Patents by Inventor Frank H. Howard

Frank H. Howard 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).

  • Molding compositions of polyvinyl chloride and polymerizable plasticizers
    Patent number: 4496692
    Abstract: Improved molding composition comprising (1) polyvinyl chloride, which is blended with a dehydrochlorinating agent such as a stannous salt; (2) a free-radically polymerizable monomer and/or macromer, wherein the monomer contains at least one terminal CH.sub.2 .dbd.C< group per molecule and the macromer contains at least one double bond in the polymeric backbone; (3) an ionically polymerizable monomer and/or macromer containing the oxirane group ##STR1## with an optional curing agent; (4) a heterofunctional monomer containing at least one oxirane group and at least one CH.sub.2 .dbd.C< group per molecule; and (5) a free radical initiator results in an improvement in thermo-mechanical properties.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: January 29, 1985
    Assignee: The B. F. Goodrich Company
    Inventors: Changkiu K. Riew, Frank H. Howard
  • Polyester resins toughened with vinyl terminated liquid polymers
    Patent number: 4350789
    Abstract: Unsaturated polyester resins are rendered less brittle without deteriorating other properties thereof by mixing therewith 0.1 to 20 parts of a vinyl terminated reactive liquid polymer per 100 parts of the polyester resin.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: September 21, 1982
    Assignee: The B. F. Goodrich Company
    Inventors: Eugene H. Rowe, Frank H. Howard