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

Biobased polyethylene terephthalate

A technology of ethylene phthalate and base ethylene glycol, applied in the field of polyethylene terephthalate, can solve the problems of easy fading, easy dyeing, and the purity of ethylene glycol for polyester polymerization is not reached. , to achieve the effect of good environmental protection

Inactive Publication Date: 2009-09-09
TORAY FIBER RES INST(CHINA) CO LTD
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In CN200610028411.7, Donghua University discloses a preparation method of corn-based ethylene glycol and a method for preparing PDT copolyester fiber by direct polymerization of ethylene glycol prepared by the method. The bio-based ethylene glycol obtained by the method The highest content is 98%, which does not meet the requirement of 99.5% or more of the purity of ethylene glycol for polyester polymerization, and because the introduction of copolymerization components makes it different from conventional polyester, such as the copolyester fiber is easy to dye and fade

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The polymerization is completed on a 15Kg grade PET polymerization production line. After beating 12.97kg of terephthalic acid and 5.57kg of bio-based ethylene glycol in a beating tank, they are fed into an esterification tank for esterification, and then transferred into a polycondensation tank for polycondensation. The main polymerization process is: 1) main additives: catalyst antimony trioxide, 300ppm; semi-dulling agent titanium dioxide, 0.3% (according to product mass percentage); antioxidant triphenyl phosphite, 20ppm; 2) esterification temperature: 250 ° C, Esterification time: 3 hours and 40 minutes; 3) Polycondensation temperature: 280°C, polycondensation time: 3 hours and 20 minutes.

Embodiment 2

[0030] The polymerization is completed on a 15Kg grade PET polymerization production line. After 15.16kg of dimethyl terephthalate and 9.2kg of bio-based ethylene glycol are esterified, they are then transferred to a polycondensation tank for polycondensation. The main polymerization process is: 1) main additives: catalyst antimony trioxide, 300ppm; semi-dulling agent titanium dioxide, 0.3% (according to product mass percentage); antioxidant triphenyl phosphite, 20ppm; 2) esterification temperature: 235 ° C, Esterification time: 3 hours and 10 minutes; 3) Polycondensation temperature: 280°C, polycondensation time: 3 hours and 20 minutes.

[0031] Table 1 Comparison of performance indicators between bio-based PET and conventional PET

[0032] viscosity

[0033] Evaluation method

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
purityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a biobased polyethylene terephthalate. The melting point of the biobased polyethylene terephthalate is between 255 and 270 DEG C, and the ethylene glycol in the raw materials is a biobased ethylene glycol, namely the carbon element in the ethylene glycol component of the raw materials is sourced from biological materials. The polyethylene terephthalate sourced from biobased materials has excellent performances, and the melting point, the diethylene glycol content, the terminal group content, the characteristic viscosity of the biobased polyethylene terephthalate are the same as those of the polyethylene terephthalate sourced from common petroleum based materials; moreover, the biobased polyethylene terephthalate also meets the requirements on environmental protection.

Description

Technical field: [0001] The present invention is a polyethylene terephthalate. Background technique: [0002] In recent years, with the deterioration of the human living environment, people pay more and more attention to the development of environmentally friendly materials and the use of renewable raw materials. Petroleum, as a non-renewable resource, is the most important chemical raw material, but due to the large amount of CO in use engineering and final waste 2 emissions, CO 2 A large amount of emissions has led to a series of problems such as global warming, and directly threatens the survival of human beings. No new increase in CO in the environment if biological raw materials are used 2 content, to achieve the purpose of reducing the greenhouse effect and protecting the environment, and it can also increase the income of the crop market. Therefore, how to use bio-based raw materials to reduce the use of petroleum is one of the important research problems that peo...

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 Applications(China)
IPC IPC(8): C08G63/183
Inventor 吴兴立李旭本田圭介
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