Polyurethane sole material raw liquid

A shoe sole material, polyurethane technology, applied in the field of polyurethane materials, can solve the problems of lack of material, can not reflect the design texture, large viscosity difference, low pouring pressure, etc., achieve good processing performance, reduce air bubbles, low viscosity effect

Active Publication Date: 2014-02-12
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference in viscosity between A and B components and low pouring pressure, when preparing some soles with complex designs and pa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, the preparation of polyester polyol

[0018] 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.

[0019] The preparation process of polydimer acid ethylene adipate diethylene glycol ester polyol with molecular weight about 1500:

[0020] Add 500g of dimer acid, 1500g of adipic acid, 500g of ethylene glycol, and 500g of diethylene glycol into the reaction kettle in sequence, turn on the stirring, start to heat up, 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), then continue to increase the temperature, and when the temperature rises to about 180°C, switch the nitrogen gas from the...

Embodiment 2

[0031] 1. Synthesis of component A

[0032] In reactor, add molecular weight is about 900 polyethylene adipate diethylene glycol ester polyols 1000g, molecular weight is about 600 polyethylene adipate diethylene glycol ester polyols 2400g, 160g of ethylene glycol, 80g of methyl propylene glycol, 80g of diethylene glycol, 150g of ethylene glycol solution of triethylenediamine, 20g of deionized water, 20g of dimethylsiloxane, 60g of fluidity improving additive; ℃~60℃, stir at high speed for one hour and lower the temperature below 40℃, slowly add 60g of HCFC-141B and stir at low speed for 0.5h to obtain component A.

[0033] 2. Synthesis of component B:

[0034] Raw materials: polyethylene adipate diethylene glycol ester polyol with a molecular weight of about 600 1000g, diisocyanate MDI 1700g, liquefied MDI 300g;

[0035] Add isocyanate and polyethylene adipate diethylene glycol polyol to the reaction kettle in sequence, control the temperature of the reaction kettle at 70°C~...

Embodiment 3

[0037] 1. Synthesis of component A

[0038] In reactor, add molecular weight to be about 2200 polyethylene adipate diethylene glycol ester polyols 1500g, molecular weight about 1200 polyethylene adipate diethylene glycol ester polyols 2500g, 160g of ethylene glycol, 96g of methyl propylene glycol, 128g of diethylene glycol, 120g of ethylene glycol solution of triethylenediamine, 20g of deionized water, 20g of dimethylsiloxane, 100g of fluidity improving additive; ℃~60℃, stir at high speed for one hour and lower the temperature below 40℃, slowly add 60g of HCFC-141B and stir at low speed for 0.5h to obtain component A.

[0039] 2. Synthesis of component B:

[0040] Raw materials: polyethylene adipate diethylene glycol ester polyol with a molecular weight of about 1500 1000g, diisocyanate MDI 1900g, liquefied MDI 100g;

[0041]Add isocyanate and polyethylene adipate diethylene glycol polyol to the reaction kettle in sequence, control the temperature of the reaction kettle at 7...

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PUM

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Abstract

The present invention relates to a polyurethane sole material raw liquid, which comprises a component A and a component B, wherein the component A comprises a foaming agent, a polyester polyol, a chain extender small molecule polyol, a flowability improvement auxiliary agent, a catalyst and a foam stabilizer, and the component B is an isocyanate-terminated prepolymer obtained by carrying out a reaction of excess diphenylmethane diisocyanate (MDI), liquefied MDI and polydiethyleneglycol adipate ethylene glycol polyol. According to the present invention, viscosity of the polyurethane sole material raw liquid during processing is reduced, flowability is increased, generation of bubbles and surface defects during preparation of the molding body with complex pattern design is reduced, and the beautiful surface effect is obtained.

Description

technical field [0001] The invention relates to the field of polyurethane materials, in particular to a polyurethane material used for making shoe soles. Background technique [0002] With the development of society, people's demand for materials is getting higher and higher, and shoes, as ordinary consumer goods, also carry people's higher requirements. In order to meet people's needs, a variety of shoe materials have emerged, among which polyurethane microcellular elastomer is a widely used polymer synthetic material. At present, the domestic use of polyurethane microcellular elastomers to prepare shoe soles mainly adopts the production process of reactive low-pressure casting. The stock solution of shoe sole materials is divided into component A and component B. Foam stabilizer and catalyst are mixed, and the viscosity is high. Component B mainly contains diisocyanate prepolymer, and the viscosity is low. The two are stirred and mixed evenly by the pouring head at high s...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/44C08G18/32C08K9/04C08K3/34A43B13/04C08G101/00
CPCA43B13/04C08G18/10C08G18/3228C08G18/425C08G18/6651C08G2101/00C08G2410/00C08J9/08C08J9/141C08J2203/184C08J2375/06C08K3/346C08K9/04
Inventor 江平吕华波王征宇董博
Owner XUCHUAN CHEM SUZHOU
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