Abstract:
Compositions for uses such as solvent cleaning and solvent extraction, comprising a compound according to Formula (I) or Formula (II) or Formula (III): where each R and each R' is independently selected from H, F, Cl, R1, and OR1, each R1 is independently: a C1 to C3 alkane that is unsubstituted or substituted with F and/or Cl; or C1 to C3 alkene that is unsubstituted or substituted with F and/or Cl; or Bz, where Bz is an unsubstituted benzene ring, and provided that the molecule has at least three F substituents bonded to a carbon in the cyclobutene ring.
Abstract:
A heat transfer composition for transferring heat and/or energy to and/or from an article, device or fluid, wherein the heat transfer composition comprises, consists essentially of or consists of a compound according to Formula (I) or Formula (II) or Formula (III).
Abstract:
The present invention describes a process for making CF 3 CH=CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl 4 ) to 1,2-dichloroethylene to form CCl 3 CHClCHCl 2 . The compound CCl 3 CHClCHCl 2 thus can then either be treated with HF to produce CF 3 CHClCHClF as the main product, or it can be converted to CCl 2 =CHCHCl 2 (1230za) by dechlorination. CCl 2 =CHCHCl 2 can be treated with HF such that the main product obtained is CF 3 CHClCHClF. CF 3 CH=CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF 3 CHClCHClF. The desired compound, CF 3 CH=CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF 3 CH2CHClF or by dechlorination of CF 3 CHClCHClF.
Abstract:
Anti-reflective coatings and coating solutions, optically transparent elements and improved processes for preparing AR coatings and coating solutions are described. The anti-reflective coatings are formed from a fluoropolymer derived from at least one fluoropropene compound. The fluoropolymer may applied as a coating solution that is curable at low temperatures.
Abstract:
Disclosed is a process for preparing cis-1,1,1,4,4,4-hexafluoropropene comprising the steps of (a) reacting CCl 4 with a compound having the formula CF 3 CX=CXH, where each X is independently halogen or hydrogen, to form a compound having the formula CF 3 CXClCXHCCl 3 ; (b) fluorinating the compound formed in step (a) to form a compound having the formula CF 3 CXHCXHCF 3 ; (c) converting the compound formed in step (b) by a reaction selected from the group consisting of dehydrohalogenation, dehalogenation and both reactions, to form a compound having the formula CF 3 C = CCF 3 ; and (d) catalytically reducing the compound formed in step (c) with hydrogen to form the compound having the formula (I).
Abstract:
A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one eccrine-derived compound; contacting said latent biometric with a developing solution, wherein said developing solution comprises at least one imaging reagent selected from ninhydrin and 1,8-diazafluoren-9-one and a carrier solvent comprising at least one C 3 - C 4 hydrofluorocarbon; and reacting said imaging reagent with said eccrine-derived compound to produce a visible physiological biometric.
Abstract:
Provided are azeotrope-like compositions comprising tetrafluoropropene and pentafluoropropene and uses thereof, including use in refrigerant compositions, blowing agent compositions, foamable compositions, foams, sterilant compositions, sprayable compositions, and systems and methods using same.
Abstract:
The invention pertains to a process for preparing chlorodifluoroacetyl fluoride (CDAF) by oxidation of chlorotrifluoroethylene (CTFE) in a solvent using a continuously stirred tank reactor. It provides a process for the production of chlorodifluoroacetyl fluoride by comprises reacting a solvent solution of chlorotrifluoroethylene with oxygen in a reactor to form a product which comprises chlorodifluoroacetyl fluoride. The reacting may be conducted in a continuous or batch mode.
Abstract:
Provided are methods of producing fluorinated alcohols from non-perfluorinated fluoroolefins and methanol. Certain preferred embodiments of such methods involve advantageously reacting a non-perfluorinated fluoroolefin with methanol under ambient-pressure and/or low-temperature conditions.