Patents Assigned to Fluorochem, Inc.
  • Patent number: 8030440
    Abstract: 3-nitratooxetane. Poly-(3-nitratooxetane). The method of synthesizing 3-nitratooxetane comprising reacting 3-hydroxyoxetane with a nitration agent. The method of synthesizing poly-(3-nitratooxetane) by polymerizing 3-nitratooxetane using a polyol initiator.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 4, 2011
    Assignee: Fluorochem, Inc.
    Inventors: Rodney L. Willer, Kurt Baum, Wen-Huey Lin
  • Patent number: 6482891
    Abstract: A novel moisture curable polymer combination comprising, a member selected from the group consisting of a polydiolefin polymer containing olefinic unsaturation in either the main polymer backbone or in pendent side chains; and a loop polymer having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone; and a silicon cross-linking compound containing at least one easily hydrolyzed substituent.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: November 19, 2002
    Assignee: Fluorochem, Inc.
    Inventors: Kurt Baum, Wen-Huey Lin
  • Patent number: 6388087
    Abstract: The novel compound 3,3-Dinitro-4,4′-hydrozofurazan and the methods of preparation. The method of preparation 3,3-Dinitro-4,4′-hydrazofurazan which comprises partially reducing 3,3′-Dinitro-4,4′-azoxyfurazan. The method of preparing 3,3′-Dinitro-4,4′-hydrazofurazan by the partial reduction of 3,3′-Dinitro-4,4′-azofurazan.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 14, 2002
    Assignee: Fluorochem Inc.
    Inventors: Abdollah Bashir-Hashemi, Kurt Baum
  • Patent number: 6251993
    Abstract: A novel moisture curable polymer combination comprising, a member selected from the group consisting of a polydiolefin polymer containing olefinic unsaturation in either the main polymer backbone or in pendent side chains; and a loop polymer having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone; and a silicon cross-linking compound containing at least one easily hydrolyzed substituent.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Fluorochem, Inc.
    Inventors: Kurt Baum, Wen-Huey Lin
  • Patent number: 5811193
    Abstract: Novel loop polymers having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone. The loop polymers may also have hydroxy or carboxy groups which can be capped with diisocyanates or epoxies, respectively.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: September 22, 1998
    Assignee: Fluorochem, Inc.
    Inventor: Kurt Baum
  • Patent number: 5703163
    Abstract: Novel loop polymers having a polymeric backbone and a plurality of olefinic groups which have been converted to closed loops by reaction with difunctional organic compounds reactive with said olefinic groups, said olefinic groups from which the loops are formed may either be present within the backbone and/or pendent from the polymeric backbone. The loop polymers may also have hydroxy or carboxy groups which can be capped with diisocyanates or epoxies, respectively.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 30, 1997
    Assignee: Fluorochem, Inc.
    Inventor: Kurt Baum
  • Patent number: 5204441
    Abstract: Branched-chain diols and a method of forming them by reacting 1,4-diiodoperfluorobutane and perfluoropropylene to obtain branched-chain diiodide adducts thereof, reacting the diiodide adducts with ethylene to obtain I--CH.sub.2 CH.sub.2 --R--CH.sub.2 CH.sub.2 --I, wherein R is a branched-chain perfluoroalkyl radical, and hydrolysing the iodo groups to alcohols to obtain HO--CH.sub.2 CH.sub.2 --R--CH.sub.2 CH.sub.2 --OH. These diols can be reacted with branched-chain diisocyanates to form polyurethanes of better processability and lower glass transition temperatures than polyurethanes prepared from linear fluorinated monomers.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: April 20, 1993
    Assignee: Fluorochem Inc.
    Inventors: Kurt Baum, Thomas G. Archibald, Aslam A. Malik
  • Patent number: 5166313
    Abstract: The present invention comprises diamantane groups interspersed among benzothiazole groups, benzoxazole groups or benzimidazole groups. This constitutes a rigid-rod polymer with stable cycloaliphatic groups interspersed into the aromatic-heteroaromatic backbone of the rods. The presence of the aliphatic groups decreases crystallinity by adding disorder to the rods thus minimizing interactions between the heteroaromatic groups. The interspersed aliphatic groups act as insulators and thus permit greater relative protonation. Also, the reduced conjugation of the aromatic-heteroaromatic rings reduces the color of the polymers. The preferred method of manufacturing this improved rigid-rod polymer is by condensation of dimethyl diamantanecarboxylate with 2,5-diamino-1,4-benzenedithiol, 1,2,4,5-tetraaminobenzene, or 4,6-diamino-1,3-benzenediol.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: November 24, 1992
    Assignee: Fluorochem, Inc.
    Inventors: Thomas G. Archibald, Aslam A. Malik, Kurt Baum
  • Patent number: 4942164
    Abstract: Polyfluorinated diisocyanates having the formula OCN--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, in which n is a whole number from 2 to 16, inclusive, and their analogous monofunctional isocyanates having the formula F(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, wherein n is a whole number from 1 to 20, inclusive. The polyfluorinated diisocyanates react with polyfluorinated diols having the formula HO--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --OH, wherein n is a whole number of from 1 to 20, inclusive, to form useful fluorinated polyurethanes.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: July 17, 1990
    Assignee: Fluorochem Inc.
    Inventors: Kurt Baum, Aslam A. Malik, Donald D. Tzeng
  • Patent number: 4918158
    Abstract: 1,3-Diethynyladamantane and a method of forming same by brominating adamantane to yield 1,3-dibromoadamantane, subjecting vinyl bromide to Friedel-Crafts alkylation with the 1,3-dibromoadamantane to form 1,3-bis(2,2-dibromoethyl)adamantane and subjecting the 1,3-bis(2,2-dibromoethyl)adamantane to dehydrohalogenation to yield the 1,3-diethynyladamantane. 1,3-Diethynyladamantane can be polymerized to produce strong, thermally stable resins suitable for advanced aerospace structural applications, as matrices for carbon-carbon systems and as electrical insulators. It can also be copolymerized with 1-ethynyladamantane to yield similarly useful resins.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: April 17, 1990
    Assignee: Fluorochem Inc.
    Inventors: Kurt Baum, Thomas G. Archibald
  • Patent number: 4618734
    Abstract: A perfluoroalkylene .alpha.,.omega.-diacetylene compound having a fluorocarbon chain of from 5 to about 20 carbon atoms between two acetylene end groups, and a method of forming same by first reacting perfluoroalkylene diiodide having the formula I(CF.sub.2).sub.n I, wherein n is a whole number from 5 to about 20, inclusive with bis(trimethylsilyl)acetylene, and converting the reaction product to the diacetylene with KF. The diacetylene has the general formula HC.tbd.C(CF.sub.2).sub.n C.tbd.CH, wherein n is as set forth above, and it can be polymerized to produce a clear, hard, cross-linked resin suitable for use as a coating on bearings and in the manufacture of aircraft windshields. Monofunctional counterparts of the HC.tbd.C(CF.sub.2).sub.n C.tbd.CH compounds can be formed by substituting perfluoroalkyl primary iodides for the diiodides in the above-described reaction.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: October 21, 1986
    Assignee: Fluorochem Inc.
    Inventors: Kurt Baum, Ronald O. Hunadi, Clifford D. Bedford