Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of polyether polyol having function of improving hardness and strength of soles

A polyether polyol, strength technology, applied in the field of polyether polyol preparation, can solve the problems of reducing the hardness and strength of shoe soles, achieve the effect of improving hardness and strength, and improving comprehensive mechanical properties

Active Publication Date: 2020-03-17
SHANDONG BLUSR DONGDA CHEM
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding polyether polyols to polyester polyols will reduce the hardness and strength of shoe soles. How to solve this problem has become a problem facing many shoe manufacturers.

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
  • Preparation method of polyether polyol having function of improving hardness and strength of soles
  • Preparation method of polyether polyol having function of improving hardness and strength of soles
  • Preparation method of polyether polyol having function of improving hardness and strength of soles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 228g of bisphenol A and 9g of solid potassium hydroxide catalyst into a 5L stainless steel reactor, replace with nitrogen, and measure the oxygen content in the reactor to be less than 80ppm. The temperature of the reaction kettle was raised to 105° C., and dehydration under reduced pressure was carried out by nitrogen bubbling. Keep the temperature in the kettle at 110±2°C and the pressure at 0.2±0.2MPa, continuously add 2273g of propylene oxide, and then react under internal pressure for 30 minutes to remove unreacted propylene oxide. Then slowly add 499g of ethylene oxide, carry out end-capping polymerization at 130°C, react under internal pressure for 30 minutes, cool down and discharge the material to obtain the crude polyether polyol of the present invention that has the effect of improving the hardness and strength of the shoe sole. things. Subsequently, the above-mentioned polyether polyol crude polymer is subjected to neutralization, adsorption, crystalliz...

Embodiment 2

[0027] Add 250g of bisphenol S and 9g of solid potassium hydroxide catalyst into a 5L stainless steel reactor, replace with nitrogen, and measure the oxygen content in the reactor to be less than 80ppm. The temperature of the reaction kettle was raised to 105° C., and dehydration under reduced pressure was carried out by nitrogen bubbling. Keep the temperature in the kettle at 82±2°C and the pressure at 0.2±0.2MPa, continuously add 2255g of propylene oxide, and carry out internal pressure reaction to remove unreacted propylene oxide. Then add 495g of ethylene oxide, carry out end-blocking polymerization at 130° C., and carry out internal pressure reaction to obtain the crude polymer of the polyether polyol described in the present invention, which has the function of improving the hardness and strength of shoe soles. Subsequently, the above-mentioned polyether polyol crude polymer is subjected to neutralization, adsorption, crystallization, filtration and refining treatment, a...

Embodiment 3

[0029] Add 106g of hydroquinone and 9g of solid potassium hydroxide catalyst in a 5L stainless steel reactor, replace with nitrogen, and measure the oxygen content in the reactor to be lower than 80ppm. The temperature of the reaction kettle was raised to 105° C., and dehydration under reduced pressure was carried out by nitrogen bubbling. Keep the temperature in the kettle at 138±2°C and the pressure at 0.2±0.2MPa, continuously add 2373g of propylene oxide, and carry out internal pressure reaction to remove unreacted propylene oxide. Then add 521g of ethylene oxide, carry out end-blocking polymerization at 130° C., and carry out internal pressure reaction to obtain the crude polymer of the polyether polyol described in the present invention which has the effect of improving the hardness and strength of shoe soles. Subsequently, the above-mentioned polyether polyol crude polymer is subjected to neutralization, adsorption, crystallization, filtration and refining treatment, and...

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
Number average molecular weightaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of polyether polyol preparation, and in particular, relates to a preparation method of polyether polyol having a function of improving the hardness and strength of soles. The preparation method comprises the following steps: (1) by taking a benzene ring-containing compound as an initiator and an alkali metal as a catalyst, carrying out a polymerizationreaction on the benzene ring-containing compound and alkylene oxide under the pressure of 0-0.4 MPa and at the temperature of 80-140 DEG C to prepare a high-activity polyether polyol crude polymer; and (2) refining the prepared high-activity polyether polyol crude polymer to obtain the polyether polyol having the function of improving the hardness and strength of the soles, wherein the benzene ring-containing compound is one or more of bisphenol A, bisphenol S, catechol, resorcinol or hydroquinone. According to the invention, rigid groups are introduced into the molecular structure of the polyether polyol, and the contents and distribution modes of ethylene oxide and propylene oxide in the molecules are regulated and controlled at the same time, so that the hardness and strength of sole products can be remarkably improved, and finally, the comprehensive mechanical properties of the soles are improved.

Description

technical field [0001] The invention belongs to the technical field of polyether polyol preparation, and in particular relates to a preparation method of polyether polyol capable of improving the hardness and strength of shoe soles. Background technique [0002] Polyurethane microcellular foams have been used as sole materials since the late 1960s. Due to its characteristics of wear resistance, light weight, shock absorption, non-slip, flex resistance, and easy processing, polyurethane sole materials have achieved considerable development. At present, polyurethane soles are not only used in daily life shoes (such as casual shoes, sandals, etc.), but also widely used in work shoes, protective safety shoes, sports shoes (such as golf shoes, baseball shoes, football shoes and ski shoes, etc.). [0003] Polyol is one of the main raw materials for the production of polyurethane soles. It is mainly divided into two categories, one is polyurethane polyol and the other is polyether...

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): C08G65/28C08G18/48C08J9/08A43B13/04C08G101/00
CPCC08G65/2612C08G65/2648C08G65/2636C08G18/4837A43B13/04C08G2410/00C08G2110/0083
Inventor 侯沛东郭辉张成张涛贾世谦
Owner SHANDONG BLUSR DONGDA CHEM
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