摘要:
A fluorine-containing polymer composition comprising a solvent containing a block compound composed of a polyfluorinated segment and a hydrocarbon segment and a fluorine-containing polymer having a fluorine-containing aliphatic cyclic structure dissolved in the solvent.
摘要:
A pellicle which is excellent in transmittance and durability against short wavelength light, and which can be used for photolithography by using e.g. a KrF excimer laser, is provided.A pellicle for exposure to a light having a wavelength of at most 200 nm, which comprises a frame and a pellicle membrane bonded to the frame by means of an adhesive, wherein the pellicle membrane and/or the adhesive comprises a polymer containing repeating units represented by the following formula (1): wherein Q represents a C1-3 polyfluoroalkylene group having a linear structure, or a group having at least one atom selected from hydrogen atoms and fluorine atoms in such a polyfluoroalkylene group substituted by a substituent comprising a polyfluoroalkyl group which may contain an ethereal oxygen atom, or the like, and X represents a hydrogen atom, a fluorine atom or a C1-3 polyfluoroalkyl group which may contain an ethereal oxygen atom.
摘要:
Provided is a tetrafluoroethylene copolymer consisting of a unit based on tetrafluoroethylene and a unit based on a monomer represented by CF2═CFORf1Rf2 (where Rf1 is a polyfluoroalkylene group which may contain an etheric oxygen atom and Rf2 is a polyfluorocycloalkyl group which may contain an etheric oxygen atom), wherein a content of the latter is from 0.005 to 0.5% by mass. The tetrafluoroethylene copolymer is excellent both in paste extrudability and in heat resistance, has characteristics such as excellent transparency of a molded product, and is suitably applicable to paste extrusion and compression molding.
摘要:
This invention provides a novel fluorinated ether compound represented by the following formula (I), which has a short atmospheric lifetime and which is stable under use conditions. The fluorinated ether compound of the invention is useful as a fluorinated inert medium or the like. Rf(CH2)nO(CH2)nRf (I) wherein Rf is a C1-10 fluorinated monovalent saturated organic group, and n is 3 or 4.
摘要:
A water and oil repellent aqueous dispersion is provided which is excellent in water and oil repellency and waterdrop rolling property and has dispersion stability even in the presence of co-agents and contaminants in the treatment bath. A preparative process comprises emulsifying a stock composition containing a polymerizable monomer containing a (meth)acrylate having perfluoroalkyl group as an essential component, a non-fluorine type surfactant containing no aromatic group, water and a solvent having a viscosity of at least 3 cP at 25° C. under pressure and polymerizing the stock composition.
摘要:
A method for producing a fluoroalcohol of the following formula 1a, which comprises reacting a compound of the following formula 1 with water in a liquid phase at a temperature of 150° C. or higher under a gauge pressure of 0.4 MPa or higher: wherein n is an integer of from 1 to 5, X is a chlorine atom, a bromine atom or an iodine atom, p is an integer of at least 1, and R is a p-valent organic group, provided that when p is 1, R may be a hydrogen atom or a halogen atom.
摘要:
A method for producing a hydrofluorocarbon of the formula H.sub.n R.sub.f H wherein n is 0 or 1, and when n is 0, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkyl group, and when n is 1, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkylene group, which comprises reacting an iodofluorocarbon of the formula I.sub.n R.sub.f I wherein n and R.sub.f are as defined above, with a reducing agent in a gas phase.
摘要翻译:一种制备式H n R f H的氢氟烃的方法,其中n为0或1,当n为0时,Rf为C2-12直链或支链多氟烷基,当n为1时,Rf为C2-12直链或支链 包括将其中n和Rf如上定义的式InRfI的氟碘化碳与气相中的还原剂反应。
摘要:
A method for producing a hydrofluorocarbon of the formula H.sub.n R.sub.f H wherein n is 0 or 1, and when n is 0, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkyl group, and when n is 1, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkylene group, which comprises reacting an iodofluorocarbon of the formula I.sub.n R.sub.f I wherein n and R.sub.f are as defined above, with hydrogen at a temperature of not higher than 450.degree. C. in a gas phase.
摘要翻译:一种制备式H n R f H的氢氟烃的方法,其中n为0或1,当n为0时,Rf为C2-12直链或支链多氟烷基,当n为1时,Rf为C2-12直链或支链 包括使其中n和Rf如上所定义的式IIFF 1的碘氟化物与氢气在不高于450℃的气相中反应。
摘要:
A method for producing a hydrofluorocarbon of the formula a H.sub.n R.sub.f H wherein n is 0 or 1, and when n is 0, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkyl group, and when n is 1, R.sub.f is a C.sub.2-12 linear or branched polyfluoroalkylene group, which comprises reacting an iodofluorocarbon of the formula I.sub.n R.sub.f I wherein n and R.sub.f are as defined above, with an alkali metal hydroxide under action of an alcohol mixture comprising a primary alcohol and a secondary alcohol.
摘要:
A water and oil repellant having desoiling properties composed of a polyfluorinated group-containing copolymer obtained by copolymerizing the following monomers a and b as essential constituting components:a: a polyfluorinated group-containing monomerb: an amphipathic monomer having a hydrophilic moiety and a lipophilic moiety.