Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Propylenyl pimaric acid diglycidic ester and its epoxy resin and their preparation

A technology of diglycidyl ester and propylene pimaric acid, applied in the directions of water-based dispersants, etc., achieves the effects of broad application prospects, simple preparation method and high epoxy value

Inactive Publication Date: 2003-06-25
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general-purpose bisphenol A epoxy resin can no longer meet the needs of modern industrial development.

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
  • Propylenyl pimaric acid diglycidic ester and its epoxy resin and their preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of Propylene Pimaric Acid Diglycidyl Ester:

[0027] In a 100ml reactor, add 3.74g (10mmol) of propylene pimaric acid, 1.87g (20mmol) of epichlorohydrin and 3.74g (27mmol) of potassium carbonate, and 0.0187g (0.07mmol) of 18-crown-6 ether, 80ml of acetone , heated to 55-60°C to reflux, and reacted for 60 hours. After cooling, the solvent was removed under reduced pressure with a rotary evaporator. Add 15ml of toluene to dissolve, wash with distilled water several times, vibrate, stand still, separate layers, and then use silver nitrate to check that there is no chloride ion in the water layer. Collect the toluene layer, dry it over anhydrous magnesium sulfate, remove the solvent with a rotary evaporator, and dry it in vacuum at 80°C for 3 to 4 hours to obtain a yellow viscous resin with an epoxy value of 0.38 and a chlorine content of 0.036% (molar content); After recrystallization from alkane and acetone, diglycidyl propylene pimarate was obtained as a wh...

Embodiment 2

[0029] Preparation of Propylene Pimaric Acid Diglycidyl Ester:

[0030] In the 100ml reactor, add 3.74g (10mmol) propylene pimaric acid, 2.24g (24mmol) epichlorohydrin and 4.11g (30mmol) potassium bicarbonate, and 0.075g (0.28mmol) tetrabutylammonium bromide, 70ml of acetone was heated to reflux at 55-60°C and reacted for 70 hours. After cooling, the solvent was removed under reduced pressure with a rotary evaporator. Add 20ml of toluene to dissolve, wash with distilled water several times, vibrate, stand still, and separate layers, then use silver nitrate to check that there is no chloride ion in the water layer. Collect the toluene layer, dry it over anhydrous magnesium sulfate, remove the solvent with a rotary evaporator, and dry it in vacuum at 80°C for 3 to 4 hours to obtain a yellow viscous resin with an epoxy value of 0.385 and a chlorine content of 0.042% (molar content); After recrystallization with acetone, propylene pimaric acid diglycidyl ester is obtained as a w...

Embodiment 3

[0032] Preparation of Propylene Pimaric Acid Diglycidyl Ester:

[0033] In a 100ml reactor, add 3.74g (10mmol) of acrylpimaric acid, 3.0g (32mmol) of epichlorohydrin and 4.49g (34mmol) of potassium carbonate, and 0.15g (0.56mmol) of 18-crown-6 ether, 60ml Butanone, heated to 75-80°C, reacted for 80 hours. After cooling, the solvent was removed under reduced pressure with a rotary evaporator. Add 20ml of toluene to dissolve, wash with distilled water several times, vibrate, stand still, and separate layers, then use silver nitrate to check that there is no chloride ion in the water layer. Collect the toluene layer, dry it over anhydrous magnesium sulfate, remove the solvent with a rotary evaporator, and dry it in vacuum at 80°C for 3 to 4 hours to obtain a yellow viscous resin with an epoxy value of 0.39 and a chlorine content of 0.03% (molar content); column chromatography After recrystallization with n-hexane and acetone, propylene pimarate diglycidyl ester was obtained as ...

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

No PUM Login to View More

Abstract

The present invention relates to modified rosin and is propylenyl pimaric acid diglycidic ester and acrylic acid modified rosin epoxy resin containing propylenyl pimaric acid diglycidic ester in 40-100 wt%. The present invention also provides their preparation process. The propylenyl pimaric acid diglycidic ester and acrylic acid modified rosin epoxy resin are prepared with cheap natural material and are new environment friendly adhesive material with high epoxide number. The may be used also as the intermediate for preparing rosin surfactant, and has simple preparation process easy to use in industry.

Description

technical field [0001] The invention relates to the field of modified rosin, in particular to propylene pimarate diglycidyl ester, propylene pimarate diglycidyl ester type acrylic modified rosin epoxy resin and their preparation methods. technical background [0002] my country's rosin is rich in resources and low in price. It is the basic raw material of the chemical industry and is widely used in coatings, inks, synthetic rubber, papermaking, soap, metal processing and other industries. Epoxy resin (epoxy resin) has been widely used in coatings, electronic appliances, composite materials and adhesive industries because of its unique electrical properties, mechanical properties, corrosion resistance and chemical stability, and has become a fast-growing industry in recent years. A class of thermosetting resins. However, the general-purpose bisphenol A epoxy resin can no longer meet the needs of modern industrial development. The development of new e...

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
IPC IPC(8): C09G1/04
Inventor 曹德榕魏晓惠
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com