公开(公告)号：EP3950831A1

公开(公告)日：2022-02-09

申请号：EP20782309.7

申请日：2020-03-23

申请人： Mitsui Chemicals, Inc.

发明人： KAGAWA, Yasuyuki ,  UENARI, Takahiro ,  YOSHIMURA, Toshihiro

IPC分类号： C08L33/06 ,  C08L33/26 ,  H01M2/16

摘要： A ingredient for a secondary cell separator coating material includes a first polymer obtained by polymerizing a first monomer component containing an alkyl (meth)acrylate and a vinyl monomer having a carbon ring structure, and a second polymer obtained by polymerizing a second monomer component containing a (meth)acrylamide.

公开(公告)号：EP4137306A1

公开(公告)日：2023-02-22

申请号：EP21788754.6

申请日：2021-04-09

申请人： Mitsui Chemicals, Inc.

发明人： TOMITA, Yoshihiko ,  MATSUMOTO, Tsuyoshi ,  KAGAWA, Yasuyuki ,  YOSHIMURA, Toshihiro

IPC分类号： B32B5/18 ,  C08F220/56 ,  H01M50/42 ,  H01M50/434 ,  H01M50/443 ,  H01M50/451

摘要： In an ingredient for a secondary cell separator coating material including a water-soluble polymer having a repeating unit derived from methacrylamide and a repeating unit derived from a carboxy group-containing vinyl monomer, a content ratio of the repeating unit derived from the methacrylamide is 60% by mass or more and 97% by mass or less, and a content ratio of the repeating unit derived from the carboxy group-containing vinyl monomer is 3% by mass or more and 40% by mass or less with respect to the total amount of the water-soluble polymer; a weight average molecular weight of the water-soluble polymer is 20000 or more and 200000 or less; and a glass transition temperature of the water-soluble polymer is 200°C or more.

公开(公告)号：EP4394003A1

公开(公告)日：2024-07-03

申请号：EP22861185.1

申请日：2022-08-16

申请人： Mitsui Chemicals, Inc.

发明人： KAGAWA, Yasuyuki ,  SEO, Akiko

IPC分类号： C09D5/00 ,  C09D157/12 ,  D21H19/20

CPC分类号： C09D157/12 ,  D21H19/20 ,  C09D5/00

摘要： A mineral-oil-resistance-imparting coating material includes a copolymer of a monomer composition and an aqueous solvent in which the copolymer is dissolved and/or dispersed. The monomer composition contains a nitrile-group-containing unsaturated ethylenic monomer and a carboxy-group-containing unsaturated ethylenic monomer. To the total amount of the monomer composition, the content ratio of the nitrile-group-containing unsaturated ethylenic monomer is 21% by mass or more and 70% by mass or less. To the total amount of the monomer composition, the content ratio of the carboxy-group-containing unsaturated ethylenic monomer is 3% by mass or more and 10% by mass or less.

公开(公告)号：EP4137307A1

公开(公告)日：2023-02-22

申请号：EP21788849.4

申请日：2021-04-09

申请人： Mitsui Chemicals, Inc.

发明人： TOMITA, Yoshihiko ,  MATSUMOTO, Tsuyoshi ,  KAGAWA, Yasuyuki ,  YOSHIMURA, Toshihiro

IPC分类号： B32B5/18 ,  C08F265/04 ,  H01M50/403 ,  H01M50/42 ,  H01M50/423 ,  H01M50/434 ,  H01M50/443

摘要： In an ingredient for a secondary cell separator coating material including a core shell particle including a core layer containing a first polymer and a shell layer covering the first polymer and including a second polymer, the first polymer has a repeating unit derived from alkyl (meth)acrylate; the second polymer has a repeating unit derived from (meth)acrylamide of 40 to 97% by mass, and a repeating unit derived from a carboxy group-containing vinyl monomer of 3 to 60% by mass; and a ratio of the second polymer to the first polymer is 4 to 250.