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

Method for preparing thermoplastic phenolic resin from benzenediol

A technology of phenolic resin and hydroquinone, applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesive types, adhesives, etc., can solve the constraints of development and application, the manufacturing cost of resorcinol resin and the price of products High price, high price of raw material resorcinol, etc., to achieve the effect of reducing raw material cost and wide application

Inactive Publication Date: 2020-06-26
QINGDAO FIHONOR CHEM SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the high price of resorcinol as a raw material, the manufacturing cost and product price of resorcinol resin remain high, which restricts its development and application

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
  • Method for preparing thermoplastic phenolic resin from benzenediol
  • Method for preparing thermoplastic phenolic resin from benzenediol
  • Method for preparing thermoplastic phenolic resin from benzenediol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Embodiment 1, the ratio of raw materials of this embodiment is as shown in Table 1.

[0090] Table 1

[0091] raw material Hydroquinone 37% formaldehyde solution p-Toluenesulfonic acid 48% Sodium Hydroxide Mass % 75.154 24.533 0.226 0.087

[0092] This embodiment includes the following steps: put the quinone mixture into the reaction kettle chemical material, add p-toluenesulfonic acid, add formaldehyde solution dropwise to the reaction kettle under the condition of 95°C to 130°C, and distill at atmospheric pressure after the dropwise addition of formaldehyde is completed After dehydration, add a terminator, vacuum dehydrate, control the temperature between 135°C and 175°C, and granulate and pack. The softening point of the phenolic resin prepared in this embodiment is 113.2° C., the weight loss by heating is 0.11%, and the ash content is 0.05%.

Embodiment 2

[0093] Embodiment 2, the ratio of raw materials of this embodiment is as shown in Table 2.

[0094] Table 2

[0095]

[0096]

[0097] This embodiment includes the following steps: put the diphenol mixture and phenol into the reaction kettle as the chemical material, add p-toluenesulfonic acid, and add the formaldehyde solution dropwise to the reaction kettle under the condition of 95°C to 130°C. After pressure distillation and dehydration, add a terminator, vacuum dehydrate, control the temperature between 135°C and 175°C, and then granulate and pack. The softening point of the phenolic resin prepared in this embodiment is 104.6°C, the weight loss by heating is 0.18%, and the ash content is 0.03%.

Embodiment 3

[0098] Embodiment 3, the ratio of raw materials of this embodiment is as shown in Table 3

[0099] table 3

[0100]

[0101] This embodiment includes the following steps: put quinone into the reaction kettle chemical material, add p-toluenesulfonic acid, and add styrene dropwise to the reaction kettle under the condition of 120°C to 135°C, after the addition of styrene is completed, the temperature is raised Mature, cool down, put in p-tert-butylphenol, add formaldehyde solution dropwise to the reaction kettle under the condition of 140°C to 155°C, after the dropwise addition of formaldehyde is completed, after atmospheric distillation and dehydration, add terminator, vacuum dehydration, The temperature is controlled between 135°C and 175°C, granulated and packaged. The softening point of the phenolic resin prepared in this embodiment is 107.4° C., the weight loss by heating is 0.08%, and the ash content is 0.02%.

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
Softening pointaaaaaaaaaa
Softening pointaaaaaaaaaa
Softening pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparing thermoplastic phenolic resin from benzenediol. The preparation method comprises the following steps: directly polymerizing benzenediol and formaldehyde, or mixing benzenediol with different types of phenols, polymerizing with formaldehyde, or styrenating benzenediol, or polymerizing with formaldehyde, or mixing benzenediol with different types of phenols, polymerizing with formaldehyde, and modifying with bio-oil to prepare different types of thermoplastic phenolic resin. The method disclosed by the invention is wide in raw material source, relatively low in cost and wide in product application, is particularly suitable for enhancing the bonding performance of the rubber and the cord thread, and has relatively great development potential and awide application prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer resins, and relates to a method for preparing thermoplastic phenolic resins by using hydroquinone. Background technique [0002] Generally, the resin formed by polycondensation of phenolic compounds and aldehyde compounds is called phenolic resin. Phenolic resin has a long history of development, easy to obtain raw materials, and low cost. After curing, the product has good heat resistance and mechanical properties, and the performance is stable. As one of the most important synthetic resins today, phenolic resins are widely used in transportation, construction, mining, electronics, electrical, transportation, military and many other fields. [0003] For rubber products, the bonding performance of rubber to steel wire, nylon, polyester cord and other skeleton materials is crucial to its service life. In order to improve the adhesive performance, the most traditional and effective adhesive system ...

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): C08G8/30C08G8/28C08G8/20C08G8/22C09J161/14
CPCC08G8/20C08G8/22C08G8/28C08G8/30C09J161/14
Inventor 傅秀成孙彬宋玉
Owner QINGDAO FIHONOR CHEM SCI & TECH
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