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公开(公告)号：US20230407143A1
公开(公告)日：2023-12-21
申请号：US18240989
申请日：2023-08-31
IPC分类号： C09J7/38 , C08F220/18 , C08F2/22 , C08F212/08 , G03G9/08 , G03G9/087
CPC分类号： C09J7/38 , C08F220/1804 , C08F220/1808 , C08F2/22 , C08F212/08 , G03G9/0823 , G03G9/08711 , C09J2301/312 , C09J2301/302 , C09J2425/00 , C09J2433/00
摘要： A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.
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公开(公告)号：US20220306854A1
公开(公告)日：2022-09-29
申请号：US17503500
申请日：2021-10-18
IPC分类号： C08L33/08 , C08F220/18 , C09J133/08 , G03G9/087 , C08F212/08 , C08L25/14 , C09J125/14
摘要： A method for producing a composite resin particle dispersion includes: polymerizing a (meth)acrylic acid ester compound to form a (meth)acrylic acid ester-based resin; and polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the (meth)acrylic acid ester-based resin to form composite resin particles containing a styrene-based resin and the (meth)acrylic acid ester-based resin. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.
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公开(公告)号：US20220298304A1
公开(公告)日：2022-09-22
申请号：US17381854
申请日：2021-07-21
摘要： A polyimide precursor solution contains a polyimide precursor having a weight average molecular weight of 40,000 or more, and an aqueous solvent containing a tertiary amine compound and water, in which a viscosity of the polyimide precursor solution after a storage at 25° C. for 14 days is 50% or more and 200% or less with respect to a viscosity of the polyimide precursor solution before the storage.
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公开(公告)号：US20220069413A1
公开(公告)日：2022-03-03
申请号：US17137876
申请日：2020-12-30
发明人： Kosuke NAKADA , Yasunobu KASHIMA , Kosaku YOSHIMURA , Tomoya SASAKI , Hajime SUGAHARA , Tomoyo OKUBO , Hidekazu HIROSE
IPC分类号： H01M50/423 , H01M50/429 , H01M50/403 , H01M50/46 , H01M50/491 , H01M50/494 , H01M50/449
摘要： A separator for a non-aqueous secondary battery includes: a polyimide porous film; and adhesive resin particles that are attached to a surface of the polyimide porous film and have a responsiveness to at least one of pressure and heat.
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公开(公告)号：US20220064379A1
公开(公告)日：2022-03-03
申请号：US17146436
申请日：2021-01-11
发明人： Hajime SUGAHARA , Hidekazu HIROSE , Kosaku YOSHIMURA , Tomoya SASAKI , Yasunobu KASHIMA , Kosuke NAKADA , Tomoyo OKUBO
摘要： A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.
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公开(公告)号：US20220306852A1
公开(公告)日：2022-09-29
申请号：US17503529
申请日：2021-10-18
IPC分类号： C08L25/14 , C08F212/08 , C09J125/14 , G03G9/087
摘要： A method for producing a liquid dispersion of composite resin particles includes polymerizing a styrene compound and an extra vinyl monomer together to give a styrene resin; polymerizing a (meth)acrylate compound in the presence of the styrene resin to give intermediate resin particles A, which are resin particles containing the styrene resin and a (meth)acrylate resin; polymerizing a styrene compound and an extra vinyl monomer in the presence of intermediate resin particles A to give liquid dispersion B, which is a liquid dispersion containing intermediate resin particles B; and adding a polymerization initiator to liquid dispersion B to give a liquid dispersion containing composite resin particles. In the composite resin particles as a whole, the ratio by mass between the styrene and (meth)acrylate resins is between 80:20 and 20:80. There is a difference of 30° C. or more between the lowest and highest glass transition temperatures of the composite resin particles.
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公开(公告)号：US20230079844A1
公开(公告)日：2023-03-16
申请号：US17577358
申请日：2022-01-17
IPC分类号： C08G73/10 , B29C67/20 , H01M50/414 , H01M50/403 , H01M50/491
摘要： A polyimide precursor solution includes a polyimide precursor having a glass transition temperature Tg of equal to or higher than 300° C. after imidization, an aqueous solvent containing water, an organic amine compound, and resin particles having a volume average particle size of equal to or less than 100 nm.
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8.发明申请公开(公告)号：US20220306805A1
公开(公告)日：2022-09-29
申请号：US17374425
申请日：2021-07-13
摘要： A polyimide precursor-containing aqueous composition contains a polyimide precursor, resin particles having a polyalkylene oxide group, and a solvent containing water and an aprotic polar solvent.
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公开(公告)号：US20220119596A1
公开(公告)日：2022-04-21
申请号：US17380016
申请日：2021-07-20
发明人： Tomoya SASAKI , Hidekazu HIROSE , Kosaku YOSHIMURA , Yasunobu KASHIMA , Hajime SUGAHARA , Kosuke NAKADA , Tomoyo OKUBO
摘要： A particle-dispersed polyimide precursor solution contains a polyimide precursor having a unit represented by the following formula (I), particles, and a solvent, in which the particle-dispersed polyimide precursor solution satisfies both the following conditions (1) and (2), (in the formula (I), A represents a tetravalent organic group, and B represents a divalent organic group represented by any of the following formulas (B1) to (B4)), (in the formulas (B1) to (B4), Ar1, Ar10, and Ar11 each independently represent a trivalent aromatic group which may have a substituent, Ar2, Ar4, Ar5, Ar7 and Ar8 each independently represent a divalent aromatic group which may have a substituent, Ar3 and Ar6 each independently represent a tetravalent aromatic group which may have a substituent or a group represented by the following formula (II), Ar9 represents a divalent aromatic group which may have a substituent or a group represented by the following formula (III), X1 to X7 each independently represent NRa, O, or S, Ra represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group, and * represents a bonding site with an adjacent linking group), and (in the formulas (II) and (III), Ar12 and Ar13 each independently represent a trivalent aromatic group which may have a substituent, Ar14 and Ar15 each independently represent a divalent aromatic group which may have a substituent, Y and Z each independently represent O, S, S(═O)2, or CRbRc, Rb and Rc each independently represent a hydrogen atom, an alkyl group which may have a substituent, or an aryl group, and * represents a bonding site with an adjacent linking group), Condition (1): a total content of the groups represented by the formulas (B1) to (B4) is 1% by mass or more and 40% by mass or less with respect to a total amount of the polyimide precursor, and
Condition (2): a content of the particles is 5% by mass or more and 90% by mass or less with respect to a total content of the polyimide precursor and the particles.
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