公开(公告)号：US20250026883A1

公开(公告)日：2025-01-23

申请号：US18895967

申请日：2024-09-25

Applicant: Ajinomoto Co., Inc.

Inventor： Ichiro OGURA ,  Naoya SATO ,  Shunsuke TANAKA

IPC: C08G63/91 ,  C08G63/181 ,  C08G63/197 ,  C08G63/78 ,  C08J3/24 ,  C08J7/04 ,  C08K5/17 ,  C08L67/03 ,  C09D7/20 ,  C09D7/63 ,  C09D167/03 ,  H01L23/10 ,  H05K1/02

Abstract: An active ester resin comprising one or more of α-methylbenzyl groups per one molecule is capable of achieving an excellent dielectric dissipation factor in a high temperature environment.

公开(公告)号：US12195420B2

公开(公告)日：2025-01-14

申请号：US17834151

申请日：2022-06-07

Applicant: NOVAMONT S.P.A.

Inventor： Marco Cotti Comettini ,  Roberto Vallero ,  Catia Bastioli ,  Luigi Capuzzi

IPC: C07C31/20 ,  B01D3/00 ,  B01D3/14 ,  B01D15/36 ,  C07C29/76 ,  C07C29/80 ,  C08G18/42 ,  C08G63/181 ,  C08J5/18 ,  C08L67/02 ,  C12P7/18

Abstract: The invention relates to a process for the production of 1,4-butanediol comprising the preparation of a fermentation broth comprising 1,4-butanediol from renewable sources and water, separation of a liquid fraction comprising said 1,4-butanediol and water from one or more solid fractions, said liquid fraction comprising 2-pyrrolidone in an amount higher than 80 ppm, one or more passages of the resulting liquid fraction through a bed comprising one or more cation-exchange resins thereby providing an output pH of said liquid fraction from 4 to 2, one or more passages of the resulting liquid fraction through a bed comprising one or more anion-exchange resins thereby providing an output pH of said liquid fraction from 8 to 11, and the distillation of the liquid fraction thereby provided so as to obtain a composition having a concentration of said 1,4-butanediol higher than 99.0% by weight and comprising 2-pyrrolidone in an amount lower than 6 ppm. The resulting composition should exhibit an APHA color value after ageing of less than 30.

公开(公告)号：US12139600B2

公开(公告)日：2024-11-12

申请号：US15757147

申请日：2016-06-17

Applicant: Auriga Polymers, Inc.

Inventor： Sanjay Mehta

IPC: C08L67/02 ,  B29C49/00 ,  B29K67/00 ,  B29L31/00 ,  B65D1/02 ,  B65D1/40 ,  C08G63/16 ,  C08G63/181 ,  C08G63/688 ,  C09D167/02 ,  B29C49/06

Abstract: The invention relates to blends of sulfo-modified copolyester and polyalkylene furanoate such as polyethylene-, polybutylene-, or polytrimethylene-furanoate, or a mixture thereof. The sulfo-modified copolyester comprises at least about 75 mole % of polyethylene terephthalate or polyethylene naphthalate or a mixture thereof; and at least about 0.1 mole % to about 5 mole % of units of the Formula (I) wherein n is an integer from 3 to 10 and wherein M+ is an alkali metal ion, earth alkali metal ion, phosphonium ion or ammonium ion. Articles requiring high gas barrier are bottles for beer, juices, carbonated soft drinks, and the like.

公开(公告)号：US20230265239A1

公开(公告)日：2023-08-24

申请号：US18141613

申请日：2023-05-01

Applicant: Covation Inc.

Inventor： Hari Babu SUNKARA ,  Paul J. Pigliacampi

IPC: C08G63/672 ,  C08G63/181 ,  C08G63/85 ,  C08K5/18

CPC classification number: C08G63/672 ,  C08G63/181 ,  C08G63/85 ,  C08K5/18

Abstract: A process to prepare poly(alkylene furandicarboxylate) polymer is disclosed herein. In one embodiment, the process comprises a) contacting a mixture comprising furandicarboxylic acid dialkyl ester, a diol comprising ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, or mixtures thereof, and a metal catalyst at a temperature in the range of from about 140° C. to about 220° C. to form prepolymer,



wherein the mole ratio of the furandicarboxylic acid dialkyl ester to the diol is in the range of from 1:1.3 to 1:2.2;
b) performing polycondensation by heating the prepolymer under reduced pressure to a temperature in the range of from about 220° C. to about 260° C. to form poly(alkylene furandicarboxylate) polymer;
wherein the rate of polycondensation in step c) is faster with the anthraquinone compound present than without; and
c) adding at least one anthraquinone compound as disclosed herein; and

公开(公告)号：US11479690B2

公开(公告)日：2022-10-25

申请号：US17196937

申请日：2021-03-09

Applicant: COVESTRO (NETHERLANDS) B.V.

Inventor： Matthias Johannes Cornelis Bos ,  Paulus Franciscus Anna Buijsen ,  Johannes Albertus Hettinga

IPC: C09D167/02 ,  C08G63/20 ,  C09D167/00 ,  C08G63/16 ,  C09D5/03 ,  B05D1/06 ,  B05D1/10 ,  B05D3/02 ,  C09D167/03 ,  C08L67/00 ,  C08L67/02 ,  C08L67/03 ,  C08G63/123 ,  C08G63/02 ,  C08G63/127 ,  C08G63/12 ,  C08G63/00 ,  C08G63/18 ,  C08G63/181 ,  C08G63/183 ,  C08J3/24 ,  C08K5/00 ,  C08K5/1515 ,  C08K5/32

Abstract: A branched carboxylic acid functional polyester resin P is described herein along with thermosetting powder coating compositions (PCC A) comprising a binder K, the binder K comprising the polyester resin P and a crosslinker X. The invention further relates to a cured PCC A. In addition, processes for making said PCC A and processes for coating an article with said PCC A are described as well as articles having coated thereon the PCC A and an articles having coated and cured thereon the PCC A.

公开(公告)号：US20220275149A1

公开(公告)日：2022-09-01

申请号：US17629063

申请日：2020-07-20

Applicant: Toray Industries, Inc.

Inventor： Yusuke Tojo ,  Kohei Miyamoto ,  Makito Yokoe

IPC: C08G63/181 ,  C08G63/50 ,  C08L67/02 ,  B32B15/09

Abstract: A thermoplastic polyester resin includes a residue of an aromatic dicarboxylic acid or an ester-forming derivative thereof and a residue of a diol or an ester-forming derivative thereof, as main structural units, wherein the thermoplastic polyester resin has a hydroxy group concentration of 0.050 mmol/g or less. The use of such a thermoplastic polyester resin enables production of a molded article having excellent mechanical properties and heat resistance, and a reduced dielectric loss tangent at a high frequency of 1 GHz or more.

公开(公告)号：US11377409B2

公开(公告)日：2022-07-05

申请号：US16766498

申请日：2018-11-27

Applicant: NOVAMONT S.P.A

Inventor： Marco Cotti Comettini ,  Roberto Vallero ,  Catia Bastioli ,  Luigi Capuzzi

IPC: C07C29/80 ,  B01D3/00 ,  B01D15/00 ,  C08G18/00 ,  C07C29/76 ,  B01D3/14 ,  B01D15/36 ,  C07C31/20 ,  C08G18/42 ,  C08G63/181 ,  C08J5/18 ,  C08L67/02 ,  C12P7/18

Abstract: The invention relates to a process for the production of 1,4-butanediol comprising the preparation of a fermentation broth comprising 1,4-butanediol from renewable sources and water, separation of a liquid fraction comprising said 1,4-butanediol and water from one or more solid fractions, said liquid fraction comprising 2-pyrrolidone in an amount higher than 80 ppm, one or more passages of the resulting liquid fraction through a bed comprising one or more cation-exchange resins thereby providing an output pH of said liquid fraction from 4 to 2, one or more passages of the resulting liquid fraction through a bed comprising one or more anion-exchange resins thereby providing an output pH of said liquid fraction from 8 to 11, and the distillation of the liquid fraction thereby provided so as to obtain a composition having a concentration of said 1,4-butanediol higher than 99.0% by weight and comprising 2-pyrrolidone in an amount lower than 6 ppm. The resulting composition should exhibit an APHA color value after ageing of less than 30.

公开(公告)号：US20220025231A1

公开(公告)日：2022-01-27

申请号：US17309561

申请日：2019-12-06

Applicant: Eastman Chemical (China) Co., Ltd.

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

IPC: C09J175/06 ,  C09J175/08 ,  C08G18/12 ,  C08G18/30 ,  C08G18/42 ,  C08G18/73 ,  C08G18/75 ,  C08G63/181 ,  C08G63/199 ,  C08G63/672

Abstract: 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：US20210380801A1

公开(公告)日：2021-12-09

申请号：US17284703

申请日：2019-10-16

Applicant: JAPAN COMPOSITE CO., LTD.

Inventor： Ikuo AKAI ,  Masahiro HAKOTANI ,  Takashi TSUKAMOTO

IPC: C08L67/03 ,  C08G63/181 ,  H01M50/121 ,  C08K3/32 ,  C08K3/22

Abstract: An unsaturated polyester resin composition includes: a resin component comprising an unsaturated polyester, a polymerizable monomer, and a low profile agent; aluminum hydroxide; and a fire retardant. The unsaturated polyester is a polymerized product of polybasic acid and polyhydric alcohol. The polybasic acid has an ethylenic unsaturated double bond at a predetermined ratio. The polyvinyl acetate is blended as a low profile agent relative to the resin component at a predetermined ratio. Aluminum hydroxide is blended relative to the resin component at a predetermined ratio.

公开(公告)号：US11186072B2

公开(公告)日：2021-11-30

申请号：US16047203

申请日：2018-07-27

Applicant: Mitsubishi Polyester Film GmbH

Inventor： Herbert Peiffer ,  Stefan Bartsch ,  Martin Jesberger ,  Tobias Rentzsch

IPC: B32B27/36 ,  B32B27/08 ,  B32B7/06 ,  B32B27/18 ,  B32B27/30 ,  C08G63/181 ,  B65D65/40 ,  C08J7/04 ,  C08J7/043 ,  C08J7/052 ,  C08J7/054 ,  C08G63/183 ,  C08L67/02 ,  B32B38/00 ,  B32B37/15 ,  C09D133/10 ,  B05D7/04 ,  C09D167/02 ,  C09D133/08 ,  C09D133/04 ,  C08J3/24

Abstract: A transparent peelable polyester film is provided having a base layer (B) with first and second surfaces. A layer (C) is applied on the base layer (B). A heat-sealable layer (A), peelable to APET AND RPET, is applied on the opposing surface of the base layer (B). The heat-sealable and peelable outer layer (A) is formed from (a) from 85 to 99% by weight of polyester and (b) from 1 to 15% by weight of other substances. The polyester is formed from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid, and the polyester includes at least 10 mol % of units derived from linear or branched diols having more than 2 and the layer (C) includes crosslinked acrylate and/or methacrylate-based copolymers.