Unlock instant, AI-driven research and patent intelligence for your innovation.

Epoxy-modified polyester acrylate and preparation method thereof

A technology of polyester acrylate and acrylate, which is applied in the field of polyester acrylate, can solve the problems of long preparation time, poor adhesion, slow curing speed, etc., and achieve extremely low curing shrinkage, excellent adhesion and flexibility, The effect of superior comprehensive performance

Inactive Publication Date: 2014-01-15
上海展辰涂料有限公司 +4
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing polyester acrylate preparation process has long preparation time, slow curing speed to a certain extent, and poor adhesion

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Epoxy-modified polyester acrylate and preparation method thereof
  • Epoxy-modified polyester acrylate and preparation method thereof
  • Epoxy-modified polyester acrylate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of UV-cured epoxy-modified polyester acrylate resin:

[0027] 1) Add 60 parts by weight of epoxy resin with a molecular weight of 600 and 30 parts by weight of phthalic anhydride into the reactor, and react at 100°C for 3 hours;

[0028] 2) Add 20 parts by weight of acrylic acid to the reactor, and react at 105°C for 2 hours;

[0029] 3) Add 0.5 parts by weight of triethylamine to the reacted product in step 2), then add 0.8 parts by weight of 2,6-di-tert-butyl-p-cresol under nitrogen protection, and react at a temperature of 111°C for 2 hours ;

[0030] 4) Add 0.1 parts by weight of nitrobenzene to the reacted product in step 3), react at a temperature of 110°C for 2 hours, then add 10 parts by weight of hydroxypropyl acrylate to react for 1 hour, stir and vacuumize to obtain the product.

Embodiment 2

[0032] Preparation of UV-cured epoxy-modified polyester acrylate resin:

[0033] 1) Add 50 parts by weight of epoxy resin with a molecular weight of 600 and 20 parts by weight of phthalic anhydride into the reactor, and react at 105°C for 2 hours;

[0034] 2) Add 40 parts by weight of acrylic acid to the reactor, and react at 108°C for 1.5 hours;

[0035] 3) Add 0.7 parts by weight of triethylamine to the reacted product in step 2), then add 1.2 parts by weight of 2.6-di-tert-butyl-p-cresol under nitrogen protection, and react at a temperature of 112°C for 1.5 hours;

[0036] 4) Add 0.5 parts by weight of nitrobenzene to the reacted product in step 3), react at a temperature of 112°C for 2 hours, then add 30 parts by weight of hydroxypropyl acrylate to react for 1 hour, stir and vacuumize to obtain the product.

Embodiment 3

[0038] Preparation of UV-cured epoxy-modified polyester acrylate resin:

[0039] 1) Add 40 parts by weight of epoxy resin with a molecular weight of 600 and 10 parts by weight of phthalic anhydride into the reactor, and react at 103°C for 2.5 hours;

[0040] 2) Add 20 parts by weight of acrylic acid to the reactor, and react at 110°C for 2 hours;

[0041] 3) Add 1 part by weight of triethylamine to the reacted product in step 2), then add 1.5 parts by weight of 2,6-di-tert-butyl-p-cresol under nitrogen protection, and react at a temperature of 110°C for 2 hours ;

[0042] 4) Add 0.3 parts by weight of nitrobenzene to the reacted product in step 3), react at a temperature of 115°C for 1.5 hours, then add 20 parts by weight of hydroxypropyl acrylate to react for 1 hour, stir and mix and vacuumize to obtain the product .

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
Login to View More

PUM

PropertyMeasurementUnit
acid valueaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an epoxy-modified polyester acrylate and a preparation method thereof, and particularly relates to a polyester acrylate modified by an epoxy group. According to the epoxy-modified polyester acrylate, an acid value is smaller than or equal to 5mg KOH / g; the viscosity is 20000-30000 Mpa.s. Free radical polymerization can be quickly carried out by ultraviolet radiation in coexistence of a photoinitiator, so as to achieve cross-linking solidification. The modified polyester acrylate disclosed by the invention can be applied to preparation of a photocureable coating and photocureable ink, and is suitable for photocuring coating of plastics and papers. Extremely low curing shrinkage rate, and excellent adhesive force and flexibility are provided for an immobilizing membrane; the modified polyester acrylate is photocureable resin with a good prospect and excellent overall performance.

Description

technical field [0001] The invention relates to polyester acrylate, in particular to an epoxy-modified polyester acrylate and a preparation method thereof. Background technique [0002] Ultraviolet (UV) curing is the most widely used curing technology in radiation curing. Compared with traditional natural drying or heat-curing coatings, UV-curing coatings have the characteristics of high energy utilization rate, suitable for heat-sensitive substrates, low pollution, fast film forming speed, high coating film quality and continuous production. With the enhancement of people's awareness of environmental protection and the improvement of coating performance requirements, UV curing coatings have become one of the development trends. Zhang Sainan et al. synthesized a UV-curable rosin-based polyester acrylate prepolymer for coatings by a two-step method, which improved the photocuring speed of polyester acrylate (Thermosetting Resins, 2009, 24(6): 22-25). Yu Lanying et al. used ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/00C09D151/08
Inventor 关存州朱强刘志刚
Owner 上海展辰涂料有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com