Minami-rinkan, Japan
Minami-rinkan, Japan

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Patent
Dai Ichi Kogyo Seiyaku Co. and Osaka Soda Co. | Date: 2017-05-10

In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.


Patent
Dai Ichi Kogyo Seiyaku Co. and Osaka Soda Co. | Date: 2015-06-26

In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.


The purpose of the present invention is to provide a carboxymethyl cellulose salt for the electrode of a nonaqueous electrolyte secondary battery, which is capable of achieving a good balance between prevention of defeats such as streaks and pinholes on a coated electrode surface and excellent adhesive strength to a current collector or excellent adhesive strength between active materials. A manufacturing method which includes: (1) an alkali cellulose reaction step wherein a mixed solvent having a mixing ratio (a mass ratio) of an alcohol having a carbon number of 3 or less and water of 75:25 to 95:5 is used, and the concentration of the base to the water is 25 to 40 mass%; (2) an etherification reaction step wherein a reaction is carried out under an excess base of 0.2 to 0.5 moles per unit of an anhydroglucose of the cellulose; (3) a neutralization step wherein acid is added after the etherification reaction is complete to adjust the pH of the reaction mixture to 6.0 to 8.0; and (4) a heating step wherein the mixed solvent is removed after the neutralization step is complete, and a base is added to adjust the pH of the reaction mixture to 8.0 to 9.0, and then a heat treatment is performed at 40 to 70C for 30 to 120 minutes.


Patent
Dai Ichi Kogyo Seiyaku Co. | Date: 2016-05-11

A reactive surfactant composition comprising one kind or two or more kinds of reactive surfactants (X) represented by a following general formula (I) and one kind or two or more kinds of polyfunctional compounds (Y) represented by a following general formula (II) (in the formulae, D represents a polymerizable unsaturated group represented by either of D-1 and D-2, R^(1) represents a hydrogen atom or a methyl group, A represents an alkylene group or a substituted alkylene group having from 2 to 4 carbon atoms, n1 and n2 represent an addition mole number of from 0 to 1,000, T represents a hydrogen atom or an anionic hydrophilic group selected from (CH_(2))_(a)-SO_(3)M, -(CH_(2))_(b)-COOM, -PO_(3)M2,-P(U)O_(2)M, and -CO-CH_(2)-CH(SO_(3)M)-COOM, a and b each represents a number of from 0 to 4, U represents a residue in which T is eliminated from the general formula (I) or general formula (II), M independently represents a hydrogen atom, an alkali metal atom, an alkali earth metal atom, an ammonium residue, or an alkanol amine residue, and m1, m2 and m3 represent numbers of substituents of from 1 to 2, from 1 to 3 and from 2 to 3, respectively.) suppresses foaming of an emulsion material and a dispersion material, has a high polymerization stability, for example, in the case of using as an emulsifier for emulsion polymerization, and can further improve various characteristics such as water resistance of coating films.


Patent
Dai Ichi Kogyo Seiyaku Co. | Date: 2015-09-23

Provided is a recyclable flame-retardant foamed styrene resin composition having high flame-retardancy and heat stability by adding little bromine-containing flame retardant. A flame-retardant foamed styrene resin composition containing (A) a styrene resin, (B) a mixture of (B1) tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) and (B2) another bromine-containing flame retardant, (C) zinc-modified hydrotalcite, (D) zeolite, and (G) a foaming agent, containing 0.005-0.08 parts by weight of (C) the zinc-modified hydrotalcite per 100 parts by weight of (A) the styrene resin.


To provide an alkylene oxide-modified polyfunctional (meth)acrylate wherein the problems according to high crystallinity or high viscosity, such as bad handleability and high cure shrinkage factor are improved, and the photosensitivity, surface hardness, contamination resistance, etc. are enhanced; and a reactive composition containing the same. The compound has a structure represented by the following formula (I), provided that in the formula (I), R represents a substituent represented by the formula (II); AO represents one member or two or more members selected from alkylene oxide units represented by -CH_(2)CH_(2)O-, -CH_(2)CH(CH_(3))O-, -CH_(2)CH_(2)CH_(2)CH_(2)O- and -CH_(2)CH(C_(2)H_(5))O-; 1 indicating the average polymerization degree of the added alkylene oxide is 0<15; the average value of m is more than 0 and 6 or less; each of the average values of n and o is from 0 to 6, the total value of m, n and o is 6, and in the formula (II), R^(2) represents a hydrogen atom or a methyl group.


Patent
Dai Ichi Kogyo Seiyaku Co. | Date: 2016-03-23

Provided is a recyclable flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition contains (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, wherein an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.


Patent
Daikin Industries Ltd, Dai Ichi Kogyo Seiyaku Co. and Osaka University | Date: 2015-01-21

The present invention aims to provide a nonionic surfactant composition capable of providing an aqueous dispersion that has excellent mechanical stability and storage stability, is less viscous at high temperatures and high concentrations, and is less likely to give off an odor during drying and firing. The present invention relates to a nonionic surfactant composition including: a nonionic surfactant that comprises a molecule having a C10-C22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C9-C14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process, wherein the nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40C in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method.


Patent
Dai Ichi Kogyo Seiyaku Co. | Date: 2015-01-22

Provided are a polylactic acid resin composition excellent in transparency, heat resistance, and migration resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 8 to 24 carbon atoms; and a fatty acid amide having a hydroxyl group.


Patent
Dai Ichi Kogyo Seiyaku Co. | Date: 2015-01-22

Provided are a polylactic acid resin composition excellent in transparency, heat resistance, and migration resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of glycerin, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a fatty acid amide having a hydroxyl group.

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