Polyester composition, preparation method therefor and application thereof

US11466151B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Cui Zheng · Beijing, CN
• Guixiang Zhu · Beijing, CN
• Lizhi Liu · Lake Jackson, US
• Wei Zhang · Lianyungang, CN
• Xuerong Yao · Beijing, CN
• Minqiao Ren · Beijing, CN
• Ling Han · Beijing, CN
• Yi Ren · Nanjing, CN
• Nan-Kuang Chen · Taipei, TW
• Ying Shi · Shijiazhuang, CN

Key dates

• Filing date: Oct 20, 2017
• Grant date: Oct 11, 2022
• Expiry date: Dec 11, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/03
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.