Patents by Inventor Clifford W. Childers

Clifford W. Childers 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).

  • Encapsulated electronic components and encapsulation compositions
    Patent number: 4514588
    Abstract: Electronic components are encapsulated with a poly(arylene sulfide) composition containing hydrogenated conjugated diene/monovinyl-substituted aromatic copolymer. The invention also includes certain encapsulation compositions containing poly(arylene sulfide), hydrogenated conjugated diene/monovinyl-substituted aromatic copolymer, reinforcement and filler.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: April 30, 1985
    Assignee: Phillips Petroleum Company
    Inventors: William H. Beever, Robert S. Shue, Clifford W. Childers
  • Block copolymers of conjugated dienes and lactones as modifiers of unsaturated polyesters
    Patent number: 4287313
    Abstract: A thermosettable composition comprising (1) an unsaturated polyester, (2) a block copolymer of a lactone, a conjugated diene and, optionally, a monovinylarene, and (3) a vinyl monomer is provided which shows improved compatibility and stability over a composition in which the block copolymer does not contain a polylactone block.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: September 1, 1981
    Assignee: Phillips Petroleum Co.
    Inventors: Raymond F. Uber, Clifford W. Childers, Floyd E. Naylor
  • Polyphenylene ether blends
    Patent number: 4258144
    Abstract: Blends of polyphenylene oxide or styrene resin-modified polyphenylene oxide, lactone block copolymers and, optionally, polar resins exhibiting improved impact strength as compared with polyphenylene oxide resin with no additive.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: March 24, 1981
    Assignee: Phillips Petroleum Company
    Inventors: Clifford W. Childers, Raymond F. Uber
  • Recovery and recycle of latex produced in used aqueous suspension medium
    Patent number: 3935148
    Abstract: Unreacted monomer in the water phase resulting from a suspension polymerization is polymerized to form a latex, as by the addition of an initiator to the water phase, in continued presence of the organic phase, thus removing from the organic phase, and therefore from the product, unreacted monomer into the water phase and therein also polymerizing the so removed monomer. The latex so obtained is recycled to the system as at least a portion of the aqueous phase for an ensuing polymerizable formulation. The polymer in the recycled latex becomes incorporated in the polymer generated in said ensuing polymerization. The invention is especially suited to the suspension process for producing ABS type products, affording considerably improved and simplified separation of unreacted monomer from the polymer product and conversion of said unreacted monomer to additional polymer avoiding expensive monomer recovery systems.
    Type: Grant
    Filed: December 5, 1972
    Date of Patent: January 27, 1976
    Assignee: Phillips Petroleum Company
    Inventors: Clifford W. Childers, Earl Clark
  • Preparation of impact plastic compositions
    Patent number: 3935136
    Abstract: High impact plastic compositions are prepared by dissolving an unsaturated elastomer in a vinylidene group-containing monomer or monomers, polymerizing in a suspension polymerization system, and subsequently cross-linking the product in a hot-mixing step employing a peroxide.
    Type: Grant
    Filed: February 7, 1972
    Date of Patent: January 27, 1976
    Assignee: Phillips Petroleum Company
    Inventors: Clifford W. Childers, Earl Clark, Wallace D. Johnson