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公开(公告)号：US09920180B2
公开(公告)日：2018-03-20
申请号：US15128041
申请日：2015-03-26
发明人： Masato Akahira , Koya Kato
CPC分类号： C08K3/16 , C08K5/098 , C08K2201/014 , C08L67/02
摘要： An object is to provide a polyester resin having excellent hydrolysis resistance and good color tone and a method of producing the same. There is provided a polyester resin composition comprising a polyester resin that is prepared from a dicarboxylic acid or a dicarboxylic acid dialkyl ester and a diol as main raw material and mixed with: a copper halide; and at least one additive selected from the group consisting of compounds expressed by a formula (i) and compounds expressed by a formula (ii): MXn . . . (i) (where M denotes an alkali metal or an alkaline earth metal, X denotes at least one element selected from bromine, iodine and chlorine, and n=1 or 2); and (RCOO)nM . . . (ii) (where R denotes hydrogen or an alkyl group containing 1 to 30 carbon atoms, M denotes an alkali metal or an alkaline earth metal, and n=1 or 2).
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公开(公告)号：US10179849B2
公开(公告)日：2019-01-15
申请号：US15500989
申请日：2015-10-29
发明人： Masato Akahira , Ken Sudo , Eri Yasutake , Koya Kato
IPC分类号： C08K5/34 , C08K3/00 , C08G63/78 , C08L67/02 , C08K5/17 , C08K3/16 , C08K5/3437 , C08G63/183 , C08K5/098 , C08K5/3432
CPC分类号： C08K5/3437 , C08G63/183 , C08G63/78 , C08K3/00 , C08K3/11 , C08K3/16 , C08K3/30 , C08K5/0091 , C08K5/098 , C08K5/17 , C08K5/34 , C08K5/3432 , C08K2003/3045 , C08L67/02
摘要： A polyester resin composition having excellent hydrolysis resistance and excellent transparency and a method of producing the same are provided. There is provided a polyester resin composition comprising a polyester resin that is obtained from a dicarboxylic acid or an ester-forming derivative thereof and a diol as main raw material; and a copper-containing compound and a chelate ligand compound having a nitrogen-containing heterocyclic structure or a tertiary amine structure that are mixed with the polyester resin.
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公开(公告)号：US20230220159A1
公开(公告)日：2023-07-13
申请号：US17927327
申请日：2021-05-24
IPC分类号： C08G65/40
CPC分类号： C08G65/40 , C08G2250/00 , C08G2650/50
摘要： A crystalline polyethernitrile with a difference between a melting point and a crystallization temperature at a time of temperature-fall being 40° C. or more and 100° C. or less, the crystalline polyethernitrile includes N repeating units represented by Formula (I) and M repeating units represented by Formula (II), N and M being integers satisfying 0.90
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公开(公告)号：US11149001B2
公开(公告)日：2021-10-19
申请号：US16466230
申请日：2017-12-05
发明人： Daijiro Tsukamoto , Masateru Ito , Katsushige Yamada , Masato Akahira , Daisuke Yamamoto , Koji Yamauchi
IPC分类号： C07D201/00 , C07D223/00 , C07C255/00 , C07D201/08 , C07D223/10
摘要： A method produces ε-caprolactam through adipamide as an intermediate, and characteristically includes a lactamization step of reacting adipamide, formed from a material compound, with hydrogen and ammonia in the presence of a catalyst containing: a metal oxide mainly containing an oxide(s) of one or more metallic elements selected from the group consisting of metallic elements of group 5 and groups 7 to 14 in the 4th to 6th periods of the periodic table; and a metal and/or a metal compound having a hydrogenation ability.
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公开(公告)号：US10364218B2
公开(公告)日：2019-07-30
申请号：US15758664
申请日：2016-09-08
发明人： Daijiro Tsukamoto , Masateru Ito , Katsushige Yamada , Kohei Yamashita , Masato Akahira , Koji Yamauchi
IPC分类号： C07D201/08 , B01J23/44 , C07D223/10 , C07C59/245 , B01J21/04 , B01J21/06 , B01J21/08 , B01J21/18 , B01J23/20 , B01J23/26 , B01J23/42 , B01J23/46 , B01J23/72 , C07B61/00
摘要： A method of producing ε-caprolactam from 3-oxoadipic acid includes: step 1 of mixing at least one selected from the group consisting of 3-oxoadipic acid and salts thereof with a catalyst and a solvent in the presence of hydrogen to produce 3-hydroxyadipic acid; and step 2 of reacting the 3-hydroxyadipic acid which is a product of step 1, a salt or carboxylic acid derivative thereof, or a mixture of these with hydrogen and ammonia.
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公开(公告)号：US10196352B2
公开(公告)日：2019-02-05
申请号：US15523120
申请日：2015-10-27
发明人： Masateru Ito , Daijiro Tsukamoto , Kenji Kawamura , Kohei Yamashita , Masato Akahira , Katsushige Yamada , Koji Yamauchi
IPC分类号： C07D201/08 , C07D223/10 , B01J23/44 , C08G69/14 , C07B61/00
摘要： A method for selective production of ε-caprolactam, wherein a substance inducible from a biomass resource is used as a material; the reaction process is short; ammonium sulfate is not produced as a by-product; and production of by-products is suppressed; is disclosed. The method for producing ε-caprolactam comprises the step of reacting a particular compound inducible from a biomass resource, such as α-hydromuconic acid, 3-hydroxyadipic acid, or 3-hydroxyadipic acid-3,6-lactone, or a salt thereof with hydrogen or ammonia.
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公开(公告)号：US20180237389A1
公开(公告)日：2018-08-23
申请号：US15758664
申请日：2016-09-08
发明人： Daijiro Tsukamoto , Masateru Ito , Katsushige Yamada , Kohei Yamashita , Masato Akahira , Koji Yamauchi
IPC分类号： C07D201/08 , C07D223/10 , B01J23/20 , B01J23/26 , B01J23/42 , B01J23/44 , B01J23/46 , B01J23/72 , B01J21/04 , B01J21/06 , B01J21/08 , B01J21/18
CPC分类号： C07D201/08 , B01J21/04 , B01J21/063 , B01J21/066 , B01J21/08 , B01J21/18 , B01J23/20 , B01J23/26 , B01J23/42 , B01J23/44 , B01J23/464 , B01J23/466 , B01J23/468 , B01J23/72 , C07B61/00 , C07C59/245 , C07D223/10 , Y02P20/52
摘要： A method of producing ε-caprolactam from 3-oxoadipic acid includes: step 1 of mixing at least one selected from the group consisting of 3-oxoadipic acid and salts thereof with a catalyst and a solvent in the presence of hydrogen to produce 3-hydroxyadipic acid; and step 2 of reacting the 3-hydroxyadipic acid which is a product of step 1, a salt or carboxylic acid derivative thereof, or a mixture of these with hydrogen and ammonia.
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公开(公告)号：US09951203B2
公开(公告)日：2018-04-24
申请号：US15500989
申请日：2015-10-29
发明人： Masato Akahira , Ken Sudo , Eri Yasutake , Koya Kato
IPC分类号： C08K5/34 , C08K3/00 , C08G63/78 , C08L67/02 , C08K5/17 , C08K3/16 , C08K5/3437 , C08K5/098 , C08K5/3432 , C08G63/183
摘要： A polyester resin composition having excellent hydrolysis resistance and excellent transparency and a method of producing the same are provided. There is provided a polyester resin composition comprising a polyester resin that is obtained from a dicarboxylic acid or an ester-forming derivative thereof and a diol as main raw material; and a copper-containing compound and a chelate ligand compound having a nitrogen-containing heterocyclic structure or a tertiary amine structure that are mixed with the polyester resin.
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