Assignee: Polymer Solutions Group
    Inventors: Gary M. Freeman, Quang T. Do, Joshua D. Sparks
  • Patent number: 11015081
    Abstract: An aqueous boric acid/urea dispersion includes insoluble boric acid particles having a median particle size range of less than 44 microns and having a % actives content of boric acid plus urea of 60 wt. % or greater. The boric acid/urea dispersion includes an effective amount of at least one viscosity reducing agent such that the boric acid/urea dispersion has an initial Brookfield 2 rpm viscosity of about 5,000 to about 25,000 centipoise and a three week aged Brookfield 2 rpm viscosity of less than 250,000 centipoise, an optional amount of an alkali metal base, the alkali metal base/boric acid mole ratio in the dispersion ranging up to about 0.01; and the balance water. The boric acid/urea dispersion can be used in the manufacture of engineered wood products like oriented strand board as well as be a part of a waterborne coating formulation to coat wood products to improve fire retardancy.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 25, 2021
    Assignee: Polymer Solutions Group
    Inventors: Gary M. Freeman, Quang T. Do, Joshua D. Sparks
  • Patent number: 10703009
    Abstract: An aqueous boric acid dispersion includes boric acid particles having a median particle size range of less than 44 microns and a solids content of boric acid particles of 50% or greater. The boric acid dispersion also includes an effective amount of at least one viscosity reducing agent such that the boric acid dispersion has an initial Brookfield 2 rpm static viscosity of about 5,000 to about 25,000 centipoise and a three week aged Brookfield 2 rpm static viscosity of less than 250,000 centipoise, an optional amount of an alkali metal base, wherein the alkali metal base/boric acid mole ratio in the boric acid dispersion ranges from zero to about 0.01; and the balance water. The boric acid dispersion can be used in the manufacture of wood products like oriented strand board, medium density fiberboard, and particle board as well as to coat wood products to improve their fire retardancy.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 7, 2020
    Assignee: Polymer Solutions Group
    Inventors: Gary M. Freeman, Quang T. Do, Joshua D. Sparks