Patents by Inventor Clifford J. Maxwell

Clifford J. Maxwell 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).

  • Reduction of scorching in polyurethane foam
    Patent number: 4135042
    Abstract: Use of phosphites as scorch inhibitors in polyurethane foams containing halogenated phosphate polyester additives.
    Type: Grant
    Filed: October 18, 1977
    Date of Patent: January 16, 1979
    Assignee: Olin Corporation
    Inventors: Donald L. Lickei, Clifford J. Maxwell
  • Use of hydroquinone in polyurethane foams containing halogenated phosphate polyester additives
    Patent number: 4045378
    Abstract: Use of hydroquinone as a scorch inhibitor in polyurethane foams containing halogenated phosphate polyester additives.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: August 30, 1977
    Assignee: Olin Corporation
    Inventor: Clifford J. Maxwell
  • Use of Schiff bases as cross-linking agents for high resilience polyurethane foam
    Patent number: 4016113
    Abstract: Selected Schiff bases of aromatic and alkylsubstituted aromatic ortho diamines are employed as cross-linking agents in the preparation of high resilience polyurethane foam.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: April 5, 1977
    Assignee: Olin Corporation
    Inventors: Frank J. Preston, John S. Babiec, Jr., Clifford J. Maxwell
  • Hydrophilic polyurethane foam
    Patent number: 4008189
    Abstract: An improvement is disclosed in the preparation of hydrophilic polyurethane foams. The improvement comprises employing, as the polyol reactant used in making the foam, a mixture of selected oxyalkylated polyhydric alcohols. The resulting foam has improved wet strength properties and is particularly useful in cleaning and similar applications.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: February 15, 1977
    Assignee: Olin Corporation
    Inventors: Bruce G. VAN Leuwen, Clifford J. Maxwell