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441 results about "Bromine atom" patented technology

Bromine has an atomic number of 35. So for an atom to be known as a bromine atom, it must have 35 protons. For example, if an atom has 36 protons, it will be no longer be bromine, but will instead be krypton.

Method of forming thin film

There is provided a method of forming a thin film of vinylidene fluoride homopolymer having crystal form I which is applicable to various substrates in relatively easy way (coating conditions, application method, etc.), a process for preparing a vinylidene fluoride homopolymer having crystal form I efficiently at high purity, and novel vinylidene fluoride homopolymers which can give a thin film being excellent in ferroelectricity. The method of forming a thin film of vinylidene fluoride homopolymer comprises (i) a step for preparing a green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component by subjecting vinylidene fluoride to radical polymerization in the presence of a bromine compound or iodine compound having 1 to 20 carbon atoms which contains at least one moiety represented by —CRf1Rf2X1, wherein X1 is iodine atom or bromine atom; Rf1 and Rf2 are the same or different and each is selected from fluorine atom or perfluoroalkyl groups having 1 to 5 carbon atoms and (ii) a step for forming a thin film on a substrate surface by using vinylidene fluoride homopolymer which comprises crystal form I alone or as main component and is obtained from the green powder product of vinylidene fluoride homopolymer comprising crystal form I alone or as main component.
Owner:DAIKIN IND LTD

Use of a catalyst system comprising nickel palladium or platinum and imidazoline-2-ylidene or imidazolidine-2-ylidene in stille coupling reactions

This invention provides a process for conducting Stille coupling reactions. The processes of the present invention make use of N-heterocyclic carbenes as ancillary ligands in Stille couplings of aryl halides. A Stille coupling can be carried out by mixing, in a liquid medium, at least one strong base; at least one aryl halide or aryl pseudohalide in which all substituents are other than stannyl groups, wherein the aryl halide has, directly bonded to the aromatic ring(s), at least one halogen atom selected from the group consisting of a chlorine atom, a bromine atom, and an iodine atom; at least one organotin compound wherein the tin atom is quaternary, wherein one group bound to the tin atom is unsaturated at the alpha or beta position, and wherein each of the remaining groups bound to the tin atom is a saturated group; at least one metal compound comprising at least one metal atom selected from nickel, palladium, and platinum, wherein the formal oxidation state of the metal is zero or two; and at least one N-heterocyclic carbene. One preferred type of N-heterocyclic carbene is an imidazoline-2-ylidene of the formulawherein R1 and R2 are each, independently, alkyl or aryl groups having at least 3 carbon atoms, R3 and R4 are each, independently, a hydrogen atom, a halogen atom, or a hydrocarbyl group.
Owner:RES & TECH FOUND UNIV OF NEW ORLEANS

Green photosensitive resin compsition, photosensitive transprint material, color filter substrate and display device

The present invention provides a green photosensitive resin composition capable of forming a pattern with excellent linearity, a photosensitive transfer material using the composition, a color filter substrate having good chroma and high color purity, and a color filter substrate having the color filter. display device on a chip substrate. The present invention provides a method characterized in that it contains at least a pigment, a pigment dispersant, a binder, a photopolymerizable compound, and a photopolymerization initiator, at least one of the pigments is a compound represented by the following general formula, and the pigment dispersant A green photosensitive resin composition in which at least one amino group-containing compound is used, a photosensitive transfer material produced using the composition, a color filter substrate using the material, and a display device equipped with the color filter substrate. (In the formula, M represents a specified metal atom. X 1 ~X 16 Any 8-16 positions in the formula are represented by halogen atoms, and the rest are represented by hydrogen atoms. Y represents a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or an oxygen atom, and m represents an integer of 0 to 2).
Owner:FUJIFILM CORP
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