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Water-soluble unsaturated polyester and photocurable composition

An unsaturated, water-soluble technology, applied in polyester coatings, textiles and papermaking, coatings, etc., can solve the problems of high cost, weak initiation efficiency, unsatisfactory coating performance, etc., to achieve inhibition of hydrolysis, high initiation Efficiency, excellent water solubility

Active Publication Date: 2018-05-18
GUANGZHOU KINTE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of water-based photoinitiators is generally high at present, the initiation efficiency is relatively weak, and the performance of the cured coating is not satisfactory.

Method used

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  • Water-soluble unsaturated polyester and photocurable composition
  • Water-soluble unsaturated polyester and photocurable composition
  • Water-soluble unsaturated polyester and photocurable composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The water-soluble unsaturated polyester provided in this embodiment is mainly made of the following raw materials in parts by mass:

[0060]

[0061] Its synthesis method is as follows:

[0062] (1) Carry out bulk melt esterification reaction of isophthalic acid-5-sodium sulfonate and raw material A under a catalyst and an inert atmosphere. After the system is heated up to form esterified water, the temperature is slowly raised to 180-190°C and kept for 1-2 hour to obtain a hydrolysis-resistant water-soluble oligomer with an acid value of 25 mgKOH / g;

[0063] (2) The hydrolysis-resistant water-soluble oligomer in step (1) is cooled to below 130°C, and raw material B, raw material C, raw material D, raw material E and polymerization inhibitor are added according to the dosage relationship, and the temperature is raised to the reaction system to produce esterification After soaking in water, slowly raise the temperature to 200-210°C and keep it warm for 1-2 hours, the...

Embodiment 2

[0083] The water-soluble unsaturated polyester provided in this embodiment is mainly made of the following raw materials in parts by mass:

[0084]

[0085] Its synthesis method is as follows:

[0086] (1) Carry out bulk melt esterification reaction of isophthalic acid-5-sodium sulfonate and raw material A under a catalyst and an inert atmosphere. After the system is heated up to form esterified water, the temperature is slowly raised to 180-190°C and kept for 1-2 hour to obtain a hydrolysis-resistant water-soluble oligomer with an acid value of 25 mgKOH / g;

[0087] (2) The hydrolysis-resistant water-soluble oligomer in step (1) is cooled to below 130° C., raw material B, raw material C, raw material D, raw material E and a polymerization inhibitor are added, and the temperature is raised until the reaction system produces esterified water, Slowly raise the temperature to 200-210°C and keep it warm for 1-2 hours, then cool it down to 150-160°C and keep it warm for 1-2 hour...

Embodiment 3

[0093] The water-soluble unsaturated polyester provided in this embodiment is mainly made of the following raw materials in parts by mass:

[0094]

[0095] Its synthesis method is as follows:

[0096] (1) Carry out bulk melt esterification reaction of isophthalic acid-5-sodium sulfonate and raw material A under a catalyst and an inert atmosphere. After the system is heated up to form esterified water, the temperature is slowly raised to 180-190°C and kept for 1-2 hour to obtain a hydrolysis-resistant water-soluble oligomer with an acid value of 24mgKOH / g;

[0097] (2) The hydrolysis-resistant water-soluble oligomer in step (1) is cooled to below 130° C., raw material B, raw material C, raw material D, raw material E and a polymerization inhibitor are added, and the temperature is raised until the reaction system produces esterified water, Slowly raise the temperature to 200-210°C and keep it warm for 1-2 hours, then cool down to 150-160°C and keep it warm for 1-2 hours un...

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Abstract

The invention discloses water-soluble unsaturated polyester. The water-soluble unsaturated polyester is mainly prepared from the following raw materials: monosodium 5-sulfoisophthalate, a raw materialA, a raw material B, a raw material C, a raw material D, a raw material E, glycidyl methacrylate, a catalyst and a polymerization inhibitor, wherein the raw material A is saturated diol with steric hindrance effect; the raw material B is beta-olefinic unsaturated dicarboxylic acid and / or anhydride thereof; the raw material C is saturated polyol with three components or more; the raw material D isC4-C8 saturated diol except the raw material A; and the raw material E is C2-C12 aliphatic diacid. The invention also discloses a preparation method for the water-soluble unsaturated polyester, an aqueous dispersion containing the water-soluble unsaturated polyester, a photoinitiator stabilizing emulsion, a photocurable composition and a photocurable paint.

Description

technical field [0001] The invention belongs to the field of photocurable coatings, and in particular relates to a water-soluble unsaturated polyester and a photocurable composition, and also relates to a preparation method of the water-soluble unsaturated polyester and the photocurable composition. Background technique [0002] Light-curing coatings have the advantages of fast curing, energy saving and high efficiency. The cured coating has high hardness, good wear resistance and corrosion resistance. It is suitable for heat-sensitive materials such as furniture, wood, plastic products, and paper substrates. It can also be applied to metal components and automotive coatings. and other fields. The film-forming resin of traditional UV-curable coatings is an unsaturated prepolymer with a low molecular weight, and a reactive diluent is used to adjust the viscosity and rheology of the system. It is difficult to balance the hardness and flexibility of the cured coating. The stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/688C08G63/85C08G63/91C09D167/06C09D7/65C09D7/47D21H19/28
CPCC08G63/6884C08G63/85C08G63/914C08L2205/035C09D5/18C09D167/06D21H19/28C08L83/04C08L33/04C08L83/12
Inventor 陆均杰许振阳顾宇昕梁志健陈唯胡百九
Owner GUANGZHOU KINTE IND
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