Abstract: Provided are new functionalized surfactants and methods of their preparation and use. The surfactants are compounds of formula I: wherein R1, R2, and R3 are as defined herein.
Type:
Grant
Filed:
October 21, 2010
Date of Patent:
February 4, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Matthias S. Ober, Edward D. Daugs, Wanglin Yu, Cynthia L. Rand
Abstract: Provided are new functionalized surfactants and methods of their preparation and use. The surfactants are compounds of formula I: wherein R1, R2, and R3 are as defined herein.
Type:
Application
Filed:
October 21, 2010
Publication date:
May 5, 2011
Inventors:
Matthias S. Ober, Edward D. Daugs, Wanglin Yu, Cynthia L. Rand
Abstract: A process for preparing perfluorovinylethers having general formula: RfO—CF?CF2??(IA) where Rf is a C1-C3 alkyl perfluorinated substituent, comprises the steps of: 1a) fluorinating olefins of formula: CY?Y?CY?Cl??(II) where Y, Y? and Y?, equal to or different from each other, are H, Cl, Br, and are not contemporaneously hydrogen; and obtaining fluorohalogencarbons of formula: FCY?Y—CY?ClF??(III) where Y, Y? and Y? are as above; 2a) dehalogenating or dehydrohalogenating fluorohalogencarbons (III) and obtaining fluorohalogenolefins of formula: FCYI?CYIIF??(IV) where YI and YII, equal to or different from each other, are H, Cl, Br and are not contemporaneously H; 3a) reacting a hypofluorite of formula RfOF and a fluorohalogenolefin (IV), and obtaining the fluorohalogenethers of formula: RfO—CFYI—CF2YII??(I) where YI, YII, equal to or different from each other, are Cl, Br, H and are not be contemporaneously H; and 4a) dehalogenating or dehydrohalogenating compounds (I) and obtaining perfluorov
Type:
Grant
Filed:
December 11, 2006
Date of Patent:
September 14, 2010
Assignee:
Solvay Solexis S.p.A.
Inventors:
Vito Tortelli, Pierangelo Calini, Alberto Zompatori, Emanuela Antenucci
Abstract: A process for preparing fluorovinylethers having general formula: RfO—CF?CF2??(IA) wherein Rf is a fluorinated or perfluorinated alkyl or cycloalkyl substituent; comprising the following reaction steps: 1) reaction of a hypofluorite; 2) dehalogenation or dehydrohalogenation of the fluorohalogenethers obtained in step 1) and obtainment of vinyl ethers; 3) fluorination with fluorine of the vinyl ethers and obtainment of fluorohalogenethers; and 4) dehydrohalogenation of the fluorohalogenethers and obtainment of the fluorovinylethers of formula (IV). The compounds of formula (IA) can be used, for example, in the preparation of various polymers, such as fluorinated elastomers and fluorinated thermoprocessable semicrystalline polymers.
Type:
Grant
Filed:
December 6, 2006
Date of Patent:
November 3, 2009
Assignee:
Solvay Solexis S.p.A.
Inventors:
Vito Tortelli, Pierangelo Calini, Alberto Zompatori, Emanuela Antenucci
Abstract: Described is a reaction of a fluorinated alkoxide with an alkyl fluorovinylalkyl ether, the alkyl fluorovinylalkyl ether having alpha-beta carbon-carbon unsaturation relative to the ether oxygen, to produce a hydrofluoroether.
Abstract: Functional internal alkynes are conveniently and economically prepared by dehydrohalogenating a dibromide with an alkali metal hydroxide in the presence of a phase transfer catalyst.
Type:
Grant
Filed:
November 8, 1989
Date of Patent:
March 3, 1992
Assignee:
Kenkel Research Corporation
Inventors:
James M. Renga, Alan G. Olivero, Mark Bosse
Abstract: A reagent comprising the product of the reaction of an alkali metal hydroxide with a polyglycol or a polyglycol monoalkyl ether and oxygen, effects complete decomposition of halogenated organic compounds, such as polychlorinated biphenyls (PCBs), when mixed therewith in the presence of oxygen.
Type:
Grant
Filed:
March 5, 1981
Date of Patent:
August 23, 1983
Assignee:
The Franklin Institute
Inventors:
Louis L. Pytlewski, Kenneth Krevitz, Arthur B. Smith