公开(公告)号：US20240352202A1

公开(公告)日：2024-10-24

申请号：US18571342

申请日：2022-06-22

申请人： C.I. TAKIRON Corporation

发明人： Tatsuya IRIFUNE ,  Takuma KANEKO ,  Yuichiro KANZAKA ,  Shuuta YUGE

IPC分类号： C08J5/18 ,  B29C61/02 ,  B29K67/00 ,  B29K105/00 ,  B29L7/00 ,  C08G63/183 ,  C08G63/199 ,  C08G63/672 ,  C08L67/02

CPC分类号： C08J5/18 ,  B29C61/02 ,  C08G63/183 ,  C08G63/199 ,  C08G63/672 ,  C08L67/02 ,  B29K2067/00 ,  B29K2105/256 ,  B29K2995/0049 ,  B29L2007/00 ,  C08J2300/30 ,  C08J2367/02 ,  C08L2205/025 ,  C08L2207/20

摘要： The blocking phenomenon at the time of recycling can be effectively suppressed. Provided is a heat-shrinkable polyester film derived from a first polyester resin and a second polyester resin as a plurality of polyester resins having different crystallinity, the heat-shrinkable polyester film satisfying the following characteristics (A) to (E).



(A) and (B): The first polyester resin includes terephthalic acid, in which a reaction amount of ethylene glycol is in the range of 50 mol % or more and below 90 mol %, and the second polyester resin includes terephthalic acid, in which a reaction amount of ethylene glycol is 90 mol % or more.
(C) and (D): When predetermined isothermal crystallization measurement is performed, an exothermic peak appears within 12 minutes from the start, including a cooling process time, and the heat quantity of the exothermic peak is 5 to 35 J/g.
(E): The thermal shrinkage ratio in the main shrinkage direction as measured under predetermined conditions is 20% to 60%.

公开(公告)号：US20240279419A1

公开(公告)日：2024-08-22

申请号：US18565459

申请日：2022-05-25

申请人： puren GmbH

发明人： Thomas BOMMER ,  Anton DEMHARTER ,  Benjamin FELKER ,  Michael RHEIN ,  Michael MEIER

IPC分类号： C08J9/14 ,  C08G18/32 ,  C08G63/672 ,  C08G63/85

CPC分类号： C08J9/141 ,  C08G18/3218 ,  C08G63/672 ,  C08G63/85 ,  C08G2110/0025 ,  C08G2330/00 ,  C08J2203/14 ,  C08J2375/04

摘要： A rigid PUR/PIR foam is produced from at least one polyol which is synthesized from at least one polyhydric alcohol and at least one aromatic dicarboxylic acid, wherein the polyol is at least partially produced from renewable raw materials.

公开(公告)号：US12065592B2

公开(公告)日：2024-08-20

申请号：US17309561

申请日：2019-12-06

申请人： Eastman Chemical (China) Co., Ltd.

发明人： Ke Feng ,  Rui Xie ,  Austin Neal Britton ,  Sarah Exley Goetz ,  Thauming Kuo ,  Wentao Li ,  Timothy Glenn Williams

IPC分类号： C09J175/06 ,  B32B7/12 ,  C08G18/12 ,  C08G18/30 ,  C08G18/42 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C08G63/181 ,  C08G63/199 ,  C08G63/672 ,  C09J7/35 ,  C09J175/08

CPC分类号： C09J175/06 ,  B32B7/12 ,  C08G18/12 ,  C08G18/307 ,  C08G18/4216 ,  C08G18/423 ,  C08G18/425 ,  C08G18/73 ,  C08G18/755 ,  C08G18/7657 ,  C08G63/181 ,  C08G63/199 ,  C08G63/672 ,  C09J7/35 ,  C09J175/08 ,  B32B2439/70 ,  C08G2170/00 ,  C08G2170/20 ,  C08G2390/00 ,  C09J2203/326 ,  C09J2203/354 ,  C09J2301/122 ,  C09J2301/304 ,  C09J2301/306 ,  C09J2400/163 ,  C09J2423/106 ,  C09J2467/006 ,  C09J2475/00

摘要： This invention relates to adhesive compositions comprising a polyester polyol that includes residues of at least one 2, 2, 4, 4-tetraalkylcyclobutane-1, 3-diol, including, for example, 2, 2, 4, 4-tetramethylcyclobutane-1, 3-diol (TMCD). Adhesive compositions as described herein exhibit enhanced properties as compared to conventional adhesive compositions, and may be suitable for a wide variety of end use applications, including, flexible packaging, woodworking, automotive uses, and electronics.

公开(公告)号：US12064754B2

公开(公告)日：2024-08-20

申请号：US17741029

申请日：2022-05-10

申请人： NATIONAL TSING HUA UNIVERSITY ,  Chang Chun Plastics Co., Ltd. ,  Chang Chun Petrochemical Co., LTD. ,  DAIREN CHEMICAL CORP.

发明人： Yi-Chou Tsai ,  John Di Yi Ou ,  Chuan-Sheng Huang ,  Yung-Sheng Lin

IPC分类号： C07F7/28 ,  B01J31/22 ,  B01J31/38 ,  C08G63/672 ,  C08K5/00

CPC分类号： B01J31/38 ,  B01J31/2213 ,  C08G63/672 ,  C08K5/005

摘要： A titanium catalyst and a synthesizing method of polyester resins are provided in the present disclosure. The titanium catalyst has a chemical structure represented by Formula (I), Formula (II) or Formula (III).




The symbols shown in the Formula (I), the Formula (II) or the Formula (III) are defined in the description. The synthesizing method of polyester resins includes providing the titanium catalyst, performing a feeding step, performing a heating and pressurizing step and performing a heating and vacuuming step. The titanium catalyst and a heat stabilizer are added into an autoclave before the feeding step or before the heating and vacuuming step.

公开(公告)号：US20240247101A1

公开(公告)日：2024-07-25

申请号：US18560173

申请日：2022-05-02

申请人： Bell Polyester Products, Inc. ,  DAIWA CAN COMPANY

发明人： Takaaki IKEDA ,  Yusuke ITO ,  Akane NOZAKI

IPC分类号： C08G63/183 ,  A45D34/00 ,  A45D40/00 ,  B65D65/38 ,  C08G63/672

CPC分类号： C08G63/183 ,  B65D65/38 ,  C08G63/672 ,  A45D34/00 ,  A45D40/00

摘要： Polyester resin includes polymer of acid component (A) and alcohol component (B). Component (A) contains 72 mol % or more of terephthalic acid component (A1) and from 8 to 28 mol % of isophthalic acid component (A2) with respect to total amount of component (A). Component (B) contains 77 mol % or more of ethylene glycol component (B1) and from 4 to 18 mol % of 2,2-dimethyl-1,3-propanediol component (B2) with respect to total amount of component (B). Sum of content by percentage of component (A2) with respect to component (A) and content by percentage of component (B2) with respect to component (B) is from 24 to 43 mol %. Content of diethylene glycol component (B3) with respect to total amount of component (B) is 5 mol % or less. Polyester resin has intrinsic viscosity of from 0.48 to 0.67 dl/g.

公开(公告)号：US20240228699A1

公开(公告)日：2024-07-11

申请号：US18567024

申请日：2022-05-19

申请人： DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

发明人： Guangyuan ZHOU ,  Lu LI ,  Min JIANG ,  Rui WANG

IPC分类号： C08G63/85 ,  B01J35/34 ,  C08G63/183 ,  C08G63/672

CPC分类号： C08G63/85 ,  B01J35/34 ,  C08G63/183 ,  C08G63/672 ,  B01J2235/30

摘要： A preparation method of a polyester is provided. The method includes the following steps: allowing a raw material including a diacid and a diol to contact a monoclinic nano-TiO2 (namely, TiO2(B)) catalyst, and conducting an esterification reaction and a polycondensation reaction sequentially to obtain the polyester. The method can efficiently catalyze the synthesis of the polyester and avoid from yellowing of the polyester. Meanwhile, nano-TiO2(B) is polymerized in situ in the polyester, such that a structure of nano-TiO2(B) can adjust the structure and properties of a polyester matrix and effectively improve the mechanical, thermal, and barrier properties of the polyester.

公开(公告)号：US20240209143A1

公开(公告)日：2024-06-27

申请号：US18288072

申请日：2022-04-18

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Takami MORISHITA ,  Masayuki NAGAI ,  Makoto TOYOHARA

IPC分类号： C08G63/672

CPC分类号： C08G63/672

摘要： A polyester resin including dicarboxylic acid constituent units and diol constituent units, wherein the diol constituent units include a constituent unit A1 derived from a diol having a cyclic acetal skeleton and a constituent unit A2 derived from 2,2,4,4-tetramethoxy-1,3-cyclobutanediol, and wherein the dicarboxylic acid constituent units include a constituent unit B1 derived from 2,6-naphthalenedicarboxylic acid and/or dimethyl 2,6-naphthalenedicarboxylate.

公开(公告)号：US11958975B2

公开(公告)日：2024-04-16

申请号：US17292026

申请日：2019-11-12

申请人： KAO CORPORATION

发明人： Hiroki Kakiuchi ,  Ryoichi Hashimoto ,  Hirotaka Kashiwagi

IPC分类号： C08L95/00 ,  C08G63/181 ,  C08G63/672

CPC分类号： C08L95/00 ,  C08G63/181 ,  C08G63/672 ,  C08L2555/80

摘要： An asphalt composition containing asphalt and polyester, wherein a content of asphaltene in the asphalt is 18% by mass or more and 40% by mass or less, and a content of the polyester is 1 part by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the asphalt.

公开(公告)号：US11939425B2

公开(公告)日：2024-03-26

申请号：US17029822

申请日：2020-09-23

申请人： SK CHEMICALS CO., LTD.

发明人： Yoo Jin Lee ,  Su-Min Lee ,  Sung-Gi Kim ,  Min-Young Han ,  Dong-jin Han

IPC分类号： C08G63/672 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80

CPC分类号： C08G63/672 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G2390/00

摘要： The present invention relates to a polyester resin. The polyester resin is useful for bottles, sheets, multilayer sheets, stretched films and fiber applications due to excellent heat resistance and transparency, and in particular, the polyester resin has little deterioration of physical properties such as yellowing, etc., during processing. A process for making the polyester resin includes an esterification reaction between a dicarboxylic acid that includes terephthalic acid and a diol that includes isosorbide in the presence of a catalyst, followed by a polycondensation reaction on a product of the esterification reaction. In some embodiments, an initial mixing ratio of the dicarboxylic acid and the diol is between 1:1.02 and 1:1.04.

公开(公告)号：US11866546B2

公开(公告)日：2024-01-09

申请号：US16755754

申请日：2018-10-10

申请人： ROQUETTE FRERES

发明人： René Saint-Loup ,  Nicolas Jacquel

IPC分类号： C08G63/672 ,  C08G63/80 ,  C08L67/02

CPC分类号： C08G63/672 ,  C08G63/80 ,  C08L67/025 ,  C08L2205/06

摘要： A thermoplastic polyester, and in particular a thermoplastic polyester including at least one 1,4:3,6-dianhydro-L-iditol unit (A), at least one linear aliphatic diol unit (B), at least one aromatic dicarboxylic unit (C), the thermoplastic polyester having a reduced viscosity in solution (25° C.; phenol (50 wt. %):ortho-dichlorobenzene (50 wt. %); 5 g of polyester/L) greater than 25 mL/g. A method for preparing such a polyester, a composition including the same and the use of the thermoplastic polyester for the production of finished or semi-finished plastic articles. The thermoplastic polyester is advantageous in that it has a particularly high incorporation rate of 1,4:3,6-dianhydro-L-iditol (A) units, at least greater than 85%, and most specifically at least greater than 90%.