公开(公告)号：US20240425645A1

公开(公告)日：2024-12-26

申请号：US18828172

申请日：2024-09-09

Applicant: SHINTECH CORPORATION ,  JEPLAN, INC.

Inventor： Masaki TAKAO ,  Toru SAKAI ,  Hiroshi FUJITA ,  Shuji INADA

IPC: C08G63/90 ,  C08J11/06

Abstract: A method for producing a decolorized polyester according to the present invention includes: a step of preparing a polyester colored with a colorant, and a decolorizing agent containing a glycol ether-type compound having a boiling point at atmospheric pressure of 160° C. or higher; and a step of removing the colorant, by bringing the decolorizing agent into contact at least once with the colored polyester while heating the decolorizing agent to a temperature equal to or lower than a melting point of the polyester, to thereby obtain the decolorized polyester.

公开(公告)号：US20240287216A1

公开(公告)日：2024-08-29

申请号：US18572456

申请日：2022-07-19

Applicant: TOTALENERGIES ONETECH BELGIUM

Inventor： Serge EON

IPC: C08F6/00 ,  C08F10/02 ,  C08F12/08 ,  C08G63/08 ,  C08G63/90

CPC classification number: C08F6/005 ,  C08F10/02 ,  C08F12/08 ,  C08G63/08 ,  C08G63/90

Abstract: The present invention relates to a process for reducing volatiles in a polymer melt feed. The present invention also relates to a devolatilization apparatus for removing volatiles from a polymer melt feed.

公开(公告)号：US20240002587A1

公开(公告)日：2024-01-04

申请号：US18254432

申请日：2022-10-10

Applicant: NINGBO MICHI TECHNOLOGY CO., LTD.

Inventor： Hongwei BAI ,  Shihao DENG ,  Qiang FU ,  Zeshuang QIAO ,  Qin ZHANG ,  Ke WANG

IPC: C08G63/08 ,  C08G63/90 ,  A61Q11/00 ,  A61K8/85

CPC classification number: C08G63/08 ,  C08G63/90 ,  A61Q11/00 ,  A61K8/85 ,  A61K2800/54 ,  A61K2800/92

Abstract: A piezoelectric polylactic acid material is has a layered stacking structure, and a porous structure is formed between stacked layers. The piezoelectric polylactic acid material has a piezoelectric constant of 5.2-35.3 pC/N, has the ability to efficiently catalyze dye/pigment degradation, and can be used in the fields of dye/pigment degradation and tooth whitening. A preparation method for the piezoelectric polylactic acid composite material is also provided.

公开(公告)号：US20230220154A1

公开(公告)日：2023-07-13

申请号：US18153588

申请日：2023-01-12

Applicant: Meredian, Inc.

Inventor： Joe B. Grubbs, III ,  Karson Durie ,  Michael J. Joyce

IPC: C08G63/06 ,  C08G63/90 ,  C12P7/625

CPC classification number: C08G63/06 ,  C08G63/90 ,  C12P7/625

Abstract: A cake material is disclosed, made up of polyhydroxyalkanoate (PHA) cake that is formed directly from biomass and subsequent purification processes absent any heated drying step, with a moisture content of no less than about 5% by weight, and a Dv (90) particle size of no more than about 8 microns.

公开(公告)号：US11352464B2

公开(公告)日：2022-06-07

申请号：US16337667

申请日：2017-09-27

Applicant: Sulzer Chemtech AG

Inventor： Liborio Ivano Costa ,  Peter Joachim Fleckenstein ,  Jan-Georg Rosenboom ,  Giuseppe Storti ,  Massimo Morbidelli

IPC: C08G63/42 ,  C08G63/78 ,  C08G63/181 ,  C08G63/91 ,  C08G63/90 ,  C08K5/06 ,  C08K5/04 ,  C08K5/10 ,  C08K5/13

Abstract: A process to produce a polyester polymer by polymerization of a cyclic polyester oligomer composition comprising a cyclic polyester oligomer having furanic units in the presence of a plasticizer, as well as the polyester polymer obtained thereby.

公开(公告)号：US11225551B2

公开(公告)日：2022-01-18

申请号：US16969397

申请日：2019-02-12

Applicant: Fuyao Zhang

Inventor： Fuyao Zhang ,  Yuxiang Shao ,  Huoming Li

IPC: C08G65/48 ,  A61K9/107 ,  C08G63/87 ,  C08G63/90 ,  C08G63/91 ,  C08G65/333 ,  B82Y5/00

Abstract: The present invention relates to an amphiphilic block copolymer represented by formula I, a preparation method thereof, and a nanomicelle drug delivery system formed from the copolymer and a poorly soluble drug. The amphiphilic block copolymer includes a hydrophilic chain segment, a hydrophobic chain segment, and a linker for linking the hydrophilic chain segment to the hydrophobic chain segment. The linker contains an unsaturated structure, which can enhance the interaction between the poorly soluble drug and the copolymer to improve the drug loading ability and stability of the nanomicelle. The invention also relates to a nanomicelle drug-loading system, a preparation method thereof, and the use of the nanomicelle drug-loading system for preparing medicines for treating tumors, inflammation, diabetes, central nervous system diseases, cardiovascular diseases, and psychological disorders.

公开(公告)号：US20210340316A1

公开(公告)日：2021-11-04

申请号：US17137545

申请日：2020-12-30

Applicant: COFCO (jilin) Bio-Chemical Technology CO., Ltd ,  Nutrition & Health Research Institute, COFCO Corporation ,  COFCO BIOTECHNOLOGY CO., LTD.

Inventor： Yi Tong ,  Yi Li ,  Fang Tian ,  Kejia Xu ,  Yuanheng Guo ,  Bo Chen ,  Tai An ,  Dayong Li ,  Haijun Liu ,  Lida Wu

IPC: C08G63/90 ,  C12P7/62 ,  B01D39/08 ,  B01D1/16 ,  B01D21/26 ,  B01D37/02

Abstract: Provided a method for separating PHA and PHA prepared therefrom. The method comprises the following steps: subjecting a PHA fermentation broth to solid-liquid separation to obtain a thallus precipitate; breaking cell walls of the thallus precipitate, and subjecting obtained wall-broken products to a plate and frame filtration to obtain PHA; a filter cloth for the plate and frame filtration is pre-coated with a PHA layer. The method adopts a plate and frame separation to replace the traditional centrifugal separation to prepare PHA, and the PHA layer is pre-coated on the filter cloth for the plate and frame filtration, thereby overcome the defects in the prior art such as high cost and operational difficulty caused by adopting multiple centrifugal separations; in addition, the method of the present disclosure also exhibits the advantages of high recovery rate of PHA and high purity of the prepared PHA product.

公开(公告)号：US11149111B2

公开(公告)日：2021-10-19

申请号：US16606388

申请日：2018-03-23

Applicant: Sulzer Management AG

Inventor： Liborio Ivano Costa ,  Peter Joachim Fleckenstein ,  Jan-Georg Rosenboom ,  Giuseppe Storti ,  Massimo Morbidelli

IPC: C08G63/181 ,  C08G63/81 ,  C08G63/90 ,  C08G63/91

Abstract: A process to prepare a (iv) cyclic polyester oligomer composition includes a cyclic polyester oligomer having furanic units and two to five repeat units. The process includes (a) reacting a monomer composition including: (i) a bifunctional furan-derivative and (ii) a diol in an linear oligomerization step to produce a (iii) linear oligomer composition including a linear oligomer species, (b) reacting the (iii) linear oligomer composition in a distillation-assisted cyclization (DA-C) step to form a (iv) cyclic polyester oligomer composition and a (v) diol byproduct. The (v) diol byproduct is removed by evaporation in the distillation-assisted cyclization (DA-C) step.

公开(公告)号：US20200283568A1

公开(公告)日：2020-09-10

申请号：US16765297

申请日：2018-11-20

Applicant: Rebio Technologies Oy ,  Rebio Technologies Limited ,  Rebio Technologies Limited

Inventor： Jonathan Glen ,  Harri Jukarainen ,  Jukka Tuominen

IPC: C08G63/08 ,  A61K38/26 ,  A61K9/00 ,  A61K9/16 ,  A61K47/34 ,  C08G63/90

Abstract: Provided herein is a bioresorbable polyester wherein the metal content of the polyester is >0 ppm and 0 ppm comprising the steps of: i) dissolving the polyester in an organic solvent to form a polyester-solvent solution, wherein the organic solvent comprises at least one heteroatom selected from oxygen, nitrogen, sulphur and phosphorus; ii) precipitating the polyester from the polyester-solvent solution by combining the polyester-solvent solution with an organic non-solvent, said non-solvent being an alcohol; and (iii) separating the precipitated polyester from the solvent and non-solvent to obtain a purified polyester.

公开(公告)号：US20190352457A1

公开(公告)日：2019-11-21

申请号：US16346899

申请日：2017-11-03

Applicant: UHDE INVENTA-FISCHER GMBH ,  thyssenkrupp AG

Inventor： Udo MÜHLBAUER ,  Rainer HAGEN

IPC: C08G63/90 ,  C08G63/08 ,  C08G63/78 ,  B01D1/06 ,  B01D1/00

Abstract: A method for removing compounds in the gaseous aggregate state from PLA-containing products in the viscous aggregate state by means of a thin-film evaporator. The compounds may be present in the liquid or solid aggregate state in the products under standard conditions. The invention further relates to a polylactide resin prepared in accordance with the method of the invention.