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7538171 |
Fluorine-containing copolymer
A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula:
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6963015 |
Ethylene-hexafluoropropylene copolymer elastomer
The present invention provides an ethylene-hexafluoropropylene copolymer which is suitable as a hose or seal for engine oil of an automobile and has sufficient amine resistance, while maintaining...
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6824709 |
Fluorene derivatives and their polymers
Provided are a fluorene derivative represented by Formula (1) and a polymer thereof: wherein at least one of A 1 , A 2 and A 3 is a group represented by Formula (2), and the others are...
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6682661 |
Electrooptical liquid crystal system
To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electroptical system. The electroptical...
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6670511 |
Fluorine-containing diene, its production method and its polymer
A fluorine-containing diene represented by the formula 1: CF 2 ═CF(CF 2 ) n CXYOCF═CF 2 Formula 1 wherein each of X and Y which are independent of each other, is an atom selected from a...
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6388146 |
Polymerizable compound, polymerizable resin composition, cured polymer and liquid crystal display device
The polymerizable compound of this invention is represented by general formula (I): where R is H, R′, R′O, R′COO, or R′OCO, R′ is a linear or branched alkyl group or alkenyl group...
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6365676 |
Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams
The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF 3 (CF 2 ) h —I, where h is an integer from 4 to 18, with a compound having a terminal olefinic...
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6350925 |
Perhaloethyl aromatic compounds and perhaloethenyl aromatic compounds therefrom
A synthesis is provided for α,β-difluoro-β-halo-ethenyl aromatic compounds such as α,β,β-trifluorostyrenes by a process of reacting CFX 2 CFXI, wherein each X is independently F or Cl,...
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6342572 |
Flame retardant benzocyclobutene resin with reduced brittleness
The invention pertains to benzocyclobutene resins having flame retardant properties. Such resins have a high glass transition temperature (Tg>250° C.), low moisture absorption, low dielectric...
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6222064 |
Fluorination with aminosulfur trifluorides
A fluorination method of oxygen and halogen sites with diaryl-, dialkoxyalkyl-, alkylalkoxyalkyl-, arylalkoxyalkyl- and cyclic aminosulfur trifluorides fluorinating reagents is disclosed.
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6166156 |
Method for making photocurable halofluorinated acrylates
Halofluorinated alkylene monomers are made by a method comprising the steps of: (a) subjecting a first polymer which is the reaction product of a fluorinated vinyl monomer and a vinyl comonomer to...
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5886242 |
Polymerizable, chiral compounds and their use
The invention relates to chiral compounds containing at least one divalent or polyvalent chiral group, at least one polymerizable group, at least one spacer and at least one mesogenic group, and to...
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5446214 |
Cotelomers and a process for making them
A cotelomer of --CH 2 CF 2 -- (VDF) units and CF 2 CF(CF 3 )-- (HFP) units characterized in that the HEP units comprise at least 33% of all VDF and HFP units in the cotelomer combined. Also...
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5240574 |
Process for the photochemical production of halogen compounds
The present invention provides a process for the photochemical production of compounds of the general formula: R--(C 2 R 4 ') n --X by telomerisation of an alkyl halide R--X as telogen and of...
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5169998 |
Chemically inert fluorinated organosilicon compounds and fluorocarbon telomers for preparing same
Chemically inert fluorinated organosilicon compounds for use as, e.g., lubricants are described corresponding to the formulae R 1 4 Si or R 2 3 Si(R 3 SiR 4 2 ) z R 23 , where z is from 1...
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5145592 |
Neutral hydrogen-free fluorocarbon cotelomers
A class of neutral, hydrogen-free liquid or waxy perfluorinated cotelomers is described. The cotelomers contain more than 50% weight of fluorine and are derived from chlorotrifluoroethylene and a...
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5015790 |
1,1,2-trifluoro-6-iodo-1-hexene, 1,1,2-trifluoro-1,5-hexadiene, and processes therefore
Fluorine-containing iodo-substituted 1-hexenes, their preparation by the addition of two moles of ethylene to fluorine-containing iodo olefins, and their dehydroiodination to fluorine-containing...
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4833274 |
Perfluoroalkanes and haloperfluoroalkanes, their percursors and process for their synthesis
New perfluoroalkanes and haloperfluoroalkanes, having low melting point and high thermal and chemical stability, constituted by preferably branched perfluorinated and haloperfluorinated chains,...
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4808760 |
Telomers prepared from chlorotrifluoroethylene and 1,2-dibromo-2-chlorotrifluoroethane
Telomers are prepared by reacting chlorotrifluoroethylene with 1,2-dibromo-2-chlorotrifluoroethane (CBrClFCF 2 Br) in the presence of a redox catalyst system comprising a metal halide selected...
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4770797 |
Carbon fluoride chloride lubricant
The application of carbon fluoride chloride in dry lubricant compositions is disclosed. The material offers a substantial improvement in lubricating properties over prior art carbon fluoride dry...
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4668710 |
Trihalovinyl polyol ethers
Included are trihalovinyl polyol ethers. The compositions have pendant 1,2,2-trihaloethenyl moieties. The compositions may be low viscosity oils or highly polymeric such as incorporated with a...
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4307259 |
Preparation of tetrabromotetrachloroperfluorododecanes
A substantially pure mixture of tetrabromotetrachloroperfluorododecanes of the empirical formula C 12 Br 4 Cl 4 F 18 , of which the isomer ##STR1## is a significant part, is prepared by...
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3668262 |
HIGH DENSITY FLUOROBROMOALKANES FOR GYROSCOPE FLOTATION
Totally substituted fluoro-bromo hydrocarbons useful as gyroscopic damping and flotation oils are obtained by reacting tetrabromomethane with bromotrifluoroethylene or tribromofluoromethane with...
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3337435 |
Method of preparing carboxylic acid salts of fluoro telomers
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3240825 |
Homotelomers of 2,3,3,3-tetrafluoropropene-1 and method for making same
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3235611 |
Telomers of tetrafluoroethylene and tetrachloroethylene
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3091648 |
Vinylidine fluoride derived cotelomer oils
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3089911 |
Halogenated organic compounds
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3083238 |
Fluorinated hydrocarbon polymers and preparation thereof
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3055953 |
Ethylene telomers and process of preparing same
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3016407 |
Telomers from ch=ch and icf2cf2i
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2975220 |
Fluorinated organic compounds
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2972638 |
Process for making fluorinated compounds
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2951096 |
Liquid polymers of polyunsaturated fluoroolefins
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2898382 |
Halogenated cotelomers
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2875253 |
Telomerization with fluorobromoalkanes
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2788375 |
Oxygen free halopolyfluoro compounds and method of producing same
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