公开(公告)号：US12129337B2

公开(公告)日：2024-10-29

申请号：US17297854

申请日：2020-02-10

申请人： LG CHEM, LTD.

发明人： Jinyoung Park ,  Chan Hyo Park ,  Danbi Choi

IPC分类号： C08J5/18 ,  C08G73/10 ,  C08L79/08

CPC分类号： C08G73/101 ,  C08G73/1067 ,  C08J5/18 ,  C08L79/08 ,  C08L2201/08 ,  C08L2203/16 ,  C08L2203/20

摘要： The present invention relates to a polyimide precursor composition, and a polyimide film manufactured using same. According to the present invention, since a polyimide film is manufactured from a mixture of a polyimide precursor having a structure that is advantageous to surface charge accumulation and a polyimide precursor having a structure capable of exhibiting high heat-resistant characteristics, a flexible device using the polyimide film as a substrate can have both improved charge accumulation characteristics caused by an electric field to be generated during the operation of a TFT device and heat high heat-resistant characteristics.

公开(公告)号：US20190211153A1

公开(公告)日：2019-07-11

申请号：US16236717

申请日：2018-12-31

申请人： SABIC GLOBAL TECHNOLOGIES B.V.

发明人： Roy Ray ODLE ,  Ke CAO ,  Guoliang LIU ,  Timothy Edward LONG ,  Joseph Michael DENNIS ,  Ryan J. MONDSCHEIN

IPC分类号： C08G73/10 ,  C08L79/08

CPC分类号： C08G73/1071 ,  C08G73/1007 ,  C08G73/101 ,  C08G73/1046 ,  C08L79/08

摘要： A polyimide oligomer of the formula wherein G is a group having a valence of t, each R is independently a C1-30 divalent bridging group, a C1-20 alkylene-X, or a C6-30 arylene-X wherein —X is —O-M′, —C(O)O-M′, —OC(O)O-M′, —S-M′, —S(O)2-M′, —S(O)3-M′, —OS(O)3-M′, or —OP(O)3-M′ wherein each M′ is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, or Sb, provided that at least one R is C1-20 alkylene-X or C6-30 arylene-X, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 1 to 6, and each n is independently 1 to 1,000, the total of all values of n is greater than 4, the polyimide oligomer is thermoplastic, and Q, M, D, and V are as provided herein.

公开(公告)号：US20180201805A1

公开(公告)日：2018-07-19

申请号：US15689166

申请日：2017-08-29

申请人： Zhen Ding Technology Co., Ltd.

发明人： MING-JAAN HO ,  MAO-FENG HSU ,  SHOU-JUI HSIANG ,  NAN-KUN HUANG ,  YU-WEN KAO ,  CHIA-YIN TENG ,  CHING-HSUAN LIN

IPC分类号： C09D179/08 ,  C08L63/00 ,  C08G73/10

CPC分类号： C09D179/08 ,  C08G73/101 ,  C08G73/1028 ,  C08G73/1032 ,  C08G73/1039 ,  C08G73/1053 ,  C08G73/1064 ,  C08G73/1067 ,  C08G73/1071 ,  C08L63/00 ,  C08L2203/202 ,  C08K7/22

摘要： A resin composition comprises a modified polyimide compound, an epoxy resin, and a solvent. The modified polyimide compound has a chemical structural formula of the Ar′ represents a group selected from a group consisting of phenyl having a chemical structural formula of diphenyl ether having a chemical structural formula of biphenyl having a chemical structural formula hexafluoro-2,2-diphenylpropane having a chemical structural formula of benzophenone having a chemical structural formula of and diphenyl sulfone having a chemical structural formula of and any combination thereof, the epoxy resin and the modified polyimide compound are in a molar ratio of about 0.1:1 to about 1:1. A polyimide film and a method for manufacturing the polyimide film using the resin composition are also provided.

公开(公告)号：US20180155498A1

公开(公告)日：2018-06-07

申请号：US15883726

申请日：2018-01-30

申请人： Rhodia Operations

发明人： Stéphane Jeol

IPC分类号： C08G73/10 ,  C08G73/00 ,  C07C69/76 ,  C07C211/63 ,  D01F6/74 ,  C08L79/08 ,  C08J5/00

CPC分类号： C08G73/1082 ,  C07C69/76 ,  C07C211/63 ,  C08G73/00 ,  C08G73/1007 ,  C08G73/101 ,  C08G73/1028 ,  C08G73/1075 ,  C08J5/00 ,  C08J2379/08 ,  C08L79/08 ,  D01F6/74 ,  Y10T428/2982 ,  Y10T442/30 ,  Y10T442/40

摘要： A salt composition includes at least one ammonium carboxylate salt obtained from: (a) at least one aromatic compound comprising 2 anhydride functional groups and/or its carboxylic acid and/or ester derivatives; and (b) one or more aliphatic diamines in which said aliphatic diamine or diamines are chosen from the diamines of formula (I) NH2—R—NH2 with R being a saturated aliphatic divalent hydrocarbon radical, the two amine functional groups of which are separated by 4 to 6 carbon atoms and 1 or 2 hydrogen atoms of the divalent radical of which are replaced by 1 or 2 methyl and/or ethyl groups; and optionally the diamines of formula (II) NH2—R′—NH2 with R′ being a saturated or unsaturated and aliphatic, cycloaliphatic or arylaliphatic divalent hydrocarbon radical, which optionally comprises heteroatoms; and at least one chain-limiting compound chosen from monoamines, monoacids or diacids in the α,β positions.

公开(公告)号：US20180148544A1

公开(公告)日：2018-05-31

申请号：US15825326

申请日：2017-11-29

申请人： ETERNAL MATERIALS CO., LTD.

发明人： Chang-Hong HO ,  Chung-Jen WU ,  Meng-Yen CHOU ,  Shun-Jen CHIANG ,  Po-Yu HUANG ,  Chung-Kai CHENG

IPC分类号： C08G73/14 ,  C08G69/44 ,  C08G81/02

CPC分类号： C08G73/14 ,  C08G69/44 ,  C08G73/101 ,  C08G73/1067 ,  C08G81/028 ,  C08K5/095

摘要： The present invention provides an amic acid ester oligomer having a structure of Formula (1) or (1′): wherein G, P, R, Rx, D, E and m are as defined in the specification. The present invention also provides a polyimide precursor composition comprising the amic acid ester oligomer, as well as a polyimide prepared from the composition.

公开(公告)号：US20180141008A1

公开(公告)日：2018-05-24

申请号：US15567956

申请日：2015-04-20

申请人： NGEE ANN POLYTECHNIC

发明人： James Antony Prince ,  Sowrirajalu Bhuvana ,  Anbharasi Vanangamudi ,  Gurdev Singh

IPC分类号： B01D67/00 ,  B01D71/02 ,  C08G73/14 ,  C08G73/10

CPC分类号： B01D67/0079 ,  B01D67/00 ,  B01D69/148 ,  B01D71/021 ,  B01D71/40 ,  B01D71/42 ,  B01D71/60 ,  B01D71/68 ,  B01D71/76 ,  B01D71/78 ,  B01D2323/38 ,  B01D2325/36 ,  C08F8/12 ,  C08F8/32 ,  C08F8/48 ,  C08F220/44 ,  C08F222/06 ,  C08F2800/10 ,  C08F2810/20 ,  C08G73/101 ,  C08G73/1075 ,  C08G73/14 ,  C08L33/24 ,  C08L73/02

摘要： A graphene-based membrane and a method of producing the same are disclosed. The graphene-based membrane may include a graphene-polymer composite, wherein the graphene-polymer composite may consist of an amine functionalized graphene and a polymer containing an anhydride group as a linker for linking the amine functionalized graphene to the polymer. The graphene-based membrane may be constructed of a single-layer. A method may include reacting a polymer containing an anhydride with an amine functionalized graphene in presence of a solvent to form an intermediate product; and thermal imidizing the intermediate product to form a graphene grafted polymer composite for use in fabricating a graphene-based membrane.

公开(公告)号：US20170152399A1

公开(公告)日：2017-06-01

申请号：US15310292

申请日：2015-04-20

申请人： Kaneka Corporation ,  Japan Aerospace Exploration Agency

发明人： Masahiko Miyauchi ,  Yuichi Ishida ,  Toshio Ogasawara ,  Rikio Yokota

IPC分类号： C09D179/08 ,  C08J5/18 ,  C08J5/24 ,  C08G73/10

CPC分类号： C09D179/08 ,  C08G73/10 ,  C08G73/101 ,  C08G73/1032 ,  C08G73/105 ,  C08G73/1071 ,  C08J5/18 ,  C08J5/24 ,  C08J2379/08

摘要： Provided is a varnish including 1 to 500 parts by weight of an aromatic tetracarboxylic acid diester (A) represented by General Formula (1), 1 to 450 parts by weight of 2-phenyl-4,4′-diaminodiphenyl ether (B), 1 to 100 parts by weight of a 4-(2-phenylethynyl)phthalic acid monoester (C) represented by General Formula (2), and 100 parts by weight of an organic solvent having a boiling point of 150° C. or less at 1 atmosphere or a mixture of two or more of the organic solvents (D). The components (A), (B), and (C) are dissolved in the varnish. (In the formula, R1 is an aromatic tetracarboxylic acid diester residue; R2 and R3 are the same or different and are an aliphatic organic group or an aromatic organic group.) (In the formula, R4 and R5 are a hydrogen atom, an aliphatic organic group, or an aromatic organic group.)

公开(公告)号：US09447240B2

公开(公告)日：2016-09-20

申请号：US14114409

申请日：2012-04-27

申请人： Hideo Suzuki ,  Takahiro Noda

发明人： Hideo Suzuki ,  Takahiro Noda

IPC分类号： G02F1/1337 ,  B32B27/28 ,  C08G73/10 ,  C07D301/03 ,  C07D303/12 ,  C07D307/00 ,  C07D493/18 ,  C07D493/22

CPC分类号： C08G73/10 ,  C07D493/18 ,  C07D493/22 ,  C08G73/101 ,  C08G73/1014 ,  G02F1/133723

摘要： To provide a polyimide precursor and/or polyimide which has an excellent solubility in various organic solvents, and with which a liquid crystal alignment film can be obtained which is excellent in a rubbing resistance and which is hardly deteriorated even by irradiation with backlight.A polyimide precursor having its terminal amino group modified with at least one alicyclic epoxydicarboxylic acid anhydride selected from the group consisting of compounds of the formulae [1] and [2], or a polyimide obtained by imidizing it: wherein Y is a C1-2 alkylene or an oxygen atom, and R1 is a hydrogen atom or an organic group represented by —X1—X2—X3 , wherein X1 is a single bond or —CH2—, X2 is a single bond or —O—, and X3 is a C1-20 alkyl group, a C1-20 haloalkyl group or a C1-20 alkyl group containing a cyano group.

公开(公告)号：US20160214066A1

公开(公告)日：2016-07-28

申请号：US15093519

申请日：2016-04-07

申请人： Chevron U.S.A. Inc. ,  Georgia Tech Research Corporation

发明人： Stephen Joseph MILLER ,  William John KOROS ,  Nanwen LI ,  Gongping LIU

IPC分类号： B01D71/64 ,  B01D69/08 ,  B01D67/00 ,  C08G73/10 ,  B01D53/22

CPC分类号： B01D71/64 ,  B01D53/228 ,  B01D67/0006 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/085 ,  B01D69/087 ,  B01D71/82 ,  B01D2256/245 ,  B01D2257/504 ,  B01D2323/30 ,  B01D2323/36 ,  B01D2325/20 ,  C08G73/101 ,  C08G73/1028 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1067 ,  C08L79/08 ,  Y02C10/10 ,  Y02P20/152 ,  C08L83/04

摘要： One method as described herein relates to making a membrane comprising an uncrosslinked high molecular weight, monoesterified polyimide polymer with a small amount of bulky diamine. These uncrosslinked high molecular weight, monoesterified polyimide polymers with a small amount of bulky diamine are useful in forming polymer membranes with high permeance and good selectivity that are useful for the separation of fluid mixtures. Also as described herein is a hollow fiber polymer membrane comprising an uncrosslinked high molecular weight, monoesterified polyimide polymer with a small amount of bulky diamine. The small amount of bulky diamine allows for formation of a membrane comprising the uncrosslinked polymer that exhibits high permeance and good selectivity.

摘要翻译： 本文所述的一种方法涉及制备包含未交联的高分子量单酯化聚酰亚胺聚合物与少量庞大二胺的膜。 这些具有少量庞大二胺的未交联的高分子量单酯化聚酰亚胺聚合物可用于形成用于分离流体混合物的高渗透性和良好选择性的聚合物膜。 同样如本文所述，中空纤维聚合物膜包含具有少量大体积二胺的未交联的高分子量单酯化聚酰亚胺聚合物。 少量的庞大的二胺允许形成包含显示高渗透性和良好选择性的未交联聚合物的膜。

公开(公告)号：US20160060377A1

公开(公告)日：2016-03-03

申请号：US14473232

申请日：2014-08-29

申请人： THE BOEING COMPANY

发明人： Thomas K. Tsotsis

IPC分类号： C08F238/00 ,  C08F226/06

CPC分类号： C08F238/00 ,  C08F226/06 ,  C08G73/101 ,  C08L79/08

摘要： Polyimides containing a backbone with at least one nanoparticle component and made from oligomers having endcaps that are difunctional or a mix of di- and monofunctionality are provided. The endcaps may be nadic or phenylethynyl. The backbone may be wholly inorganic or made from a mixture of inorganic and organic groups. The oligomers may be created in-situ using standard polymerization of monomeric reactants chemistry using a solvent or may be provided as a pre-imidized compound that may be either a solid or liquid. It is believed that the nanoparticle component of the polymer backbone provides superior thermo-oxidative stability verses unmodified organic backbones. It is further believed that providing difunctional or a mixture of di- and monofunctional endcaps allows for increased crosslinking to provide improved strength and stiffness verses wholly monofunctional endcapped oligomers for polyimides. The nanoparticle is part of the backbone of the polymer and not solely a pendant group.