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31. 发明授权

US12030987B2 Aliphatic polycarbonate 有权
公开(公告)号：US12030987B2
公开(公告)日：2024-07-09
申请号：US17425474
申请日：2020-01-21
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD. , MURATA MANUFACTURING CO., LTD.
发明人： Kiyoshi Nishioka , Yusuke Ueba , Akemi Kirihata
IPC分类号： C08G64/02 , C08G64/40 , C09D11/102 , C09D169/00 , C09J169/00
CPC分类号： C08G64/0216 , C08G64/40 , C09D11/102 , C09D169/00 , C09J169/00
摘要： An object of this invention is to find a method for introducing a functional group into an aliphatic polycarbonate without impairing the excellent thermal decomposition property of the aliphatic polycarbonate.
An aliphatic polycarbonate comprising a constituent unit represented by formula (1):

wherein R1, R2, and R3 are identical or different, and each represents a hydrogen atom, a C1-10 alkyl group optionally substituted with one or more substituents, or a C6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R1 to R3, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring; and X represents a divalent group containing one or more heteroatoms or an alkylene group having 3 or more carbon atoms, and

a constituent unit represented by formula (2):

wherein R4, R5, R6, and R7 are identical or different, and each represents a hydrogen atom, a C1-10 alkyl group optionally substituted with one or more substituents, or a C6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R4 to R7, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring,

the content of the constituent unit represented by formula (1) being 0.1 mol % or more and 1.5 mol % or less, based on the total amount of the constituent units of formula (1) and formula (2).

32. 发明公开

US20240109054A1 METHOD FOR REGENERATING WATER-ABSORBING RESIN PARTICLES 审中-公开
公开(公告)号：US20240109054A1
公开(公告)日：2024-04-04
申请号：US17768764
申请日：2020-10-15
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Tomoe YAMAMOTO
IPC分类号： B01J20/34 , B01J20/26
CPC分类号： B01J20/3475 , B01J20/267 , B01J20/3483
摘要： Disclosed is a method for reproducing water-absorbing resin particles including: treating water-absorbing resin particles that have absorbed water with hot water; and treating the water-absorbing resin particles after the hot water treatment with a hydrophilic organic solvent.

33. 发明公开

US20230347318A1 WATER-ABSORBING RESIN COMPOSITION, ABSORBENT, AND ABSORPTIVE ARTICLE 审中-公开
公开(公告)号：US20230347318A1
公开(公告)日：2023-11-02
申请号：US18006065
申请日：2021-07-15
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Tomoe YAMAMOTO
IPC分类号： B01J20/26 , B01J20/28 , A61L15/24
CPC分类号： B01J20/267 , B01J20/28004 , B01J20/28016 , A61L15/24
摘要： Provided is a water-absorbing resin composition that is capable of achieving both high liquid diffusion and liquid leakage prevention in an absorbent. The present invention provides a water-absorbing resin composition, wherein: an electromotive force P(mV) of a first-washing washing liquid, obtained as a result of washing the water-absorbing resin composition by means of the washing method indicated below, is equal to or greater than 80 V; and the difference (P−Q) between the electromotive force P(mV) and an electromotive force Q(mV) of a second-washing washing liquid, obtained as a result of washing the water-absorbing resin composition by means of the washing method indicated below, is equal to or greater than 10 mV. (Washing method) A container in which a sieve having a mesh size of 36 μm is attached to the bottom of a cylinder having an inner diameter of 60 mm is prepared. 1 g of the water-absorbing resin composition is evenly dispersed on the sieve in the container. A 200 mL beaker is placed under the sieve. 200 g of a physiological saline solution is rapidly introduced from above the water-absorbing resin composition and the physiological saline solution that has flowed down into the beaker is used as the first-washing washing liquid. Next, a new 200 mL beaker is placed under the sieve. An additional 200 g of the physiological saline solution is rapidly introduced from above the water-absorbing resin composition and the physiological saline solution that has flowed down into the beaker is used as the second-washing washing liquid.

34. 发明公开

US20230323112A1 COMPOSITION CONTAINING POLYESTER RESIN 审中-公开
公开(公告)号：US20230323112A1
公开(公告)日：2023-10-12
申请号：US18016186
申请日：2021-07-13
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Ikumi KAKUTAKA , Naoki HASHIMOTO
IPC分类号： C08K5/37 , C08L67/02
CPC分类号： C08L67/02 , C08K5/37 , C08L2201/54
摘要： Provided is an aqueous polyester resin dispersion composition that maintains high rot-proofness and adhesiveness over a long period of time. More specifically, provided is an aqueous polyester resin dispersion composition containing pyrithione or a salt thereof.

35. 发明公开

US20230312838A1 POLYESTER RESIN AQUEOUS DISPERSION COMPOSITION AND METHOD FOR PRODUCING SAME 审中-公开
公开(公告)号：US20230312838A1
公开(公告)日：2023-10-05
申请号：US18016132
申请日：2021-07-13
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Ikumi KAKUTAKA , Naoki HASHIMOTO
IPC分类号： C08J3/07 , C08L67/02
CPC分类号： C08J3/07 , C08L67/02 , C08J2367/02 , C08J2429/04 , C08L2201/54
摘要： Provided is a method for efficiently producing an aqueous polyester resin dispersion composition in an excellent emulsification state with excellent adhesiveness. More specifically, provided is a method for producing an aqueous polyester resin dispersion composition, including mixing a melt-kneaded material of polyester and polyvinyl alcohol further with an aqueous solution of 3 to 10 mass% polyvinyl alcohol such that the total content of the polyester and the polyvinyl alcohol in the obtained mixture is 78 to 88 mass%.

36. 发明公开

US20230257561A1 RESIN DISPERSION COMPOSITION 审中-公开
公开(公告)号：US20230257561A1
公开(公告)日：2023-08-17
申请号：US18005489
申请日：2021-07-13
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Masafumi OKAMOTO , Toshiaki FUJIWARA , Toshinari MIZUHASHI
IPC分类号： C08L23/08 , C09D123/08 , D21H19/12
CPC分类号： C08L23/0869 , C09D123/0869 , D21H19/12 , C08L2201/54
摘要： An aqueous dispersion composition includes in a stably dispersed state a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit. The composition has a relatively high content of the copolymer and a relatively low viscosity. A production method for the aqueous dispersion composition is also provided. The method is for producing an aqueous dispersion composition of a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit. The method includes the steps of (1) mixing a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit, a basic substance, and water such that the concentration of the copolymer is 40 to 62 mass%, and that the copolymer is neutralized to a degree of neutralization of 10 to 35%, (2) applying a pressure of 0.1 to 2 MPa to the obtained mixture, and (3) further adding water after the pressure application to adjust the concentration of the copolymer to 30 to 60 mass%.

37. 发明公开

US20230159443A1 METHOD FOR PRODUCING ALKANEDISULFONIC ACID COMPOUND 审中-公开
公开(公告)号：US20230159443A1
公开(公告)日：2023-05-25
申请号：US17799156
申请日：2021-02-08
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Yusaku MASUHARA , Seiya ASHIBE
IPC分类号： C07C303/06
CPC分类号： C07C303/06
摘要： Provided is an industrially advantageous method for producing an alkanedisulfonic acid compound easily and inexpensively with a high yield. The present invention is a method for producing an alkanedisulfonic acid compound, comprising reacting at least one alkanesulfonic acid compound having a specific structure and sulfur trioxide in the presence of at least one member selected from the group consisting of a sulfoxide compound and sulfone compound having a specific structure to thereby obtain an alkanedisulfonic acid compound.

38. 发明授权

US11576929B2 Composition for inflammatory gastrointestinal disorders 有权
公开(公告)号：US11576929B2
公开(公告)日：2023-02-14
申请号：US16972304
申请日：2019-05-16
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD. , KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION
发明人： Tomohisa Takagi , Yuji Naito , Katsura Miura , Shigeki Sakaue
IPC分类号： A61K33/00 , A61K9/00 , A61K9/08 , A61K47/14 , A61P1/04
摘要： This invention provides a more efficient means for treating inflammatory gastrointestinal diseases using CO. More specifically, the invention provides a composition for preventing and/or treating inflammatory gastrointestinal diseases, the composition comprising carbon monoxide and a solvent, the CO concentration being 800 μM or more.

39. 发明申请

US20230002565A1 COATED RESIN PARTICLES AND METHOD FOR PRODUCING COATED RESIN PARTICLES 有权
公开(公告)号：US20230002565A1
公开(公告)日：2023-01-05
申请号：US17757135
申请日：2020-12-09
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Hiroki SAWAKI , Chiho ONITA
IPC分类号： C08J3/12 , C08F120/06 , C08F2/08 , C08G65/08 , B01J20/26 , B01J20/28
摘要： One aspect of the present invention relates to a coated resin particle including: a water-absorbent resin particle; and a coating layer that coats at least a part of a surface of the water-absorbent resin particle, in which the coating layer contains a water-soluble component in which a solubility in 100 g of water is in a range of 1.0 g or more and 150 g or less at 25° C.

40. 发明申请

US20220314199A1 METHOD FOR INCREASING AMOUNT OF WATER ABSORBED UNDER LOAD BY WATER ABSORBENT RESIN PARTICLES, AND METHOD FOR PRODUCING WATER ABSORBENT RESIN PARTICLES 有权
公开(公告)号：US20220314199A1
公开(公告)日：2022-10-06
申请号：US17597324
申请日：2020-07-01
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Moe NISHIDA
IPC分类号： B01J20/34 , B01J20/26 , B01J20/28
摘要： Disclosed is a method for improving a water absorption amount under load by water absorbent resin particles, the method including shaking a powder containing a plurality of water absorbent resin particles contained in a container. An amount of powder corresponding to a theoretical filling rate of less than 100% may be contained in the container.

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