Patents by Inventor Mason S. Wilt

Mason S. Wilt 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).

  • Continuous polymerization reactor
    Patent number: 4587314
    Abstract: In a reactor for continuous polymerization in which an olefinic monomer is polymerized by contacting the olefinic monomer under suitable reaction conditions with an initiator, the formation of residue in the reactor is reduced by introducing the olefinic monomer and initiator into opposite sides of a turbulent zone produced by an agitator in the reactor. This improves mixing of the olefinic monomer and the initiator and prevents the initiator from contacting high concentrations of the olefinic monomer which results in reduced residue formation in the reactor.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: May 6, 1986
    Assignee: Phillips Petroleum Company
    Inventor: Mason S. Wilt
  • Creation and maintenance of the bed of a particle form evaporator
    Patent number: 4532272
    Abstract: An additive comprising at least one parting agent is added to a particle form evaporator to reduce the buildup of polymer on the walls and rotor of the agitated bed of the particle form evaporator. In an alternate embodiment, the additive employed further comprises at least one filler.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: July 30, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Mason S. Wilt, Richard E. Dietz
  • Continuous polymerization reactor
    Patent number: 4438074
    Abstract: In a reactor for continuous polymerization in which an olefinic monomer is polymerized by contacting the olefinic monomer under suitable reaction conditions with an initiator, the formation of residue in the reactor is reduced by introducing the olefinic monomer and initiator into opposite sides of a turbulent zone produced by an agitator in the reactor. This improves mixing of the olefinic monomer and the initiator and prevents the initiator from contacting high concentrations of the olefinic monomer which results in reduced residue formation in the reactor.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: March 20, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Mason S. Wilt
  • High strength diene/monovinyl aromatic copolymer-based adhesives
    Patent number: 4370433
    Abstract: A highly branched copolymer particularly suitable for forming pressure sensitive adhesives prepared in the presence of specified amounts of tert-butylchloride. Conjugated diene monomers are copolymerized with monovinylaromatic monomers in the presence of an organolithium initiator and a suitable amount of tertiary butylchloride. The holding power of adhesives prepared thereby is greatly increased.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: January 25, 1983
    Assignee: Phillips Petroleum Company
    Inventors: George M. Allison, III, Mason S. Wilt
  • Anti-blocking treatment for tacky particle-form polymers using aqueous composition of polyhydrocarbylsiloxane and alkali metal salt of higher carboxylic acid
    Patent number: 4027067
    Abstract: Tacky particle-form polymers are treated with a silicone/water/alkali metal caboxylate emulsion.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: May 31, 1977
    Assignee: Phillips Petroleum Company
    Inventors: Paul H. Wagner, Mason S. Wilt