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High-processability polyurethane shoe sole material stock solution

A sole material, polyurethane technology, applied in the directions of soles, footwear, applications, etc., can solve the problems of difficult processing of the sole surface, decreased sole hardness, and increased production costs, and achieves good toughness, shape stability, and is not easy to deform and damage Effect

Active Publication Date: 2014-12-24
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And these follow-up treatment processes all can come into contact with a large amount of solvents, and existing polyurethane sole material density is 0.27g / cm 3 The internal structure of the above-mentioned low-density polyurethane sole with a hardness of Shore A 95° has many micropores, which are easily deformed and damaged by solvent corrosion, and the surface of the sole is not easy to be processed. Heavier sole materials will increase the production cost, and the comfort of the shoes will be poor, and the hardness of the soles will decrease significantly with the increase of temperature, and the soles will lack toughness, and the prepared shoes will be easily deformed and damaged when worn.

Method used

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  • High-processability polyurethane shoe sole material stock solution

Examples

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preparation example Construction

[0029] The preparation of polyester polyol can adopt the conventional preparation method of polyester polyol, and in this embodiment, nitrogen depressurization method is used for preparation.

[0030] The preparation process of the polyethylene glycol adipate diethylene glycol succinate adipate polyol that the number average molecular weight is 1500:

[0031] Add 500g of succinic acid, 1000g of adipic acid, 550g of ethylene glycol, and 450g of diethylene glycol into the reaction kettle in sequence, turn on the stirring, start to raise the temperature, and at the same time, feed nitrogen into the upper part of the reaction kettle, and keep the temperature constant when the temperature rises to 135-140°C Stabilize the dehydration rate for 1 hour (through the rectification tower, the temperature at the top of the tower is maintained at <102°C) and then continue to increase the temperature. When the temperature rises to about 180°C, nitrogen is switched from the lower part of the r...

Embodiment 1

[0041] 1. Synthesis of component A

[0042] In the reactor, adding number average molecular weight is 700 polyethylene adipate diethylene glycol glyceride polyol 1000g, number average molecular weight is 1200 polyphthalic anhydride glycol diethylene glycol adipate polyol 600g , polyethylene adipate diethylene glycol trimethylol propane polyol 400g, number average molecular weight being 2000g of polyethylene adipate diethylene glycol trimethylol propane polyol 2000 with number average molecular weight of 900, Ethylene glycol 600g, glycerin 200g, trimethylolpropane 60g, triethylenediamine ethylene glycol solution 50g, deionized water 20g, dimethylsiloxane 20g; heat up to 50-60°C, stir at high speed for one hour Then lower the temperature below 40°C, slowly add 70g of HCFC-141B, and then stir at a low speed for 0.5h to obtain component A.

[0043] 2. Synthesis of component B:

[0044] Raw materials: the polyethylene adipate diethylene glycol succinate polyol 400g with a number ...

Embodiment 2

[0047] 1. Synthesis of component A

[0048] In reactor, adding number average molecular weight is the polyethylene adipate diethylene glycol glyceride polyol 500g that number average molecular weight is 2000 polyethylene adipate diethylene glycol glyceride polyol 2200g, number average molecular weight is 600, Number-average molecular weight is 800 polyethylene adipate diethylene glycol trimethylol propane polyols 300g, number-average molecular weight is 1800 polyphthalic anhydride diethylene adipate diethylene glycol ester polyols 1000g, 400g of ethylene glycol, 100g of glycerin, 70g of ethylene glycol solution of triethylenediamine, 15g of deionized water, and 20g of dimethylsiloxane; heat up to 50°C-60°C, stir at high speed for one hour and then lower the temperature to 40°C Below ℃, slowly add 100g of HCFC-141B and stir at a low speed for 0.5h to obtain component A.

[0049] 2. Synthesis of component B:

[0050] Raw materials: 300 g of polyethylene succinate adipate dieth...

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Abstract

The invention discloses a high-processability polyurethane shoe sole material stock solution which comprises a component A and a component B, wherein the component A is prepared from polyester polyol, a chain extender, a catalyst, a foaming agent and a foam stabilizer; the polyester polyol is composed of polyadipic acid ethylene glycol diglycol ester polyalcohol, polyadipic acid ethylene glycol diethylene glycol glyceride polyalcohol and polyphenylene anhydride adipic acid ethylene glycol diglycol ester polyalcohol; and the component B is an isocyanate-terminated prepolymer prepared by reacting isocyanate with polyadipic acid ethylene glycol diglycol ester polyalcohol, polysuccinic acid adipic acid ethylene glycol diglycol ester polyalcohol and polyether glycol. The shoe sole prepared from the high-processability polyurethane shoe sole material stock solution can be used for preparing the shoe sole with higher hardness under low density conditions; and the prepared shoe sole is convenient for subsequent processing, has favorable toughness, can not be easily deformed or damaged, and is comfortable to wear.

Description

technical field [0001] The invention relates to a stock solution of easy-to-process polyurethane shoe sole material. Background technique [0002] As a new multifunctional polymer material, polyurethane is a high-tech, high-performance, high-value-added product. It has superior physical and mechanical properties, acid and alkali corrosion resistance, high load-bearing performance, and a wide range of hardness. It is widely used in the material industry. Occupying an important position, it has become one of the mainstream materials in the sole market. [0003] Polyurethane sole stock solution can be divided into two categories: polyester type and polyether type according to the type of polyol used. Polyester polyurethane has good mechanical properties, polyether type has strong low temperature resistance, mildew resistance, good durability, and lower cost than polyester type, especially in terms of hydrolysis stability, polyether type is more The polyester type has outstand...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/42C08G18/48C08G18/32C08G18/12C08J9/14C08J9/08A43B13/04
CPCA43B13/04C08G18/3206C08G18/4018C08G18/4202C08G18/425C08G18/48C08G18/6607C08G18/6611C08J9/146C08J2375/04
Inventor 董博
Owner XUCHUAN CHEM SUZHOU
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