公开(公告)号：US11466151B2

公开(公告)日：2022-10-11

申请号：US16343711

申请日：2017-10-20

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Cui Zheng ,  Guixiang Zhu ,  Lizhi Liu ,  Wei Zhang ,  Xuerong Yao ,  Minqiao Ren ,  Ling Han ,  Yi Ren ,  Nan Chen ,  Ying Shi

IPC分类号： C08L67/02 ,  A61F5/01 ,  A61L15/12 ,  A61L15/14 ,  A63B71/10 ,  C08L67/03 ,  A63B71/12 ,  B29B9/06 ,  B29K67/00

摘要： A polyester composition includes a first polyester selected from one or more of aliphatic-aromatic copolyesters, which is a copolymer comprising repeating units A as shown in formula (I) and repeating units B as shown in formula (II), in which m is an integer of 2 to 10 and n is an integer of 2 to 8; p is an integer of 2 to 10; and m, n and p are the same or different from each other. Optionally, the polyester composition has a second polyester. The polyester composition includes at least two polyesters. The polyester composition can be used in shape memory materials, 3D print wires, heat shrinkable sleeves, functional layers, medical limb immobilization braces, heat shrinkable thin films, nonwoven fabrics, elastic fibers, etc.

公开(公告)号：US11053385B2

公开(公告)日：2021-07-06

申请号：US16343704

申请日：2017-10-20

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

发明人： Cui Zheng ,  Guixiang Zhu ,  Lizhi Liu ,  Wei Zhang

IPC分类号： C08L67/02 ,  B29C48/92 ,  B29C48/40 ,  C08G63/80 ,  C08K3/26 ,  C08K5/00 ,  C08K5/053 ,  C08L23/06 ,  C08L77/00 ,  B29K67/00 ,  C08G63/183

摘要： A polyester composition includes polybutylene terephthalate and an aliphatic-aromatic copolyester. Based on the total weight of the polybutylene terephthalate and the aliphatic-aromatic copolyester, the content of the polybutylene terephthalate is from 50 to 99% by weight, and the content of the aliphatic-aromatic copolyester is from 1 to 50% by weight. Further, a method for preparing such a polyester composition and a toughened composite material prepared therefrom. The polyester composition has an elongation at break of up to 230% or more, and an improved toughness without substantial loss of strength.

公开(公告)号：US10934391B2

公开(公告)日：2021-03-02

申请号：US16343332

申请日：2017-10-20

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Cui Zheng ,  Guixiang Zhu ,  Lizhi Liu ,  Wei Zhang

IPC分类号： C08G63/183 ,  C08J3/12 ,  C08K3/04 ,  C08K3/26 ,  C08K3/32 ,  C08K3/34 ,  C08K5/00 ,  C08K5/20 ,  C08L67/02 ,  C08L23/06 ,  C08L45/00 ,  C08L77/00

摘要： A polyester composition, includes an aliphatic polyester and an aliphatic-aromatic copolyester. The aliphatic-aromatic copolyester is a copolymer having a repeating unit A and a repeating unit B. The preparation method for the polyester composition includes the steps of mixing all the components having the aliphatic polyester and the aliphatic-aromatic copolyester, and subjecting the resulting mixture to extrusion granulation.