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

Preparation method of phosphorus-modified phenolic resin

A technology of phenolic resin and phosphorus modification, which is applied in chemical instruments and methods, compounds of group 5/15 elements of the periodic table, organic chemistry, etc., to achieve excellent film-forming stability, reduce environmental pollution, and excellent coating performance Effect

Inactive Publication Date: 2013-12-18
梁劲捷
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a preparation method of phosphorus-modified phenolic resin, which solves the problem of completely relying on imported phosphorus-modified phenolic resin in the past

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

Embodiment Construction

[0021] Table 1, table 2, table 3, table 4 are the reaction raw material components and reaction conditions in embodiment 1~embodiment 20, wherein the phenol described in embodiment 1~embodiment 20 is p-tertoctylphenol, Mixed phenol of bisphenol A and p-tert-butylphenol.

[0022] In conjunction with the reaction raw material components and reaction conditions that table 1, table 2, table 3, table 4 provide, prepare according to the following preparation steps:

[0023] A. Take phenol, formaldehyde and water and add them into a four-necked flask and mix them evenly, then add a catalyst and mix them evenly, put the four-necked flask into an electric heating mantle and heat for condensation reaction to obtain a phenolic condensate, release it after cooling down, and separate it residual moisture;

[0024] B. Add the phenolic condensate obtained in step A back into the four-necked bottle, add monohydric alcohol and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and mix evenly,...

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 discloses a preparation method of a phosphorus-modified phenolic resin, which comprises the following steps: performing polycondensation on p-tert-octylphenol, bisphenol A, paratert-butyl phenol and formaldehyde under the action of a catalyst to obtain a phenolic condensation intermediate; and reacting the intermediate with monohydroxy alcohols and organic phosphorus heterocyclic compounds at a preset temperature for preset time under catalytic conditions to prepare the phosphorus-modified phenolic resin. The method solves the problem of complete dependency on the phosphorus-modified phenolic resin imported from abroad in the past, and enhances the heat resistance, binding strength, peel strength, favorable space size, excellent electric properties, mechanical strength and other physicochemical performance indexes of the original phosphorus-modified phenolic resin, so that the phosphorus-modified phenolic resin has relatively good application properties when being applied to the field of electronic chemicals.

Description

technical field [0001] The invention belongs to the field of phosphorus-modified epoxy resins, and in particular relates to a preparation method of phosphorus-modified phenolic resins. Background technique [0002] At present, domestic phosphorus-modified resin systems are limited to phosphorus-modified epoxy resin systems, which are mainly used in the coating field of electronic sealing coatings. In recent years, with the continuous improvement of application requirements and application performance in the coating field, higher requirements have been put forward for the physical and chemical application performance parameters of phosphorus-modified epoxy resin curing agents. Oxygen resins can no longer meet the application requirements of this high-end field of electronic coating. In response to the special needs of the market, in the United States at the beginning of the 20th century, some international large chemical companies began to explore the use of organophosphorus ...

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): C07F9/6574C08G59/62
Inventor 关炽昌刘涛
Owner 梁劲捷
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