Patents by Inventor Keith B. Baucom

Keith B. Baucom 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).

  • Patent number: 5334788
    Abstract: Substrate compounds are reacted by passing them through an eductor with fluorine gas optionally in the presence of a liquid medium and preferably in a loop reactor with cooling means thereby providing rapid but controlled reaction suitable for industrial scale production. Vinylidene chloride, for example, smoothly produces dichlorodifluoroethane and dichlorotrifluoroethane in good yield.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: August 2, 1994
    Assignee: PCR Group, Inc.
    Inventors: Keith B. Baucom, Adam C. Alty, Earl J. Kimmel
  • Patent number: 5177275
    Abstract: Substrate compounds are reacted by passing them through an eductor with fluorine gas optionally in the presence of a liquid medium and preferably in a loop reactor with cooling means thereby providing rapid but controlled reaction suitable for industrial scale production. Vinylidene chloride, for example, smoothly produces dichlorodifluoroethane and dichlorotrifluoroethane in good yield.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: January 5, 1993
    Assignee: PCR Group, Inc.
    Inventors: Keith B. Baucom, Adam C. Alty, Earl J. Kimmel
  • Patent number: 4769495
    Abstract: The invention relates to a novel fluorinated pre-polymer and novel process steps in producing the same. The pre-polymers are quinoxaline materials derived by reaction of diketone linkage containing perfluoro-compounds with an aromatic diamine. The diketone is produced by a bis-ketone. The polychloroketone is produced by reacting a keto-ylid with a chlorinating agent, e.g., chlorine. The keto-ylid is produced by oxidatively dechlorinating a polychloroketone which may be a monoketone or reacting a phosphorane with an acid halide of a polyoxy-perfluoroalkylene oxide wherein the perfluoro-oxyalkylene group contains two or three carbon atoms, and there are present from two or twenty perfluoro-oxyalkylene units in the oligomer. The quinoxalines, the polychloroketones and the diketones hereof are novel products. Cross-linking may be effected with a free radical generator.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: September 6, 1988
    Assignee: PCR, Inc.
    Inventor: Keith B. Baucom
  • Patent number: 4633020
    Abstract: The invention relates to a novel fluorinated pre-polymer and novel process steps in producing the same. The pre-polymers are quinoxaline materials derived by reaction of diketone linkage containing perfluoro-compounds with an aromatic diamine. The diketone is produced by oxidatively dechlorinating a polychloroketone which may be a monoketone or a bis-ketone. The polychloroketone is produced by reacting a keto-ylid with a chlorinating agent, e.g., chlorine. The keto-ylid is produced by reacting a phosphorane with an acid halide of a polyoxy-perfluoroalkylene oxide wherein the perfluoro-oxyalkylene group contains two or three carbon atoms, and there are present from two to twenty perfluoro-oxyalkylene units in the oligomer. The quinoxalines, the polychloroketones and the diketones hereof are novel products. Cross-linking may be effected with a free radical generator.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: December 30, 1986
    Assignee: SCM Corporation
    Inventor: Keith B. Baucom
  • Patent number: 4546184
    Abstract: The invention relates to a novel fluorinated pre-polymer and novel process steps in producing the same. The pre-polymers are quinoxaline materials derived by reaction of diketone linkage containing perfluoro-compounds with an aromatic diamine. The diketone is produced by oxidatively dechlorinating a polychloroketone which may be a monoketone or a bis-ketone. The polychloroketone is produced by reacting a keto-ylid with a chlorinating agent, e.g., chlorine. The keto-ylid is produced by reacting a phosphorane with an acid halide of a polyoxy-perfluoroalkylene oxide wherein the perfluoro-oxyalkylene group contains two or three carbon atoms, and there are present from two to twenty perfluoro-oxyalkylene units in the oligomer. The quinoxalines, the polychloroketones and the diketones hereof are novel products. Cross-linking may be effected with a free radical generator.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: October 8, 1985
    Assignee: SCM Corporation
    Inventor: Keith B. Baucom
  • Patent number: 4460514
    Abstract: An improved method for synthesizing poly (carbonyl fluoride) oligomers by using bis(trifluoromethyl)trioxide as a reaction initiator in the photo-oxidation of F-3 methylbutene-1.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: July 17, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Keith B. Baucom, Burrell N. Hamon
  • Patent number: 4374715
    Abstract: An improved method for synthesizing poly (carbonyl fluoride) oligomers by using bis(trifluoromethyl)trioxide as a reaction initiator in the photo-oxidation of F-3 methylbutene-1.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: February 22, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Keith B. Baucom, Burrell N. Hamon
  • Patent number: 4356070
    Abstract: F-3-Methylbutene-1 has been oxidized using oxygen and ultraviolet radiation to form poly(carbonyl fluoride) oligomers. The formation of fluoroformate terminated material is insignificant. This is in sharp contrast to the products derived from the prior art oxidation of F-propene (HFP) in which up to 60% fluoroformate terminated material was produced. F-Ethylene (TFE) can be added to the F-3-methylbutene-1 reaction gas stream without adversely affecting the product composition. The fluoride oligomers, after addition of one unit of hexafluoropropylene oxide, can be converted to s-triazines which have excellent properties as hydrualic fluids.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: October 26, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Keith B. Baucom
  • Patent number: 4241223
    Abstract: F-phenylalkylene oxide acetylenes having the formula C.sub.6 F.sub.5 C.tbd.C(CF.sub.2 OCF.sub.2).sub.n C.tbd.CC.sub.6 F.sub.5, where n ranges from 3 to 8, inclusive. The diacetylenes are useful as monomers for preparing fluorinated polyether elastomers.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: December 23, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Keith B. Baucom
  • Patent number: 3933831
    Abstract: Thermally and oxidatively stable perfluorinated tertiary amines of the formula: ##EQU1## ARE DISCLOSED, AS WELL AS THE PROCESS FOR MAKING THESE AND OTHER COMPOUNDS. The carbonyl group of imides or amides is reduced with SF.sub.4 using HF as the reaction solvent at a reaction temperature of 25.degree.-300.degree.C. Cyclic imides can be used as starting compounds, and tertiary amines containing unsaturated moieties can be produced.The perfluorinated tertiary amines have various uses in view of their high degree of thermal and oxidative stability, including uses as hydraulic fluids or transformer dielectric fluids.
    Type: Grant
    Filed: November 7, 1973
    Date of Patent: January 20, 1976
    Assignee: PCR, Inc.
    Inventors: Ralph J. De Pasquale, Keith B. Baucom