283 patents
Page 9 of 15
Utility
Method for producing methacrylic acid ester
30 Nov 20
Provided is a method for producing a methacrylic acid ester using a biocatalyst, said method comprising a step for treating methacrylyl-CoA with an alcohol or phenol in the presence of an alcohol acyltransferase to synthesize the methacrylic acid ester.
Eiji Sato, Fujio Yu, Wataru Mizunashi, Eiji Nakajima
Filed: 9 Sep 13
Utility
Carbon-fiber-reinforced thermoplastic-resin composite material and molded body using the same
23 Nov 20
The invention is intended to obtain a composite material suitable for mass production or the like by shortening the molding time while obtaining the advantages of the composite materials described above, and intended to provide a composite material which has a short molding time by the use of a thermoplastic resin as a matrix and is excellent in balance among stiffness, strength, and thermal conductivity.
Osamu Okunaka
Filed: 5 Mar 14
Utility
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23 Nov 20
A liquid chemical agent package includes: a package bag obtained by bonding water-soluble films each containing a polyvinyl alcohol resin (A) to each other; and a liquid chemical agent included in the package bag, wherein in a section in a vertical direction relative to bonding surfaces of the water-soluble films, the liquid chemical agent package contains 20 or more inorganic particles each having a particle diameter of 2 μm or more in a sealed sectional portion having a range extending from an interface between the bonding surfaces by ±10 μm in the vertical direction and having a width of 900 μm.
Takahiro Hiura
Filed: 20 Jun 19
Utility
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23 Nov 20
The present invention relates to a method for producing furfural, including: obtaining a sugar solution containing at least one of a monosaccharide having 5 carbon atoms and a polysaccharide containing the monosaccharide having 5 carbon atoms by carrying out a reaction with a specific resource as a raw material in the presence of a catalyst in a solvent; converting at least one of the monosaccharide and the polysaccharide containing the monosaccharide in the sugar solution into furfural by a dehydration reaction, so as to obtain a reaction solution; and separating the reaction solution into an organic layer and an aqueous layer, wherein an aromatic hydrocarbon solvent having a density of from 0.90 g/cm3 to 1.1 g/cm3 at 25° C. and under atmospheric pressure is used, and wherein the reaction solution is separated at a temperature higher than 90° C. and lower than 150° C.
Yusuke Izawa, Yosuke Suzuki, Masaru Utsunomiya
Filed: 23 Sep 18
Utility
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16 Nov 20
The present invention aims to improve the production capacity of alcohol in a method of producing high concentration alcohol using a distillation column and an adsorption-desorption column.
Tadafumi Yamamura, Hideto Hidaka, Hiroyuki Kakiuchi
Filed: 28 Jul 19
Utility
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16 Nov 20
Provided are carbon fiber bundles which have high knot strength even if the single fiber fineness is large, and which have excellent handling properties and processability.
Takayuki Kiriyama, Naoki Sugiura, Masahiro Hata
Filed: 17 Apr 13
Utility
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9 Nov 20
The present invention provides a plastic optical fiber comprising a core and a sheath consisting of at least one layer, the plastic optical fiber having a transmission loss of 120 dB/km or less as measured by a 25 m-1 m cutback method under conditions of a wavelength of 525 nm and an excitation of NA=0.45, and satisfying either one of the following conditions when a thickness of the innermost sheath layer is 0.5 μm to 4.5 μm, an amount of foreign matter having a size of 2 μm or greater contained in the innermost sheath layer is 2000/cm3 or less, or a size X (μm) of foreign matter contained in the innermost sheath layer and an amount Y of the foreign matter (number/cm3) satisfy formula (1) below: Y≤1200 X e(−0.067×X) (1).
Hideki Kihara, Yoshihiro Tsukamoto
Filed: 18 Oct 15
Utility
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26 Oct 20
A packaging bag for packaging a melt-processable polyvinyl alcohol resin is formed from a film having a methanol vapor transmission rate of 0.5 to 1000 g/m2·day.
Yoshihito Yamauchi, Norihito Sakai
Filed: 6 Dec 16
Utility
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26 Oct 20
There is provided a polyester resin including a 2,5-furandicarboxylic acid unit and a cyclohexanedimethanol unit in a main chain, in which the polyester resin is high in molecular weight, has heat resistance and hydrolysis resistance, and is excellent in mechanical properties and melt heat stability.
Rie Shirahama, Tatsuya Hitomi, Atsushi Kasai
Filed: 4 Mar 18
Utility
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19 Oct 20
A laminate shaping support material is provided which includes one of: a resin composition containing a polyvinyl alcohol resin having a primary hydroxyl group at its side chain, and having a heat of fusion of 10 to 30 J/g at its melting point (Embodiment (X)); and a resin composition containing a polyvinyl alcohol resin, and a block copolymer including a polymer block of an aromatic vinyl compound, at least one of a polymer block of a conjugated diene compound and a block of a hydrogenated conjugated diene compound, and a functional group reactive with a hydroxyl group (Embodiment (Y)).
Norihito Sakai, Shusaku Mandai
Filed: 24 Jul 19
Utility
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19 Oct 20
According to the present invention, in separating carbon dioxide by a membrane separation with a separation membrane system using an inorganic separation membrane from a mixed gas containing methane and carbon dioxide, and then by an acid gas removal process using an absorbent, by specifying the suitable range of the carbon dioxide mole fraction at the outlet on the carbon dioxide non-permeation side XCO2 in the membrane separation, which corresponds to an ideal separation factor of the inorganic separation membrane, the proper distribution conditions become feasible.
Kenichi Kawazuishi, Masayuki Iwamura
Filed: 29 Apr 18
Utility
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12 Oct 20
An aqueous resin dispersion wherein a polymer (C) obtained by bonding a polyolefin (A) to a polyether resin (B) is dispersed in water; and the polyether resin (B) contains a polyether resin (B1) having an HLB of less than 8 and a polyether resin (B2) having an HLB of 8 to 20 according to calculation by the Griffin method.
Akira Harada
Filed: 29 Jan 17
Utility
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12 Oct 20
The present invention relates to: a resin composition comprising a polyacetal resin (A), a salt (B) consisting of a carboxylic acid and an alkaline-earth metal, and a rubber-containing graft polymer (C); and a molded article formed by molding the resin composition.
Shinji Matsuoka, Saki Fujita
Filed: 22 Feb 16
Utility
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5 Oct 20
Yoshiyuki Tanaka
Filed: 18 Feb 20
Utility
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5 Oct 20
Takeshi Nakamura, Yoshie Takami, Tomoko Maeda, Naoko Sumitani, Hiroki Shibata, Toshiki Monden
Filed: 12 Mar 19
Utility
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5 Oct 20
Provided is a macromonomer copolymer (Y) including a monomer unit of a specific macromonomer (A) and a monomer unit of a comonomer (B) copolymerizable with the macromonomer (A), in which a value of Hx represented by a specific expression is 0.05 to 0.40.
Go Otani, Taeko Oonuma, Yoshiko Irie
Filed: 13 Nov 18
Utility
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5 Oct 20
A conductive C-plane GaN substrate has a resistivity of 2×10−2 Ω·cm or less or an n-type carrier concentration of 1×1018 cm−3 or more at room temperature.
Yutaka Mikawa, Hideo Fujisawa, Tae Mochizuki, Hideo Namita, Shinichiro Kawabata
Filed: 6 Feb 19
Utility
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28 Sep 20
This vinyl polymer powder, which contains a vinyl polymer, has a glass transition temperature of at least 0° C. (where if there are a plurality of glass transition points, all of the glass transition temperatures are at least 0° C.), has no greater than 350 ppm of the total content of magnesium ions, calcium ions, aluminum ions, barium ions, and zinc ions, has no greater than 100 ppm of the content of ammonium ions, has an acid number of no greater than 2.5 mgKOH/g, and has a bulk density of 0.10-0.60 g/cm3.
Masahiro Ueda, Shinji Matsuoka
Filed: 15 Jan 19
Utility
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28 Sep 20
The present invention provides a high-molecular-weight polyether polyol ensuring that when used as a polyurethane raw material, a polyurethane having excellent flexibility and elastic recovery can be obtained; and a method for producing, with high productivity, a polyether polyol having a higher number average molecular weight and a narrower molecular weight distribution than those of the raw material polyether polyol, and the polyether polyol of the present invention has a number average molecular weight of 3,500 to 5,500 and a molecular weight distribution of 1.7 to 3.0.
Takanori Taniguchi, Yoko Nakagawa, Ryo Yamashita, Nobuyuki Kobayashi
Filed: 17 May 17
Utility
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21 Sep 20
The present invention pertains to a carbon fiber reinforced plastic, and provides a carbon fiber reinforced plastic laminated body that is low cost and superior in moldability, mechanical characteristic balance, and impact resistance.
Masahiko Nagasaka, Takeshi Ishikawa, Hayato Ogasawara
Filed: 31 Mar 16