Patents in Class 562/825

Matches 1 - 50 out of 70

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Match	Document	Document Title
1	7531610	Fluorosulfonyl group-containing compound, method for its production and polymer thereof A compound containing two fluorosulfonyl groups which are groups convertible to sulfonic acid groups, an intermediate therefor, and methods for their production with high productivity, are...
2	7297815	Process for producing fluorinated sulfonyl fluoride compound It is an object of the present invention to solve difficulty in production and to provide a process to obtain fluorinated sulfonyl fluoride compound having various molecular structures efficiently...
3	7176331	Method of making fluorinated vinyl ethers The present application provides a process to produce fluorinated vinyl ether by reacting a 2-alkoxypropionyl fluoride with a metal carbonate under anhydrous conditions in a stirred bed reactor at...
4	7105697	Process for producing a fluorine atom-containing sulfonyl fluoride compound The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low...
5	7005545	Process for producing fluorinated fluorosulfonylalkyl vinyl ether The present invention provides a process for producing a fluorinated fluorosulfonylalkyl vinyl ether represented by general formula (2):
6	6790982	Process for producing a fluorine atom-containing sulfonyl fluoride compound The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low...
7	6624328	Preparation of perfluorinated vinyl ethers having a sulfonyl fluoride end-group A method is provided for making a perfluorinated vinyl ether having a sulfonyl fluoride end-group according to the formula FSO 2 —(CF 2 ) n —O—CF═CF 2 , where n is 2-5, comprising the steps...
8	6580006	Catalytic process for preparing perfluoroethanesulfonyl fluoride and/or perfluorodiethylsulfone The present invention provides a catalytic process for preparing perfluoroethanesulfonyl fluoride and/or perfluorodiethylsulfone using a two-part catalytic process comprising a metal fluoride and a...
9	6303814	N-[1,2,4]triazoloazinyl) benzenesulfonamide and pyridinesulfonamide compounds and their use as herbicides N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy[1,2,4]triazolo[1,5-c]pyr imidin-2-yl)be nzenesulfonamide,...
10	6274632	Derivatives of 4,4-difluorobut-3-enylsulfinic acid and their use as pesticides The invention relates to compounds of the formula (I): CF 2 CX--CH 2 --CH 2 --S(O)--R wherein X represents hydrogen, halogen or lower alkyl, and R represents a group OR 1 or NR 2 R 3 ...
11	5684192	Substituted trifluorostyrene monomeric compositions Sulfonyl fluoride substituted α,β,β-trifluorostyrene monomers are disclosed. The monomers are incorporated into polymeric compositions which are conveniently hydrolyzed to produce polymeric...
12	5347058	Process for the production of fluorinated olefins Fluorinated olefins are produced by thermolysis of a silyl ester of a fluorinated aliphatic carboxylic acid in the presence of a catalyst which provides fluoride ion, such as potassium fluoride....
13	5318674	Process for preparing perfluoroalkanesulfonyl fluorides A process for preparing perfluoroalkanesulfonyl fluorides, e.g., perfluoromethanesulfonyl fluoride, comprises electrochemically fluorinating in the presence of anhydrous hydrogen fluoride at least...
14	5159105	Higher pentafluorosulfanyl-fluoroaliphatic carbonyl and sulfonyl fluorides, and derivatives Pentafluorosulfanyl fluoroaliphatic carbonyl and sulfonyl fluorides, derivatives of the acid fluorides and the preparation and use of the acid fluorides and derivatives. The fluoroaliphatic moiety...
15	5117055	Method for direct conversion of fluorocarbonyl group into halogenides A perfluoroalkyl halogenide represented by the formula: ##STR1## wherein X stands for one element selected from the group consisting of iodine and bromine, R f for a perfluorohydrocarbon group, n...
16	5103050	Process for preparing perfluoroalkenyl-sulfonyl fluorides A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I) R f --CFCF--SO 2 F (I) wherein: R f is selected from the group consisting of F and a...
17	5103051	Process for preparing perfluoroalkenyl-sulfonil fluorides A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I) R f --CFCF--SO 2 F (I) wherein R f is selected from the group consisting of F and a...
18	4983747	Process for preparation of perfluoro organic compounds Disclosed is a process for the preparation of a perfluoroorganic compound, which comprises fluorinating a partially fluorinated or unfluorinated organic compound having carbon-to-fluorine bonds...
19	4962282	Direct fluorination of fluoro-beta-sultones in order to produce the corresponding fluorooxy-fluorosulfonyl-fluoro-compounds Preparation of fluorooxy-fluorosulfonyl-fluorocompounds by means of the direct fluorination with elemental fluorine of various β-sultones according to the following reaction scheme: ##STR1##...
20	4834922	Process to produce novel fluorocarbon vinyl ethers and resulting polymers Novel vinyl ethers are prepared in decarboxylation reactions of novel acid fluoride compounds according to the following reaction: ##STR1## wherein a is 0 or an integer greater than 0; b is 0 or...
21	4801409	Hypofluorites and bis-hypofluorites, and process for preparing same Mono- and bis-hypofluorites respectively of formula: FO 2 S--R f --CF 2 OF and FOCF 2 --R' f --CF 2 OF wherein R f is perfluoroalkylene or perfluorochloroalkylene and R' f is a...
22	4683090	Purification of organosulfonyl halides Metallic impurities are removed from liquid organosulfonyl halides by passing the contaminated material through a bed of activated carbon, preferably activated carbon containing adsorbed water.
23	4613467	Fluorosulfonylperfluoroalkyl compounds A novel fluorinated copolymer is prepared by copolymerization of a fluorinated olefin with a novel sulfur containing fluorinated vinylether of the formula: ##STR1## wherein k is 0 or 1 and l is an...
24	4597913	Intermediates for fluorinated cation exchange membrane A novel fluorinated cation exchange membrane containing carboxylic acid groups and sulfonic acid groups, both in the form of a specific pendant structure, the carboxylic acid groups being at least...
25	4554112	Method for the preparation of vinyl compounds Fluorovinyl compounds having the formula TLCFCF 2 are prepared by reacting compounds having the formula ##STR1## for a time and at a temperature sufficient to form the vinyl compound: where ...
26	4536352	Perfluoro vinyl ethers A novel fluorinated copolymer is prepared by copolymerization of a fluorinated olefin with a novel sulfur containing fluorinated vinylether of the formula: ##STR1## wherein k is 0 or 1 and l is an...
27	4511518	Perfluorinated fluorosulfonylalkyleneoxy-2-propanoyl fluoride and hexafluoroepoxide addition compounds A novel fluorinated copolymer is prepared by copolymerization of a fluorinated olefin with a novel sulfur containing fluorinated vinylether of the formula: ##STR1## wherein k is 0 or 1 and l is an...
28	4476058	Fluorosulfatoperfluoroalkanesulfonic acid halides A fluorosulfatoperfluoroalkanesulfonic acid halide of the formula ##STR1## wherein R f is F or perfluoroalkyl having 1-10 carbon atoms, X is Cl or F, and n is a number from 0 to 7.
29	4411841	Preparation of novel perfluorinated sulphonic acid fluorides Electrochemical fluorination of a thiophene-1,1-dioxide derivative of the formula ##STR1## produces the novel perfluorinated sulphonic acid fluoride of the formula ##STR2## in which X, Y and Z each...
30	4358412	Preparation of vinyl ethers The invention relates to a process to produce compounds represented by the general formula Y--(CFR f ) a --(CFR f ') b --O--CFCF 2 by decarboxylation of compounds represented by the general...
31	4348310	Solutions of sulfonyl fluoride compounds and fluoropolymers Solutions are disclosed with solvents having completely halogenated, saturated, hydrocarbon backbones and solubility parameters within a particular range. Preferred solvent have at least one ether...
32	4343749	Process for the preparation of monohydroperfluoroalkane-sulfonic acid halides and some specific representatives of this class of compound Monohydroperfluoroalkanesulfonic acid halides of the formula I ##STR1## in which R f =F or perfluoroalkyl, X=Cl or F and n=1-7, are prepared by reacting monohydroperfluoroalkanesulfonic acids of...
33	4340750	Process for producing fluorovinyl ether A fluorovinyl ether having the formula XRfCF 2 OCFCF 2 (I) wherein X represents --H, --Cl, --Br, --F, --CO 2 R, --CONRR', --SO 2 F, ##STR1## or --COF and R...
34	4337211	Fluorocarbon ethers having substituted halogen site(s) and process to prepare Novel perhalofluoro ethers and methods for preparing the same having generic formula, ##STR1## wherein a=0 or an integer greater than O; b=0 or an integer greater than O; n=zero or an integer...
35	4311651	Fluoroalkoxysulfur fluorides Fluoroalkoxysulfur fluorides of the formula ##STR1## wherein R is H, CH 3 , CF 3 , or C 2 F 5 , and n is 1 or 2; their preparation by reaction of lithium fluoroalkoxides with sulfur tetrafluoride;...
36	4269790	Hydrocarbylethyl sulfonyl fluoride Hydrocarbylethyl sulfonyl fluorides in which the hydrocarbyl substituent contains at least 3 carbon atoms, can be prepared by reacting 2-mercaptoethanol with chlorine to form chloroethyl sulfonyl...
37	4254030	Fluorosulphonyl oxafluoroalkanes fluorosulphonyl olefines and processes for their preparation A new class of fluorosulphonyl oxafluoroalkanes and their derivatives is disclosed as well as a process for preparing said products. Furthermore, a new class of fluorosulphonyl olefins, copolymers...
38	4180639	Fluorosulphonyl oxafluoroalkanes, fluorosulphonyl olefines, _their copolymers and processes for preparation A new class fluorosulphonyl oxafluoroalkanes and of their derivatives is disclosed as well as a process for preparing said products. Furthermore, a new class of fluorosulphonyl olefins, copolymers...
39	RE29534	Purification of perfluorosulfonyl fluoride perfluorovinyl ethers by thermal decomposition of unstable isomers The separation of primary perfluorosulfonyl fluoride perfluorovinyl ethers from their isomers by selective pyrolysis and the preparation of copolymers of tetrafluoroethylene from the purified...
40	4060549	Process for preparing sulfonic acid fluorides Sulfonic acid fluorides are prepared by reacting sulfonic acid halides with inorganic fluorides in an organic-aqueous phase. The reaction is carried out in the presence of catalytic amounts of an...
41	4020112	Oxidative fluorination of phenols Phenols are oxidatively fluorinated by reaction with sulfur tetrafluoride in hydrogen fluoride solution at about 0° to 250° C. to form products which are useful as solvents and/or plasticizers...
42	4005138	Process for the manufacture of sulphonic acid fluorides A process for the manufacture of sulphonic acid fluorides of the formula RSO 2 F, wherein R represents a straight-chain or a branched alkyl or cycloalkyl radical is provided. The process is...
43	4001319	Process for the preparation of carbacyl halosulfates Compounds containing carboxylic acid fluoride or chloride groups react with sulfur trioxide at temperatures between -30° to about 100° C to give carbonyl fluoro- or chlorosulfates. Preferred...
44	3920738	Preparation of methane sulfonyl fluoride Methane sulfonyl fluoride is prepared by reacting methane sulfonyl chloride with an aqueous solution of potassium fluoride at temperatures below about 50°C. Following completion of the reaction,...
45	3718627	CF =CFCF CF SO F AND DERIVATIVES AND POLYMERS THEREOF The compound CF 2 =CFCF 2 CF 2 SO 2 F and derivatives thereof are prepared and polymerized to polymers, including copolymers such as with tetrafluoroethylene, which are useful as ion exchange...
46	3714245	UNSATURATED α-HYDROPERFLUOROALKYLSULFONYL FLUORIDES New compounds CF 2 =CF(CFR) n CFHSO 2 F wherein R is F or perfluoroalkyl containing one to five carbon atoms and n is an integer of 1 to 5, are prepared by reacting SO 3 with the corresponding...
47	3692815	FLUOROXIDANTS 1. A compound of the formula Wherein Q is an atom in its highest oxidation state, said atom being selected from the class consisting of carbon and phosphorus, R f is selected from the class...
48	3542864	PROCESS FOR THE PRODUCTION OF PERFLUOROALKANESULFONYL FLUORIDES
49	3492348	PREPARATION OF VINYL SULFONYL FLUORIDES
50	3476753	TERTIARYAMINO PERFLUORO ALKYLENE SULFONIC ACID FLUORIDES

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