公开(公告)号：US20230150967A1

公开(公告)日：2023-05-18

申请号：US17798637

申请日：2021-02-08

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： Seiya ASHIBE ,  Hirotake MORIYAMA

IPC分类号： C07D327/00

CPC分类号： C07D327/00

摘要： Provided is an industrially advantageous method for producing a methylene disulfonate compound easily and inexpensively using fewer raw materials. The method for producing a methylene disulfonate compound of the present invention comprises step A of reacting at least one alkanesulfonic acid compound and sulfur trioxide in the presence of at least one member selected from the group consisting of a sulfoxide compound and a sulfone compound to thereby obtain reactant A comprising an alkanedisulfonic acid compound, and step B of reacting reactant A obtained in step A and a formaldehyde compound in the presence of sulfur trioxide to thereby obtain a methylene disulfonate compound.

公开(公告)号：US20180195816A1

公开(公告)日：2018-07-12

申请号：US15742800

申请日：2016-07-01

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD. ,  CHIYODA INTEGRE CO., LTD.

发明人： Hirotake MORIYAMA ,  Akihiro HAYASHI

IPC分类号： F28F13/18 ,  F28F3/02 ,  H05K7/20

CPC分类号： F28F13/18 ,  F28F3/025 ,  F28F2245/06 ,  H01L23/36 ,  H01L33/641 ,  H01L33/642 ,  H05K7/20 ,  H05K7/2039

摘要： [Problem] To provide a heat sink that is lightweight, easy to be worked, and has a good cooling capability.[Solution] A heat sink X1 of the present invention includes a quasi-tubular shell 1 that is attached to a cooling target O1 and formed by a heat dissipating sheet. The heat dissipating sheet has a heat transfer layer 1A and a heat radiation layer 1B laminated on the heat transfer layer 1A. The heat radiation layer 1B constitutes at least a portion of an outer surface of the shell 1 located away from the cooling target O1.

公开(公告)号：US20230090751A1

公开(公告)日：2023-03-23

申请号：US17798954

申请日：2021-02-08

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： Hirotake MORIYAMA ,  Yusaku MASUHARA

IPC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 at least one complex having a Lewis base and sulfur trioxide to thereby obtain an alkanedisulfonic acid compound. According to the production method of the present invention, it is possible to produce an alkanedisulfonic acid compound easily and inexpensively with a high yield, which is industrially advantageous.

公开(公告)号：US20220251060A1

公开(公告)日：2022-08-11

申请号：US17629186

申请日：2020-07-22

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： Seiji BANDO ,  Hirotake MORIYAMA ,  Seiya ASHIBE

IPC分类号： C07D327/10 ,  C07D327/00

摘要： Provided is a novel production method capable of easily producing a cyclic disulfonic acid ester compound. This method for producing a cyclic disulfonic acid ester compound comprises reacting a specific sulfonic acid compound with a specific sulfuric acid ester compound.