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Polyester

A polyester and polymer polyester technology, applied in the polyester field, can solve problems such as warming and threatening human existence

Inactive Publication Date: 2009-09-09
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Petroleum, as a non-renewable resource, is the most important chemical raw material. However, due to the large amount of CO2 emissions in the use of engineering and final disposal, the large amount of CO2 emissions has led to a series of problems such as global warming, and directly threatens the survival of human beings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A mixed slurry of 9.2 kg of biological source 1,2-butanediol and 11.3 kg of terephthalic acid was put into the device with a stirring and rectifying tower, and 6.3 g of butyl stannic acid and 6.8 g of tetrabutyl titanate were added. , Gradually increase the temperature to 200-235℃ to carry out the esterification reaction, and collect the by-product water; but when the esterification reaction rate is above 95%, the esterification reaction is ended. After adding 2.6 grams of phosphoric acid, 6.8 grams of titanate is added. Butyl ester, the polycondensation reaction is carried out in the range of 230-250 ℃, when the set polymer viscosity torque is reached, the polymer is discharged and pelletized for use.

Embodiment 2

[0031] The same as the device of Example 1, put in 13.4 kg of dimethyl terephthalate and 11.6 kg of biologically sourced 1,2-butanediol raw materials, add 6 g of cobalt acetate, and carry out the process in the temperature range of 200-235°C After the transesterification reaction, methanol is removed, and the transesterification reaction rate reaches more than 95%, after adding 2.6 grams of phosphoric acid, 6.8 grams of tetrabutyl titanate is added, and the polycondensation reaction is carried out at a temperature of 230-250°C to reach the set polymerization. After the viscosity of the material is reached, spit out the polymer and cut into pellets for later use.

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PUM

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Abstract

The invention discloses a polyester, which is a macromolecular polyester prepared by the reaction of aromatic dicarboxylic acid or derivatives of the aromatic dicarboxylic acid and 1,2-butylene glycol, wherein the 1,2-butylene glycol is biologically derived. The carbon element component in the dibasic alcohol component of the raw materials of the polyester is derived from biological materials, but not from petroleum materials, thereby greatly reducing the emission of CO2 generated by petroleum refining.

Description

Technical field: [0001] The present invention relates to a polyester using raw materials of biological origin. Background technique: [0002] In recent years, with the deteriorating human living environment, people are paying more and more attention to the development of environmentally friendly materials and the use of renewable raw materials. As a non-renewable resource, petroleum is the most important chemical raw material. However, due to the large amount of CO2 emissions in the use of engineering and final disposal, the large amount of CO2 emissions has led to a series of problems such as global warming, and directly threatens the survival of mankind. How to replace and reduce the use of petroleum as a raw material is one of the important research issues that people face. [0003] Due to its good mechanical properties and molding processing properties, polyester has a wide range of uses in the fields of fibers, resins, and films, and is one of the most important synthetic ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183
Inventor 李旭盛思义本田圭介
Owner TORAY IND INC