Patents by Inventor Stanley Robert Sandler

Stanley Robert 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).

  • Polyoxyalkylene tetrahalophthalate ester as textile finishing agent
    Patent number: 4098704
    Abstract: A polyoxyalkylene tetrahalophthalate ester composition is provided and the use thereof as a polyester fabric finishing agent to give the fabric durable flame retardancy, and improved water wicking ability wth no added tendency to soil. SUBACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a polyoxyalkylene tetrahalophthalate ester composition and the method of applying this composition to fabrics, such as 100% polyester, to give the fabrics durable flame retardancy, with no added tendency to soil, and water wicking ability. It also pertains to the finished fabric product with the polyoxyalkylene tetrahalophthalate ester thereon.2. Description of the Prior ArtPolyoxyalkylene tetrahalophthalates are known in the prior art for flame proofing materials. U.S. Pat. No. 3,775,165 (A) teaches the use of a tetrabromophthalate diester to make polyester fabric flame retardant and to improve the fabric's dyeing properties.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: July 4, 1978
    Assignee: Pennwalt Corporation
    Inventor: Stanley Robert Sandler
  • Polyoxyalkylene fluoroalkyltrimellitates
    Patent number: 4065630
    Abstract: Novel polyoxyalkylene fluoroalkyltrimellitate compounds are disclosed that are useful for improving the soil release properties of textiles. These compounds may be conveniently prepared by reacting a fluorinated alkyl thiol or amine with trimellitic anhydride monoacid chloride to form a fluorinated trimellitic anhydride intermediate product which is then reacted with a polyoxyalkylene derivative.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: December 27, 1977
    Assignee: Pennwalt Corporation
    Inventor: Stanley Robert Sandler
  • Polyoxyalkylene fluoroalkyltrimellitates
    Patent number: 4063024
    Abstract: Novel polyoxyalkylene fluoroalkyltrimellitate compounds are disclosed that are useful for improving the soil release properties of textiles. These compounds may be conveniently prepared by reacting a fluorinated alkyl thiol or amine with trimellitic anhydride monoacid chloride to form a fluorinated trimellitic anhydride intermediate product which is then reacted with a polyoxyalkylene derivative.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: December 13, 1977
    Assignee: Pennwalt Corporation
    Inventor: Stanley Robert Sandler
  • Smoke retardants for polyvinyl halides and polystyrenes
    Patent number: 4011194
    Abstract: Metal-2-mercaptobenzothiazoles, metal-2-mercaptobenzoxazoles, and metal-2-mercaptobenzimidazoles are used as smoke retardants for polyvinyl halides and polystyrenes and have the general structure of ##STR1## WHERE R and R.sup.1 can be a hydrogen, alkyl, aryl, alkylaryl or halogen, X is either oxygen, sulfur or NR.sup.2, M is a metal, n is an integer equal to the valence of the metal and R.sup.2 can be a hydrogen, alkyl, aryl or alkylaryl group.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: March 8, 1977
    Assignee: Pennwalt Corporation
    Inventor: Stanley Robert Sandler
  • Polyoxyalkylene fluoroalkyltrimellitates
    Patent number: 3994951
    Abstract: Novel polyoxyalkylene fluoroalkyltrimellitate compounds are disclosed that are useful for improving the soil release properties of textiles. These compounds may be conveniently prepared by reacting a fluorinated alkyl thiol or amine with trimellitic anhydride monoacid chloride to form a fluorinated trimellitic anhydride intermediate product which is then reacted with a polyoxyalkylene derivative.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: November 30, 1976
    Assignee: Pennwalt Corporation
    Inventor: Stanley Robert Sandler