Kawasaki, Japan
Kawasaki, Japan

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An identification medium including a metal foil and a cholesteric resin layer fragmentally disposed on the metal foil. In the identification medium, chromaticity coordinates (x1, y1) in an xy chromaticity diagram of the metal foil and chromaticity coordinates (x2, y2) in an xy chromaticity diagram of the cholesteric resin layer satisfy:


Patent
Zeon Corporation | Date: 2017-05-03

A method of production of a conjugated diene rubber comprising a step of polymerizing isoprene or a monomer mixture containing isoprene and an aromatic vinyl monomer in an inert solvent by using a polymerization initiator so as to form a polymer block (A) having an active end, a step of mixing the polymer block (A) having an active end and 1,3-butadiene or a monomer mixture containing 1,3-butadiene and an aromatic vinyl monomer to continue a polymerization reaction so as to obtain a conjugated diene polymer chain having an active end and containing a polymer block (A) and a polymer block (B), and a step of reacting a compound represented by the following general formula (1) with the active end of the conjugated diene polymer chain having an active end:^(1) represents a functional group selected from a hydrocarbyloxy group, halogen group, and hydroxyl group, R^(1) represents a substituted or unsubstituted hydrocarbon group, each of R^(2) and R^(3) independently represents a substituted or unsubstituted hydrocarbon group, R^(2) and R^(3) may bond with each other to form a ring structure together with the nitrogen atom represented by N in the general formula (1), and, when forming the ring structure, R^(2) and R^(3) may form a ring structure together with a hetero atom other than the nitrogen atom represented by the N in addition to the nitrogen atom represented by the N, r is an integer of 0 to 2.


Patent
Zeon Corporation and Honda Corporation | Date: 2017-05-10

An acrylic rubber contains (a) methyl methacrylate units, (b) ethyl acrylate units, (c) n-butyl acrylate units, (d) 2-methoxyethyl acrylate units, and (e) cross-linking site monomer units, in which the acrylic rubber contains 10 to 20% by weight of (a) the methyl methacrylate units, 15% by weight or less of (b) the ethyl acrylate units, 60 to 80% by weight of (c) the n-butyl acrylate units, 10 to 30% by weight of (d) the 2-methoxyethyl acrylate units, and 0.5 to 5% by weight of (e) the cross-linking site monomer units.


A cyclopentene ring-opening polymer having, at a polymer chain end, a structure where a polymer chain and a group containing an alkoxysilyl group are bonded through -NH- and having a weight average molecular weight of 100,000 to 1,000,000, wherein the structure is a structure represented by the following general formula (1):pCP-Y^(1)-NH-Y^(2)-Si(OR^(1))_(a)(R^(2))_(3-a)(1)where, in the general formula (1), pCP represents a cyclopentene ring-opening polymer chain, Y^(1) represents a bivalent hydrocarbon group having 1 to 20 carbon atoms, each of R^(1) and R^(2) represents a hydrocarbon group having 1 to 20 carbon atoms, Y^(2) represents a bivalent hydrocarbon group having 1 to 20 carbon atoms in which -NH- may be interposed, and a is an integer of 1 to 3.


Provided are a production method for compound (II) including reacting compound (I) with a halogenating agent in the presence of at least 0.5 equivalents, relative to compound (I), of a nitrogen atom-containing polar aprotic solvent; a composition containing compound (II), a halogenating agent or the like, and at least 0.5 equivalents, relative to compound (II), of a nitrogen atom-containing polar aprotic solvent; a stabilization method for compound (II); and compound (II). Accordingly, a method for producing compound (II) with high purity in an industrially advantageous manner, a composition in which this production intermediate is stabilized, and a stabilization method for compound (II) are provided. R represents a hydrogen atom or a methyl group, Y^(1) and Y^(2) each represent a chemical single bond, -O-, -O-C(=O)-, -C(=O)-O-, or the like, G^(1) represents a divalent chain aliphatic group having a carbon number of 1-20 or the like, A^(1) and A^(2) each represent a divalent aromatic hydrocarbon group having a carbon number of 3-12, a divalent alicyclic hydrocarbon group having a carbon number of 3-12, or the like, n represents 0 or 1, and X represents a halogen atom.


The present invention is a method for culturing adherent cells that can allow adherent cells to survive and grow even in a suspended state, a culture vessel that is formed using an alicyclic structure-containing polymer, and includes a liquid medium, and adherent cells that survive in the liquid medium in a suspended state, and a method for producing a protein. The adhesive cells can be grown in a method for culturing adherent cells comprising bringing adherent cells into contact with an alicyclic structure-containing polymer formed article to grow the adherent cells in a state in which the adherent cells are suspended in a liquid medium.


Patent
Zeon Corporation | Date: 2017-05-03

A cross-linked rubber for a liquefied gas seal obtained by cross-linking a highly saturated nitrile rubber composition comprising a carboxyl group-containing highly saturated nitrile rubber (A1) containing 15 to 60 wt% of ,-ethylenically unsaturated nitrile monomer units and 1 to 60 wt% of ,-ethylenically unsaturated dicarboxylic acid monoester monomer units and having an iodine value of 120 or less, a highly saturated nitrile rubber (A2) containing ,-ethylenically unsaturated nitrile monomer units in 15 to 60 wt%, having a content of ,-ethylenically unsaturated dicarboxylic acid monoester monomer units of 0.9 wt% or less, and having an iodine value of 120 or less, a polyamide resin (B) having a melting point of 150C or more, and a cross-linking agent (C), wherein, in the highly saturated nitrile rubber composition, a weight ratio of carboxyl group-containing highly saturated nitrile rubber (A1):highly saturated nitrile rubber (A2) is 5:95 to 95:5 in range, a weight ratio of total of carboxyl group-containing highly saturated nitrile rubber (A1) and highly saturated nitrile rubber (A2):polyamide resin (B) is 95:5 to 50:50, and a storage elastic modulus E of the cross-linked rubber at 150C is 5 MPa or more is provided.


Patent
Zeon Corporation and Daikin Industries Ltd | Date: 2017-05-10

The present invention aims to provide a laminate including a fluororubber layer and an acrylic rubber layer which are firmly bonded to each other and are not separated even at high temperatures. The laminate of the present invention includes a fluororubber layer and an acrylic rubber layer. The fluororubber layer is formed from a fluororubber composition containing a fluororubber that contains a polyol-crosslinkable vinylidene fluoride unit, a polyol crosslinker, and a crosslinking accelerator. The crosslinking accelerator is a quaternary phosphonium salt free from a chlorine atom. The fluororubber has an acid value of 0.20 KOHmg/g or higher.


Provided is a viscous dispersion liquid useful for forming a semiconductor porous film (porous semiconductor layer) by low-temperature deposition. The viscous dispersion liquid contains water as a dispersion medium, and titanium dioxide nanoparticles, wherein the viscous dispersion liquid has a solid content concentration of 30% by mass to 60% by mass, the titanium dioxide nanoparticles include anatase crystalline titanium dioxide nanoparticles having an average particle diameter of 10 nm to 100 nm, and brookite crystalline titanium dioxide nanoparticles having an average particle diameter of 5 nm to 15 nm, and the viscous dispersion liquid has a viscosity of 10 Pas to 500 Pas at 25C.


Patent
Zeon Corporation | Date: 2017-05-17

Provided is a laminated glass including, in order: a first glass sheet; a first interlayer film; a transparent film laminated with a heat reflection film; a second interlayer film; and a second glass sheet, wherein the first interlayer film and the second interlayer film are formed of a modified hydrogenated block copolymer [E], the modified hydrogenated block copolymer [E] is a hydrogenated block copolymer [D] in which an alkoxysilyl group is incorporated, the hydrogenated block copolymer [D] being a block copolymer [C] in which 90% or more of all unsaturated bonds is hydrogenated, the block copolymer [C] is composed of at least two polymer blocks [A] including a repeat unit derived from an aromatic vinyl compound, and at least one polymer block [B] including a repeat unit derived from a linear conjugated diene compound, and the ratio of weight fraction [A] : [B] is 30:70 to 60:40.

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