公开(公告)号：US20230040523A1

公开(公告)日：2023-02-09

申请号：US17783790

申请日：2020-12-15

申请人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG

发明人： Jan HEIJL ,  Annabelle BERTIN ,  Alexander MEYER ,  Helmut Siegen HEUER

IPC分类号： C08G63/64 ,  C08G63/83 ,  C08G63/87

摘要： The present invention relates to a method for producing an aliphatic polyester carbonate, the polyester carbonate itself, and to moulding compositions and moulded articles containing the polyester carbonate. The claimed method is characterised in particular in that the method comprises three steps and the last step is a melt transesterification method in the presence of two catalysts.

公开(公告)号：US11530342B2

公开(公告)日：2022-12-20

申请号：US16705351

申请日：2019-12-06

申请人： Eastman Chemical Company

发明人： Shawn Marie Dougherty ,  Terri Roxanne Carvagno ,  Monika Karin Wiedmann Boggs ,  Nick Allen Collins ,  Robert Jacks Sharpe ,  Ke Feng ,  Thauming Kuo ,  Liu Deng ,  Christopher Harlan Burk ,  Vasudev R. Bhonde

IPC分类号： C09J167/02 ,  C09J171/00 ,  C08G63/87 ,  C08G63/91 ,  C09D167/02 ,  C09D7/20 ,  C08G12/00 ,  C09D161/20 ,  C09J5/00 ,  C09J161/20 ,  C09D7/65 ,  C09J11/08 ,  C08L67/03 ,  C09J167/03 ,  C08J3/24 ,  C08J7/043 ,  C08J5/18 ,  C09D167/00 ,  C09D175/08 ,  C08G63/00 ,  C08K3/013 ,  C08K5/00 ,  C08K5/07 ,  C08K5/3462 ,  C08K5/18

摘要： This invention relates to a curable composition comprising: I. a first component comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups, II. a second component comprising at least one curing agent having at least one aldehyde functional group, and III. a third component comprising at least one primary amine or at least one secondary amine, salts thereof, or combinations thereof.

公开(公告)号：US11447670B2

公开(公告)日：2022-09-20

申请号：US16705331

申请日：2019-12-06

申请人： Eastman Chemical Company

发明人： Thauming Kuo ,  Nick Allen Collins ,  Terri Roxanne Carvagno

IPC分类号： C09J167/02 ,  C09J171/00 ,  C08G63/87 ,  C08G63/91 ,  C09D167/02 ,  C09D7/20 ,  C08G12/00 ,  C09D161/20 ,  C09J5/00 ,  C09J161/20 ,  C09D7/65 ,  C09J11/08 ,  C08L67/03 ,  C09J167/03 ,  C08J3/24 ,  C08J7/043 ,  C08J5/18 ,  C09D167/00 ,  C09D175/08 ,  C08G63/00 ,  C08K3/013 ,  C08K5/00 ,  C08K5/07 ,  C08K5/3462 ,  C08K5/18

摘要： This invention relates to a curable adhesive composition comprising: I. Component (I) comprising at least one amorphous or semi-crystalline polyester or at least one polyether or combinations thereof having at least one or at least two functional groups selected from the group consisting of β-ketoester and malonate functional groups, II. Component (II) comprising at least one or at least two aldehyde functional groups or isomers thereof, and III. Component (III) comprising at least one basic catalyst, salts thereof, or combinations thereof.

公开(公告)号：US11434400B2

公开(公告)日：2022-09-06

申请号：US16705377

申请日：2019-12-06

申请人： Eastman Chemical Company

发明人： Shawn Marie Dougherty ,  Terri Roxanne Carvagno ,  Monika Karin Wiedmann Boggs ,  Christopher Harlan Burk ,  Nick Allen Collins ,  Thauming Kuo

IPC分类号： C09J167/02 ,  C09J171/00 ,  C08G63/87 ,  C08G63/91 ,  C09D167/02 ,  C09D7/20 ,  C08G12/00 ,  C09D161/20 ,  C09J5/00 ,  C09J161/20 ,  C09D7/65 ,  C09J11/08 ,  C08L67/03 ,  C09J167/03 ,  C08J3/24 ,  C08J7/043 ,  C08J5/18 ,  C09D167/00 ,  C09D175/08 ,  C08G63/00 ,  C08K3/013 ,  C08K5/00 ,  C08K5/07 ,  C08K5/3462 ,  C08K5/18

摘要： This invention relates to an assembly component comprising at least one substrate coated with at least one curable composition comprising: I. a first component (I) comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups, II. a second component (II) comprising at least one curing agent having at least one aldehyde functional group, and III. a third component (III) comprising at least one compound having amine functionality, salts thereof, or combinations thereof.

公开(公告)号：US11247199B2

公开(公告)日：2022-02-15

申请号：US17356509

申请日：2021-06-24

申请人： ZHEJIANG UNIVERSITY

发明人： Xinghong Zhang ,  Jialiang Yang ,  Lanfang Hu

IPC分类号： B01J31/02 ,  B01J31/14 ,  C08G59/68 ,  C08G63/52 ,  C08G63/87 ,  C08G64/02 ,  C08G64/34 ,  C08G65/26

摘要： The present disclosure provides a Lewis acid-base pair catalytic initiator and an application thereof. The Lewis acid-base pair catalytic initiator includes a Lewis acid and a Lewis base, the Lewis acid having a structural general formula as shown in formula (I) and the Lewis base having a structural general formula as shown in formula (II); wherein: the A is selected from element Baron or element Aluminum; the R1, R2, R3, R4 are independently selected from alkyl, alkoxy, aryl or halogen groups; the alkyl or alkoxy have a carbon number being equal to or greater than 1 to equal to or less than 16; the aryl contains substituents with the number being equal to or less than 5, the substituents being selected from methyl, methoxy or halogen; n is selected from an integer from 1 to 16.

公开(公告)号：US20220002481A1

公开(公告)日：2022-01-06

申请号：US17293899

申请日：2018-11-15

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

发明人： Danhua YUAN ,  Jiacheng XING ,  Yunpeng XU ,  Zhongmin LIU

IPC分类号： C08G63/698 ,  C08G63/85 ,  C08G63/84 ,  C08G63/87 ,  C08G63/86 ,  C08G63/83 ,  C08G63/68 ,  C08G63/695 ,  C08G63/692

摘要： The present application discloses a method for preparing polyester polyol comprising performing transesterification of raw materials containing inorganic oxyacid ester and polyhydric alcohol to obtain the polyester polyol. The polyester polyol obtained by the method described in the present application has higher heat resistance.

公开(公告)号：US20200002469A1

公开(公告)日：2020-01-02

申请号：US16482251

申请日：2018-02-08

申请人： TUBITAK

发明人： Serdar SEZER ,  Umran AYDEMIR SEZER ,  Vildan SANKO

IPC分类号： C08G63/06 ,  C08G63/85 ,  C08G63/87 ,  C08G63/81 ,  C08G63/78

摘要： The invention relates to the synthesis method of polyglycolic acid (PGA) obtained by removing the excessive water and monomer formed subsequent to condensation by means of an organic solvent and using azeotropic distillation method in the presence of a catalyst. The invention is a synthesis method of polyglycolic acid with high molecular weight and high solubility, characterized by comprising the steps of placing the glycolic acid in reaction medium with a catalyst; using hydrophilic organic solvents for removing the excessive water and monomer formed during condensation; mixing and boiling the mixture; stabilizing the amount of solvent in reaction medium and distilling the water off by means of Dean stark apparatus and/or a similar apparatus; refluxing the solid polymer obtained at the end of the reaction with ethyl acetate and removing the same from monomer residue and catalyst.

公开(公告)号：US10273332B2

公开(公告)日：2019-04-30

申请号：US15306774

申请日：2015-04-30

申请人： Resinate Materials Group, Inc.

发明人： Rick Tabor ,  Eric D. Vrabel ,  Kevin Anthony Rogers ,  Shakti L. Mukerjee ,  Matthew J. Beatty ,  Adam William Emerson ,  Matthew T. Brown ,  Jack Rogers Kovsky ,  Michael D. Kellerman ,  Michael Robert Christy

IPC分类号： C07C67/03 ,  C07C69/82 ,  C08G18/42 ,  C08G18/72 ,  C08G63/87 ,  C08J11/24 ,  C08G63/183 ,  C08G63/553

摘要： Polyester polyols made from recycled polyethylene terephthalate (rPET) and processes for making them are disclosed. The rPET is heated with a C3-C10 glycol reactant to give a digested intermediate comprising glycols and a terephthalate component, which comprises 45 to 70 wt. % of bis(hydroxyalkyl)terephthalates, and preferably lesser amounts of terephthalate dimers and trimers. Treatment of the digested intermediate with activated carbon gives a polyester polyol having a color index less than 20. The polyols have desirable hydroxyl numbers, viscosities, appearance, and other attributes for formulating polyurethane products and are a sustainable alternative to bio- or petrochemical-based polyols.

公开(公告)号：US20180265629A1

公开(公告)日：2018-09-20

申请号：US15760973

申请日：2016-09-16

申请人： Micromidas, Inc.

发明人： John Albert BISSELL, II ,  Makoto Nathanael MASUNO ,  Alexander Crewe-Read MILLAR ,  Dimitri A. HIRSCH-WEIL

IPC分类号： C08G63/87 ,  C08G63/00

CPC分类号： C08G63/87 ,  C07D307/24 ,  C07D307/68 ,  C08G63/00 ,  C08G63/181 ,  C08G63/672

摘要： Provided herein are methods of producing polymers from furan and optionally diol compounds, using an organocatalyst. The furan compounds may include, for example, 2,5-furandicarboxylic acid or 2,5-tetrahydrofurandicarboxylic acid. Provided herein are also polymer compositions, such as poly(alkylene-2,5-furandicarboxylate). The polymer compositions herein have a low metal content.

公开(公告)号：US09896539B2

公开(公告)日：2018-02-20

申请号：US15263322

申请日：2016-09-12

申请人： Nanjing University

发明人： Hong Li ,  Quanxing Zhang ,  Xiangqian Sun ,  Yunlong Xu ,  Wei Huang ,  Aimin Li

IPC分类号： C08G63/183 ,  C08G63/85 ,  C08G63/87 ,  C08G63/80

CPC分类号： C08G63/87 ,  C08G63/183 ,  C08G63/80 ,  C08G63/85

摘要： A method for synthesizing poly(butylene adipate-co-terephthalate) by combination of melt and solid state polycondensation using an organic guanidine as a main catalyst. The ternary catalyst system includes a main catalyst, a first cocatalyst, and a second cocatalyst. The main catalyst is organic guanidine; the first cocatalyst is titanate ester or zirconate ester; and the second cocatalyst is metallic oxide. The method includes: 1) adding 1,4-butanediol (BDO), adipic acid (AA), terephthalic acid (TA), and a ternary catalyst system to a reaction still; conducting an oligo-polycondensation to yield a oligomer having the weight average molecular weight (Mw) of between 3.0×103 and 4.0×103; allowing the oligomer to perform a melt polycondensation (MP) to yield a prepolymer with medium Mw of between 1.5×104 and 3.0×104; and 2) crushing the solid prepolymer into granules of 30-40 meshes, and then allowing the granules to undergo solid state polycondensation to yield the final PBAT product.