Microspheric ionomer having cross-linked structure, preparation method therefor, applications thereof, and preparation system thereof

US11965089B2 · kind B2 · utility

Assignees

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

Inventors

• Wenbo Song · Beijing, CN
• Hao Yuan · Lakewood, US
• Zhenjie Liu · Beijing, CN
• Jinliang Qiao · Beijing, CN
• Shijun Zhang · Beijing, CN
• Hua Yin · Beijing, CN
• Huijie Hu · Beijing, CN
• Qing Shao · Sunnyvale, US
• Jie Zhang · Beijing, CN
• Xiaomeng Zhang · Lo Wu, CN
• Dezhan Li · Hunan, CN
• Fuyong Bi · Beijing, CN

Key dates

• Filing date: Oct 25, 2018
• Grant date: Apr 23, 2024
• Expiry date: Feb 7, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2810/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A microspheric ionomer having a cross-linked structure, a preparation method therefor, applications thereof, and a preparation system thereof. The ionomer comprises structure units A represented by formula (1), structure units B represented by formula (2), and a cross-linking structure provided by a cross-linking agent, M being separately selected from H, a metal cation, and a straight chain, a saturated alkyl of branched or ring-shaped C1-C20, R being H or a methyl; and metal cations are introduced to part of structure units A in the ionomer. The ionomer shows an outstanding effect on nucleation of PET, serves as a nucleating agent for PET modification, so as to obtain a corresponding PET composition. A system and method for continuously preparing maleic acid ester ionomer microspheres and cross-linked maleic acid ionomer microspheres, so as to achieve continuous preparation, washing and separation of ionomer microspheres, effectively stabilizes the separation effect, and avoids frequent start and stop operations of a centrifuge.