Preparation method of bio-based polymer as well as product and application of bio-based polymer

CN119463151APending Publication Date: 2025-02-18HANGZHOU TRANSFAR FINE CHEM CO LTD +2
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Patent Information

Application Number
CN202411607125.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The prior art is prone to problems such as color flowers, color points and difficulty in repairing during the polyester dyeing process, and the existing uniform dyeing agent performance is difficult to meet the diverse polyester dyeing scene needs.

Method used

By optimizing the preparation method of bio-based polymers, compounds of formula II and formula III of specific structures are added for polymerization, and esterification is carried out with poly12-hydroxystearic acid to obtain biological with improved emulsification and dispersion properties and plasticization effects. base polymer.

Benefits of technology

It improves the emulsification dispersion and stability of polyester dyeing, enhances the dye transfer and slow dyeing performance of dyes, avoids the generation of color flowers and color points, and improves the dyeing effect and one-time success rate.

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Abstract

The invention belongs to the field of textiles, and particularly discloses a preparation method of a bio-based polymer and a product and application of the bio-based polymer. The preparation method comprises the following steps: S1, sequentially carrying out polymerization reaction on 1 part by mole of a compound as shown in a formula II, 4a parts by mole of epoxypropane, 4b parts by mole of ethylene oxide and 4c parts by mole of epoxypropane under the catalysis of a first catalyst to obtain 1 part by mole of a compound as shown in a formula III; and S2, at the temperature of 165-250 DEG C, carrying out esterification reaction on 1 part by mole of the compound shown in the formula III and 2 parts by mole of poly-12-hydroxystearic acid under the catalysis of a second catalyst to obtain the bio-based polymer, wherein a is 3-8, b is 10-22, c is 0-6, and RT is C8-C20 saturated or unsaturated alkyl; the polymerization degree of the poly (12-hydroxystearic acid) is 1 to 3.
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Citation Information

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