Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of copolyester compound and preparation method

A technology of compound and copolyester, which is applied in the field of copolyester of biological source raw materials, can solve the problems of limited application range and low melting point

Inactive Publication Date: 2015-08-19
TORAY FIBER RES INST(CHINA) CO LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the fly in the ointment is its low melting point, which limits its scope of use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of copolyester compound and preparation method
  • A kind of copolyester compound and preparation method
  • A kind of copolyester compound and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] At a temperature of 250° C., 166 parts by weight of terephthalic acid and 75 parts by weight of bio-sourced ethylene glycol (product of Dacheng Group) were directly esterified to obtain a first prepolymer.

[0025] At a temperature of 160° C., 89 parts by weight of 2,5-furandicarboxylic acid (Mianyang High-tech Zone Gaote Technology Co., Ltd. product) and 212 parts by weight of biological source ethylene glycol (Dacheng Group product) were esterified ( ES reaction), obtain the second prepolymer.

[0026] The first prepolymer and the second prepolymer are weighed to calculate the ratio of furandicarboxylic acid group and terephthalic acid group in the product copolyester compound to be 5: 95, and the two kinds of low prepolymers weighed Mix well, put into the polymerization test tube, the addition amount of tetrabutyl titanate (AR, product of Shanghai Shisi Hewei Chemical Co., Ltd.) of the polymerization catalyst is 100ppm with respect to the copolyester compound total a...

Embodiment 2

[0029] At a temperature of 250° C., 166 parts by weight of terephthalic acid and 75 parts by weight of bio-sourced ethylene glycol (product of Dacheng Group) were directly esterified to obtain a first prepolymer.

[0030] At a temperature of 160° C., 89 parts by weight of 2,5-furandicarboxylic acid (Mianyang High-tech Zone Gaote Technology Co., Ltd. product) and 212 parts by weight of biological source ethylene glycol (Dacheng Group product) were esterified ( ES reaction), obtain the second prepolymer.

[0031] The first prepolymer and the second prepolymer are weighed to calculate the ratio of furandicarboxylic acid group and terephthalic acid group in the product copolyester compound to be 8:92, and the two kinds of low prepolymers weighed Mix well, put into the polymerization test tube, the addition amount of tetrabutyl titanate (AR, product of Shanghai Shisi Hewei Chemical Co., Ltd.) of the polymerization catalyst is 100ppm with respect to the copolyester compound total am...

Embodiment 3

[0033] At a temperature of 250° C., 166 parts by weight of terephthalic acid and 75 parts by weight of bio-sourced ethylene glycol (product of Dacheng Group) were directly esterified to obtain a first prepolymer.

[0034] At a temperature of 160° C., 89 parts by weight of 2,5-furandicarboxylic acid (Mianyang High-tech Zone Gaote Technology Co., Ltd. product) and 212 parts by weight of biological source ethylene glycol (Dacheng Group product) were esterified ( ES reaction), obtain the second prepolymer.

[0035] The first prepolymer and the second prepolymer are weighed to calculate the ratio of furandicarboxylic acid group and terephthalic acid group in the product copolyester compound to be 10:90, and the two kinds of weighed low prepolymer Mix well, put into the polymerization test tube, the addition amount of tetrabutyl titanate (AR, product of Shanghai Shisi Hewei Chemical Co., Ltd.) of the polymerization catalyst is 100ppm with respect to the copolyester compound total amou...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a copolyester compound and a method for preparing the same. The copolyester compound is prepared through copolymerization of biologically sourced diol, biologically sourced diacid and aromatic diacid, and the melting point Tm of the copolyester compound is more than or equal to 220 DEG C. In the preparation method, the aromatic diacid and the biologically sourced diacid are respectively esterified with the biologically sourced diol, and the obtained products are subjected to condensation polymerization to obtain the copolyester compound. The copolyester compound has the advantages of high melting point and wide scope of application.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a copolyester of biological source raw materials. Background technique [0002] As a class of polymers, polyester is widely used in a wide range of applications. In recent years, with the deteriorating environment of human beings, people have paid more and more attention to the development of environmentally friendly materials and the use of renewable raw materials. Petroleum as a non-renewable As resources are used in large quantities, how to replace and reduce the use of petroleum as raw materials is one of the important research issues that people are facing. [0003] Patent CN200810018622.1 provides a method for preparing polyester from semi-biological sources. The acid raw material terephthalic acid or dimethyl terephthalate is from petroleum, and the alcohol raw material ethylene glycol is from biological sources. The prepared polypara Ethylene phthalate has al...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/181C08G63/672C08G63/78
Inventor 杨小青祁华李旭
Owner TORAY FIBER RES INST(CHINA) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com