Polyethylene terephthalate modified copolyester and preparation method thereof
By introducing specific fragments into polyethylene terephthalate and adopting specific preparation methods, the problems of insufficient heat resistance and transparency of traditional polyethylene terephthalate are solved, and a polyethylene terephthalate modified copolyester with high transparency, high impact strength and good heat resistance are achieved.
CN119708448APending Publication Date: 2025-03-28NANYA PLASTICS CORP
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Patent Information
- Application Number
- CN202311482313.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-27
- Filing Date
- 2023-11-08
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
When used as an engineering plastic, traditional polyethylene terephthalate has insufficient heat resistance and cannot take into account transparency and other problems.
Method used
Polyethylene terephthalate modified copolyester, which includes specific fragments, is prepared by esterification, prepolymerization and vacuum polymerization.
Benefits of technology
It has achieved the polyethylene terephthalate modified copolyester with high transparency, high impact strength and good heat resistance, and is suitable for high temperature environments.
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Abstract
The invention provides polyethylene terephthalate modified copolyester. The polyethylene terephthalate modified copolyester comprises three fragments shown in a fragment 1, a fragment 2 and a fragment 3 in the specification.
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