Patents Assigned to Fluorochem, Inc.
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Patent number: 8030440Abstract: 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: GrantFiled: June 7, 2010Date of Patent: October 4, 2011Assignee: Fluorochem, Inc.Inventors: Rodney L. Willer, Kurt Baum, Wen-Huey Lin
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Patent number: 6482891Abstract: 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: GrantFiled: March 26, 2001Date of Patent: November 19, 2002Assignee: Fluorochem, Inc.Inventors: Kurt Baum, Wen-Huey Lin
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Patent number: 6388087Abstract: 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: GrantFiled: November 21, 2000Date of Patent: May 14, 2002Assignee: Fluorochem Inc.Inventors: Abdollah Bashir-Hashemi, Kurt Baum
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Patent number: 6251993Abstract: 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: GrantFiled: July 28, 1999Date of Patent: June 26, 2001Assignee: Fluorochem, Inc.Inventors: Kurt Baum, Wen-Huey Lin
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Patent number: 5811193Abstract: 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: GrantFiled: May 27, 1997Date of Patent: September 22, 1998Assignee: Fluorochem, Inc.Inventor: Kurt Baum
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Patent number: 5703163Abstract: 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: GrantFiled: May 31, 1995Date of Patent: December 30, 1997Assignee: Fluorochem, Inc.Inventor: Kurt Baum
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Patent number: 5204441Abstract: 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: GrantFiled: March 12, 1990Date of Patent: April 20, 1993Assignee: Fluorochem Inc.Inventors: Kurt Baum, Thomas G. Archibald, Aslam A. Malik
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Patent number: 5166313Abstract: 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: GrantFiled: April 29, 1991Date of Patent: November 24, 1992Assignee: Fluorochem, Inc.Inventors: Thomas G. Archibald, Aslam A. Malik, Kurt Baum
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Patent number: 4942164Abstract: 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: GrantFiled: May 8, 1989Date of Patent: July 17, 1990Assignee: Fluorochem Inc.Inventors: Kurt Baum, Aslam A. Malik, Donald D. Tzeng
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Patent number: 4918158Abstract: 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: GrantFiled: July 21, 1986Date of Patent: April 17, 1990Assignee: Fluorochem Inc.Inventors: Kurt Baum, Thomas G. Archibald
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Patent number: 4618734Abstract: 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: GrantFiled: August 12, 1983Date of Patent: October 21, 1986Assignee: Fluorochem Inc.Inventors: Kurt Baum, Ronald O. Hunadi, Clifford D. Bedford