Preparation method of polybutylene succinate

A technology for polybutylene succinate and monomethyl succinate, which is applied in the field of preparation of polybutylene succinate, can solve the problems of high water content of by-products and high tetrahydrofuran production, and achieves a reduction in Maintenance costs, beneficial to industrial production, and the effect of expanding the scope of application
CN102718949AInactive Publication Date: 2012-10-10TANGSHAN XUYANG CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TANGSHAN XUYANG CHEM IND CO LTD
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention provides a preparation method of polybutylene succinate. The preparation method of the polybutylene succinate takes mono-methyl succinate and 1, 4-butanediol as monomers, adopts an efficient compound catalyst system and comprises the following steps: reacting to obtain a PBS (polybutylene succinate) oligomer first and then performing polycondensation reaction to obtain a PBS polymer with a high molecular weight and good color and luster. Through the adoption of the preparation method, on one hand, the problems that in the conventional technology that succinic acid and the 1, 4-butanediol are taken as monomers to prepare the PBS, the speed rate of esterification reaction is low, the succinic acid cannot react completely, and the amount of a generated byproduct tetrahydrofuran is high can be solved; on the other hand, the acidicity of the mono-methyl succinate is less than that of the succinic acid, so that corrosion to equipment is reduced, and thus the maintenance cost of the equipment is reduced and greater contribution is made to industrial production; in addition, a chain extender is not used, the application range of PBS degradable plastic in the field of food packaging can be further expanded.
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Description

technical field

[0001] The present invention relates to a kind of preparation method of polybutylene succinate (PBS), be specifically related to a kind of use monomethyl succinate and 1,4-butanediol as polymerization monomer, adopt high-efficiency composite catalyst system, A method of producing polybutylene succinate by esterification reaction, polycondensation reaction, etc. Background technique

[0002] Polybutylene succinate (PBS) is a very important polymer material in aliphatic polyesters. It has excellent mechanical properties, thermal properties and biodegradability, and is a fundamental solution to the problems caused by traditional polyolefin materials. One of the effective ways to cause the "white pollution" problem, it is widely used in the fields of sheet, plate and film.

[0003] So far, in the technology for preparing polybutylene succinate, there is no public report related to the preparation of PBS with monomethyl succinate and 1,4-butanediol as polymerized...

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
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