Method for anhydride modified melamine resin

A technology for modifying melamine resin and acid anhydride, which is applied in the field of producing foam materials, and can solve problems such as the inability to obtain foam

Inactive Publication Date: 2013-04-03
乌鲁木齐益好天成新型节能材料有限公司 +1
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, closed-cell foam with a certain rigidity cannot be obtained

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0004] Example 1: Put 3000g of melamine and 3000g of maleic anhydride into a 10-liter high-mixer, feed circulating nitrogen, start stirring, stop heating when the temperature rises to 90 degrees Celsius, and continue stirring when the temperature rises to 150 degrees Celsius. Mix, 20 degrees centigrade cold water cools down side, and whole process 50 minutes, obtain light yellow powder 5870g. Put 10Kg of 36% industrial formaldehyde into the reactor, adjust the pH to 9 with 30% sodium hydroxide solution, start stirring, put the obtained 5870g light yellow powder into the reactor and start heating to 85 degrees Celsius, stop heating and cool down to 72 degrees Celsius and keep warm 8 hours. A colorless and transparent anhydride-modified melamine resin was obtained.

[0005] Take 200g of the above-mentioned anhydride-modified melamine resin, add K12 emulsifier 1.5g formic acid curing agent 4g pentane foaming agent 1g and stir quickly, put it into a microwave oven with a power of...

example 2

[0006] Example 2: Put 3,000g of melamine into a 10-liter high-mixer, feed in circulating nitrogen, start stirring, slowly add 3,000g of acetic anhydride, then start heating, stop heating when the temperature rises to 90 degrees Celsius, continue stirring, and put in Low mixing, 20 degrees Celsius cooling water release, the whole process is 55 minutes, to obtain 5900g of white powder. Put 20Kg of 36% industrial formaldehyde into the reactor, adjust the pH to 9 with 30% sodium hydroxide solution, start stirring, put 5900g of white powder and 6000g of melamine into the reactor at the same time, start heating to 85 degrees Celsius, stop heating and cool down to 72 Incubate for 8 hours after deg C. A colorless and transparent anhydride-modified melamine resin was obtained.

[0007] Take 200g of the above-mentioned anhydride-modified melamine resin, add OP-10 emulsifier 3g formic acid curing agent 4g pentane foaming agent 5g and stir rapidly, put it into a microwave oven with a pow...

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 invention provides a method for an anhydride modified melamine resin. The method is free from catalysts, solvents and purification. By adopting the method, the controllable reaction for one-substitution to three-substitution can be realized, and the anhydride modified melamine resin can be directly produced in a one-step way.

Description

technical field [0001] The invention relates to a method for acid anhydride modified melamine resin, which is used for producing foam material. Background technique [0002] Aiming at the fragility of melamine resin used in foam production, US6307046, 200510090795.0, and 200910265033.8 respectively proposed methods of modifying melamine with alcohol ammonia or aminopolyol, which effectively changed its fragility and produced soft open-cell foam. However, a closed-cell foam with a certain rigidity cannot be obtained. Anhydride-modified melamine has obvious advantages such as simple process, high efficiency, no catalyst, no solvent, no post-treatment, etc., and can produce rigid foam materials with adjustable opening and closing cells. Contents of the invention [0003] The purpose of the present invention is to provide a method for acid anhydride modified melamine resin. The process steps are simple and reasonable, and can realize the controllable reaction from one substit...

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): C08G12/40C08G12/32C08L61/32C08J9/14
Inventor 李森立周杰龚小平
Owner 乌鲁木齐益好天成新型节能材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap