Patents by Inventor Stanley R. Sandler

Stanley R. Sandler 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).

  • Melamine derivatives as flame retardants for polyurethanes
    Patent number: 4197373
    Abstract: Flame retarded polyurethane foams are prepared from a reaction mixture comprising as the flame retardant additive the compound N,N'-bis(1-hydroxy-2,2,2-trichloroethyl)melamine or its derivatives.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: April 8, 1980
    Assignee: Pennwalt Corporation
    Inventors: Jeffrey D. Miano, Stanley R. Sandler
  • Polyester resins flame retarded by poly(metal phosphinate)s
    Patent number: 4180495
    Abstract: Polyesters, polyamides and polyester-polyamides are flame retarded by incorporating a flame retardant amount of selected poly(metal phosphinate)s with the resins. The poly(metal phosphinate)s can be incorporated with the resins either by admixture of the poly(metal phosphinate)s with the polyester or polyamide or by adding the poly(metal phosphinate)s to the polyester or polyamide polymerization reaction whereby the poly(metal phosphinate)s become a part of the polymer structure.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: December 25, 1979
    Assignee: Pennwalt Corporation
    Inventor: Stanley R. Sandler
  • Copper and cobalt carbonates as smoke suppressants for poly(vinyl halides)
    Patent number: 4157329
    Abstract: A composition comprising a poly(vinyl halide) resin and a member selected from copper carbonate, cobalt carbonate or mixtures thereof is provided that gives off only a small amount of smoke during combustion.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: June 5, 1979
    Assignee: Pennwalt Corporation
    Inventors: Stanley R. Sandler, Donald A. Sheldon
  • Compounds containing the 2,2,2-trichloroethyl group as flame retardants for polyurethanes
    Patent number: 4152497
    Abstract: Flame retarded polyurethane foams are prepared from a reaction mixture comprising as the flame retardant additive a compound containing 2,2,2-trichloroethyl group.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: May 1, 1979
    Assignee: Pennwalt Corporation
    Inventors: Jeffrey D. Miano, Stanley R. Sandler
  • 2,3-Dibromopropyl polyoxyethylene trimellitate
    Patent number: 4125733
    Abstract: A compound of the formula ##STR1## is provided that is useful for imparting soil release properties and durable flame retardancy to textiles such as all-polyester fabric either alone or in combination with other textile chemicals.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: November 14, 1978
    Assignee: Pennwalt Corporation
    Inventor: Stanley R. Sandler
  • Metal phosphinates as smoke retardants for polyvinyl halides
    Patent number: 4049612
    Abstract: A smoke-retardant polymer composition composed of an admixture of a polyvinyl halide resin and a metal phosphinate having one, two, three or four phosphinate groups per coordination center.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: September 20, 1977
    Assignee: Pennwalt Corporation
    Inventor: Stanley R. Sandler