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Polyurethane sole resin capable of improving adhesion as well as preparation method and application thereof

A technology for shoe soles and polyurethane is applied in the field of resin and preparation of polyurethane soles, which can solve problems such as degumming of uppers and soles, and achieve the effect of improving the adhesiveness of resins.

Inactive Publication Date: 2021-03-12
SHANGHAI HUIDE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of polyurethane resin for shoe soles with improved adhesiveness and its preparation method and application, focusing on solving the bonding problems such as the degumming of the upper surface and the sole during the subsequent use of similar fast integrated upper shoes, Overcome the defects of existing technology

Method used

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  • Polyurethane sole resin capable of improving adhesion as well as preparation method and application thereof
  • Polyurethane sole resin capable of improving adhesion as well as preparation method and application thereof
  • Polyurethane sole resin capable of improving adhesion as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Preparation of bisphenol A polyether modified polyester polyol P1: 1.584kg of BPA-2EO, 0.365kg of diethylene glycol, 0.213kg of ethylene glycol and 1.460kg of adipic acid were protected under nitrogen and 0.5wt‰ catalyst titanic acid In the presence of tetraisopropyl ester, carry out esterification reaction at 140-200°C, and distill water under normal pressure at the same time, wait for the acid value to drop to 10-20mgKOH / g, carry out polycondensation reaction at 200-240°C, and remove the product by distillation under reduced pressure for 5 hours A trace amount of water to obtain a total of 3.255 kg of bisphenol A polyether modified polyester polyol P1 with an acid value of 0.5 mgKOH / g and a hydroxyl value of 45 mgKOH / g.

[0039] Preparation of isosorbide-modified polyester polyol P2: 0.648kg of isosorbide, 0.353kg of diethylene glycol, 0.207kg of ethylene glycol and 1.460kg of adipic acid under nitrogen protection and 0.5wt‰ catalyst tetraisotitanate In the presence o...

Embodiment 2

[0041] Preparation of bisphenol A polyether modified polyester polyol P3: 1.801kg of BPA-6EO, 0.510kg of diethylene glycol, 0.224kg of ethylene glycol and 1.460kg of adipic acid were protected under nitrogen and 0.5wt‰ catalyst titanic acid In the presence of tetraisopropyl ester, carry out esterification reaction at 140-200°C, and distill water under normal pressure at the same time, wait for the acid value to drop to 10-20mgKOH / g, carry out polycondensation reaction at 200-240°C, and remove the product by distillation under reduced pressure for 5 hours A trace amount of water was obtained to obtain a total of 3.540 kg of bisphenol A polyether modified polyester polyol P3 with an acid value of 0.5 mgKOH / g and a hydroxyl value of 55 mgKOH / g.

[0042] Preparation of isosorbide-modified polyester polyol P4: 0.330kg of isosorbide, 0.499kg of diethylene glycol, 0.280kg of ethylene glycol and 1.460kg of adipic acid were placed under nitrogen protection and 0.5wt‰ catalyst tetraisoti...

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Abstract

The invention discloses polyurethane sole resin capable of improving adhesion. The polyurethane sole resin comprises a resin component A and a resin component B. The invention also discloses a preparation method and application of the material. Two rigid ring structures of bisphenol A and isosorbide are introduced into the material through a chemical synthesis method, so that the resin adhesion isimproved under the condition that the basic physical property of the polyurethane sole material is ensured, and the risk of degumming of parts such as the upper surface of the upper connected with the shoe, an air cushion and the like and the sole can be greatly reduced.

Description

technical field [0001] The invention relates to the field of polyurethane resin preparation, in particular to a resin for polyurethane shoe soles with improved adhesion, a preparation method and application. Background technique [0002] With the development of society, all walks of life have more and more diversified functional requirements for footwear, especially the higher and higher performance requirements for soles. Polyurethane is a new type of polymer material with excellent performance, which has the dual characteristics of plastic and rubber, and is widely used in the shoe industry. Polyurethane soles have the characteristics of light weight, good impact resistance, energy absorption, good cushioning performance, and good wear resistance. [0003] The traditional molding method of shoe soles is usually to mold the outsole or the midsole separately, and then bond the sole and the upper together with an adhesive. The process is relatively complicated and the volati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/32A43B13/04C08G101/00
CPCC08G18/664C08G18/4202C08G18/4252C08G18/4255C08G18/3206A43B13/04
Inventor 钱建中钱洪祥翁祥吴小帆陈哲
Owner SHANGHAI HUIDE TECH CO LTD
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