Title:
THERMOPLASTIC POLYESTER USED FOR THIN FILM, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/044692
Kind Code:
A1
Abstract:
Provided is a thermoplastic polyester used for a thin film. In a process of preparing a polyester, terephthalic acid and ethylene glycol are used to serve as a base material, another component is simultaneously added to adjust a group on a segment, and an auxiliary material is also prepared separate from the base material; the auxiliary material has a large quantity of functional groups, and terephthalic acid and ethylene glycol are also used to serve as a matrix. As a consequence, a better degree of dispersion during subsequent mixing and a polymerization reaction can be realized, and a better effect can be achieved. Also, the influence of a one-time reaction on a functional group is eliminated, allowing an obtained polyester to have more stable performance.
Inventors:
LIN FULIANG (CN)
Application Number:
PCT/CN2021/120055
Publication Date:
March 30, 2023
Filing Date:
September 24, 2021
Export Citation:
Assignee:
ZHENG RONGZHI (CN)
International Classes:
C08G63/685; C08G63/682; C08K13/06; C08L67/06
Foreign References:
| CN105860044A | 2016-08-17 | |||
| CN105860043A | 2016-08-17 | |||
| CN102634174A | 2012-08-15 | |||
| CN102660010A | 2012-09-12 | |||
| CN105175701A | 2015-12-23 | |||
| US4264745A | 1981-04-28 | |||
| US20060160986A1 | 2006-07-20 |
Attorney, Agent or Firm:
BEIJING KEYI INTELLECTUAL PROPERTY FIRM (CN)
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