Patents Assigned to Thermoset AG
  • Foaming apparatus
    Patent number: 4370117
    Abstract: A foaming apparatus for manufacturing insulation material includes a mixing chamber, a pump for withdrawing the composition from the mixing chamber and supplying it to the apex of a hollow conical expansion chamber where the apex is located vertically beneath the base of the cone, a cover for the base of the cone including an outlet in the form of a nozzle which imparts a desired shape to the foamed composition.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: January 25, 1983
    Assignee: Thermoset AG
    Inventor: Stuart B. Smith
  • Low-density, furfuryl benzylic phenolic thermosetting foam product and method of preparing same
    Patent number: 4353994
    Abstract: A low-density, low-friability, furfuryl-phenol thermosetting foam product is prepared by reacting, in the presence of a blowing agent and an acid catalyst, a furfuryl-alcohol monomer or polymer and a benzylic-ether phenol-formaldehyde resin, having a mole ratio of benzylic-ether phenol to formaldehyde of from about 1:3 to 1:11, which reaction provides a closed-cell, thermosetting foam product having a foam density of 0.5 pound per cubic foot or less.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: October 12, 1982
    Assignee: Thermoset AG
    Inventor: Stuart B. Smith
  • Method of making a low-friability, thermosetting foam
    Patent number: 4350776
    Abstract: A low-friability, flame-retardant, thermosetting foam product is prepared by reacting, in the presence of a blowing agent and a strong acid catalyst, a furfuryl-alcohol polymer and a phenol-formaldehyde resin, having a mole ratio of phenol to formaldehyde of from about 1:1.2 to 1:2.0, which reaction provides a low-friability, flame-retardant, thermosetting foam product.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: September 21, 1982
    Assignee: Thermoset AG
    Inventor: Stuart B. Smith