Patents Assigned to Richard J. Fricke
  • Polyurethane foam from cellulosic products
    Patent number: 4521544
    Abstract: A polyurethane foam can be made from waste cellulosic products such as papermill sludge, wood chips, wood particles, sawdust, waste paper or cardboard scraps. The polyurethane foam is made by reacting together a polyisocyanate, a catalyst, and a cellulosic material.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: June 4, 1985
    Assignees: Patrick J. Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy
  • Pectin and related carbohydrates for the preparation of polyurethane foams
    Patent number: 4520139
    Abstract: Gel forming polysaccharides such as pectin react with polyisocyanates to form useful polyurethane foams.
    Type: Grant
    Filed: July 26, 1984
    Date of Patent: May 28, 1985
    Assignees: Patrick James Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy
  • Stabilization of the B-side
    Patent number: 4515638
    Abstract: Polyurethane foams are produced utilizing separate mixtures, the first containing a polyisocyanate, a surfactant and optionally a flame retardant, the second containing a carbohydrate, water and a polyurethane producing amine catalyst, the pH of the second mixture being at least 9.
    Type: Grant
    Filed: July 26, 1984
    Date of Patent: May 7, 1985
    Assignees: Richard J. Fricke, Patrick J. Crehan
    Inventor: Richard B. Kennedy
  • Polyurethane foams and processes for preparation
    Patent number: 4417998
    Abstract: Polyurethane foams which may be rendered flame resistant by the addition of flame retardants are produced by reaction between a carbohydrate, a polyisocyanate and water in the presence of a suitable surfactant and polyurethane forming catalyst.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: November 29, 1983
    Assignees: Patrick James Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy
  • Polyurethane foams and processes for preparation
    Patent number: 4400475
    Abstract: Polyurethane foams which may be rendered flame resistant by the addition of flame retardants are produced by reaction between a carbohydrate, a polyisocyanate and water in the presence of a suitable surfactant and polyurethane forming catalyst.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: August 23, 1983
    Assignees: Patrick James Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy
  • Composition and a method for controlling reaction pressures during the foaming process resulting in an easily flame retarded foam-in place insulation
    Patent number: 4291129
    Abstract: A low reactive pressure flame-retardant polyurethane foam made by reacting together a polymeric isocyanate, a polyol, an aqueous solution of a carbohydrate, calcium acid phosphate, sodium aluminum sulfate, sodium bicarbonate, and a flame retardant. A blowing agent may be present.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: September 22, 1981
    Assignees: Patrick James. Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy
  • Composition and a method for controlling reaction pressures during the foaming process resulting in an easily flame retarded foam-in place insulation
    Patent number: RE31757
    Abstract: A low reactive pressure flame-retardant polyurethane foam made by reacting together a polymeric isocyanate, a polyol, an aqueous solution of a carbohydrate, calcium acid phosphate, sodium aluminum sulfate, sodium bicarbonate, and a flame retardant. A blowing agent may be present.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: December 4, 1984
    Assignees: Patrick J. Crehan, Richard J. Fricke
    Inventor: Richard B. Kennedy