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| Number | Title | Issue Date |
| 7754901 | Method for producing fluorinated compounds and polymers A fluorinated polymer comprising a unit represented by the following formula (1), a method for producing fluorinated compounds and the fluorinated polymers, and an optical/electrical material or coating material comprising the fluorinated polymer. ... | 07/13/2010 |
| 7635780 | Method for producing fluorinated 1,3-dioxolane compounds, fluorinated 1, 3-dioxolane compounds, fluorinated polymers of the fluorinated 1,3-dioxolane compounds and optical or electrical materials using the polymers A production method of fluorinated compounds, for producing a compound represented by formula (3) in a fluorine-based solution in a flow of fluorine gas after reaction of at least one type of compounds represented by formula (1) and at least one type of compounds re... | 12/22/2009 |
| 7385067 | Process for the preparation of compounds having a CFO bridge The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the... | 06/10/2008 |
| 7332554 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7332555 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7247737 | Perfluoropolyethers comprising repeating units obtained from oxidation of perfluorodioxoles Perfluoropolyethers obtained by oxidation of perfluorodioxoles of formula (I) wherein Rf=—F, —(O)yCnF2n+1 with y=0, 1 and n=1, 2, 3, 4, 5, and with W=—F, —C | 07/24/2007 |
| 7232872 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 06/19/2007 |
| 7214750 | Polymerization processes The invention relates to new processes to produce polymers utilizing bayonette cooled slurry reactor systems and diluents including hydrofluorocarbons. ... | 05/08/2007 |
| 7199199 | Perfluorinated polymers Amorphous perfluorinated homopolymers and copolymers of perfluorodioxoles of formula (IA): wherein R′F is equal to RF or ORF wherein RF is a linear or branched perfluor... | 04/03/2007 |
| 7195719 | High polarization ferroelectric liquid crystal compositions The invention relates to chiral nonracemic liquid crystal compounds having achiral tails comprising a perfluoroalkyl terminal portion which are useful as components in liquid crystal to impart high polarization to the mixture. The materials of this invention can be ... | 03/27/2007 |
| 7041345 | Chiral compounds III The invention relates to chiral compounds of formula (I) wherein Y1, Y2, Y3, Y4, X1, X2, X3 and X4 have the meaning given in claim 1, to liquid crystalline mixtures comprising at... | 05/09/2006 |
| 6916940 | Method for producing cyclic carboxylic orthoester fluorides and corresponding compounds The invention relates to a process for the preparation of cyclic carboxylic acid orthoester fluorides in which a) at least one bis(alkylthio)carbenium salt is reacted with at least one organic compound containing at least two hydroxyl groups in the pres... | 07/12/2005 |
| 6844375 | 4-methylene-1,3-dioxolanes as cross-linking agents The invention relates to: 4-methylene-1,3-dioxolanes of the general formula (I) wherein R1 denotes hydrogen, C5-C6-cycloalkyl or C1-C4-alkyl; m and n, which may be the same o... | 01/18/2005 |
| 6590110 | Method for synthesizing C-glycosides of ulosonic acids The invention is directed to a method for synthesizing C-glycosides of ulosonic acids, as well as intermediates thereof and C-glycosides prepared by this method.... | 07/08/2003 |
| 6469185 | Perfluorodioxoles Perfluoro-4-alkyl-1,3-dioxoles having the general formula ##STR1## wherein Rf is a perfluoroalkylic radical having from 1 to 5 carbon atoms, allow to prepare copolymers with Tg higher than those of the copolymers containing the same molar perce... | 10/22/2002 |
| 6355812 | Methods for the synthesis of dioxoalkanoic acid compounds The invention relates to improved methods of producing aryl dioxoalkanoic acid compounds and derivatives useful as intermediates for diarylpyrrole therapeutic agents by the alcoholysis of benzoylcyclohexanone ketal compounds.... | 03/12/2002 |
| 6350431 | Compounds This invention provides a physiologically tolerable light imaging contrast agent compound having a molecular weight in the range 500 to 5000000 and containing at least two chromophores having delocalized electron systems as well as at least one polyalkyle... | 02/26/2002 |
| 5969074 | Reaction of perfluoroolefins with Bis (Silyl) ethers to produce fluorinated compounds A reaction of perfluoroolefins with bis(silyl) ethers to produce novel partially fluorinated and perfluorinated copolymers and macrocyclic compounds is disclosed.... | 10/19/1999 |
| 5851425 | Imidazothiazoles Compounds of the general formula ##STR1## have a pronounced tendency to form liquid crystalline S (smectic) phases. Thus, optically inactive compounds of the formula I also have a tilted smectic phase, in particular an SC phase, in additio... | 12/22/1998 |
| 5834498 | Cyclopentane heptan(ene)oic acid, 2-heteroarylalkenyl derivatives as therapeutic agents The invention relates to the use of derivatives of F-type prostaglandins as ocular hypotensives. The PGF derivatives used in accordance with the invention are represented by the following formula I: ##STR1## wherein wavy line attachments indicate eit... | 11/10/1998 |
| 5750730 | Fluorine-containing dioxolane compound, electrolytic solution composition, battery and capacitor Fluorine-containing dioxolane compounds and electrolytic solution compositions containing the fluorine-containing dioxolane compounds are disclosed. Lithium secondary batteries or electric double layer capacitors, having various improved characteristics s... | 05/12/1998 |
| 5670666 | Process for preparing intermediates for the synthesis of D1 antagonists Disclosed are a process and intermediates of the formulae ##STR1## wherein X- is halide, BF4-, R3 SO3-, wherein R3 is C1 -C6 alkyl, CF3, C1... | 09/23/1997 |
| 5635107 | Fluorine-containing five-membered ring compounds, and a liquid-crystaline medium containing them Fluorine-containing five-membered ring compounds of the formula I R1 -(A1 -Z1)m -A2 -Z2 -W I in which W is ##STR1## is a cyclohexane, cyclohexene or phenyl, Y1 is O or S, Y2 | 06/03/1997 |
| 5602262 | Process for the preparation of 2-deoxy-2,2-difluoro-ଲ-D-ribo-pentopyranose A process for producing intermediate compounds 2-deoxy 2,2-difluoro-ଲ-D-ribo-pentopyranose (III) from 3,3-difluoro-4,5,6-O-trihydroxy-5,6-O-(1-ethylpropylidene)hexene (I). The process of preparing intermediate compound (I) involves reacting D-g... | 02/11/1997 |
| 5571932 | Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom The invention relates to new thermoprocessable copolymers of tetrafluoroethylene constituted by perfluoromethylvinylether (0.5-13% by weight), a fluorinated dioxole (0.05-3%) and tetrafluoroethylene (difference to 100%), particularly useful for coating el... | 11/05/1996 |
| 5523422 | Monomer precursor isomerization A process is disclosed for producing a 2,2-bis-substituted-trans-4,5-dichloro-4,5-difluorodioxolane of the formula ##STR1## wherein Rf is selected from the group consisting of --R2f, --F, --C(O)F, --C(O)OR and R | 06/04/1996 |
| 5495028 | Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom The invention relates to new thermoprocessable copolymers of tetrafluoroethylene constituted by perfluoromethylvinylether (0.5-13% by weight), a fluorinated dioxole (0.05-3%) and tetrafluoroethylene (difference to 100%), particularly useful for coating el... | 02/27/1996 |
| 5457215 | Reaction of perfluoroolefins with bis(silyl) ethers to produce fluorinated compounds A reaction of perfluoroolefins with bis(silyl) ethers to produce novel partially fluorinated and perfluorinated copolymers and macrocyclic compounds is disclosed.... | 10/10/1995 |
| 5334731 | Polyhalodihydrodioxins and polyhalodioxoles This invention is directed to halodihydrodioxins, their preparation and their polymers, which provide amorphous homopolymers that are resistant to ring opening side reactions. The resulting polymers can be used for films and thermally stable molded object... | 08/02/1994 |
| 5296617 | Process for preparing 1,3-dioxoles A process for preparing 1,3-dioxoles of formula: ##STR1## in which X1 and X3, like or different from each other, are F or H, X5 and X6, like or different from each other, are F or CF3, by dehalog... | 03/22/1994 |
| 5266708 | New intermediates, process for their preparation, and their use for the synthesis of vitamins A and E New intermediates and processes for the preparation of vitamins A and E, which are the acetals of 5,6-dihalo-3-methyl-3-hydroxyhexanal or of 6-halo-3-hydroxy-3-methyl-5-hexenal or 3-methyl-3-hydroxy-5-hexenal, as well as processes for making the intermedi... | 11/30/1993 |
| 5266576 | N-myristoyl transferase inhibitors The invention relates to a compound of formula (I): ##STR1## which can be used as N-myristoyltransferase inhibitors, in which R1 represents hydrogen, substituted or unsubstituted (C1 -C6) alkyl, substituted or unsubst... | 11/30/1993 |
| 5245054 | Process for the dehalogenation of 1,3-dioxolanes A process for the dehalogenation of 1,3-dioxolanes of formula: ##STR1## wherein X1 and X3, like or different from each other, are Cl or Br, X2 and X4, like or different from each other, are F or H. Said pro... | 09/14/1993 |
| 5235074 | Halogenated 1,3-dioxolanes This invention process for preparing 1,3-dioxolanes of formula: ##STR1## wherein; X1, X2, X3 and X4, like or different from one another, represent F, Cl, Br, I, CF2 OSO2 F, SO2 F... | 08/10/1993 |
| 5233058 | Partially fluorinated compounds and polymers Partially fluorinated compounds of specified formulas that are useful as chemical intermediates and monomers are disclosed. Partially fluorinated polymers prepared from one of these compounds are also disclosed. Fluoro-2,2-dimethyldioxolanes and copolymer... | 08/03/1993 |
| 5227500 | Halogenated 1,3-dioxolanes and derivatives There are disclosed halogenated dioxolanes of a specified formula, dioxoles made therefrom, polymers of the dioxoles, and processes for making the dioxolanes.... | 07/13/1993 |
| 5225576 | Process for preparing halogenated 1,3-dioxolanes This invention relates to a process for preparing 1,3-dioxolanes of formula: ##STR1## wherein; X1, X2, X3 and X4, like or different from one another, represent F, Cl, Br, I, CF2 OSO2 F... | 07/06/1993 |
| 5214167 | Epoxides and their preparation Process comprising heating a dioxole at 100°-400° C. for a sufficient time to convert the dioxole to an epoxide, for example, bis-2,2-trifluoromethyl-4,5-difluoro-1,3-dioxole to 2,3-epoxy-3-trifluoromethyl-4-trifluorobutyryl fluoride.... | 05/25/1993 |
| 5198556 | Dioxolane-containing fluoroepoxides The present invention concerns novel dioxolane containing fluoroepoxides that are useful as curing materials, adhesives lubricants and coatings.... | 03/30/1993 |
| 5177224 | Process for the preparation of halogenated 2,2-bis(trifluoromethyl)-1,3-dioxolanes A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of the formula ##STR1## wherein Rf is perhaloalkyl comprising a 2,2-bis(trihaloalkyl)-1,3-dioxolane in the presence of at least one of La, Ni, Sn, Zn, F... | 01/05/1993 |
