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Polyurea based polyol, preparation method, polyether shoe sole stock solution and preparation method

A polyether polyol and polyol technology, which is applied to shoe soles, footwear, applications, etc., can solve the problems of increasing construction amount, affecting the service life of shoe soles, poor water resistance, etc., and achieving the effect of good wear resistance.

Pending Publication Date: 2019-09-13
WANHUA CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical properties of polyurethane products can be improved by introducing dimer acid polyester polyols with long molecular chains into component B, but the ester groups in the system will still be hydrolyzed under hot and humid conditions, thus affecting the service life of shoe soles
[0004] Chinese patent CN20110370312 discloses a stock solution of polyester polyurethane shoe sole, which is composed of component A and component B. The components of component A are: polyester polyol, chain extender, foaming agent, composite catalyst A , foam stabilizer, composite additives; the B component is made by prepolymerization of isocyanate and polyester polyol with a mass ratio of 100:60-70; the polyester sole made of the polyester polyol has a relatively high Good tear strength, but the patent does not mention hydrolysis resistance, there are a lot of ester groups in the polyester sole system, it is speculated that the water resistance is slightly poor
In this patent, the catalyst body series is divided into one component alone, which increases the amount of construction, and the polyester polyol and polyether polyol are used together, which will also make it difficult to combine the tear resistance, wear resistance and poly The low-temperature flexibility and hydrolysis resistance of the ether-type sole solution are effectively combined

Method used

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  • Polyurea based polyol, preparation method, polyether shoe sole stock solution and preparation method
  • Polyurea based polyol, preparation method, polyether shoe sole stock solution and preparation method
  • Polyurea based polyol, preparation method, polyether shoe sole stock solution and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Preparation of polyurea-based polyols:

[0058] equipped with stirrer, thermometer and N 2 Add 12.68 parts of 4,4'-diaminodicyclohexylmethane to the reaction kettle of the air pipeline, and then add 15.69 parts of butyl glycidyl ether dropwise to the reaction kettle under stirring at 60°C. The reaction was continued for 4 h under the protection of nitrogen to obtain a polyol containing secondary amino groups. Then equipped with stirrer, thermometer and N 2 Add 5.07 parts of HDI to the reaction kettle of the air pipeline, and then slowly add the above-mentioned polyol containing secondary amino groups dropwise into the reaction kettle at 30°C with a stirring speed of 100 r / min, and continue the reaction for 4 hours after the dropwise addition is completed, to obtain Polyurea-based polyol (nuclear magnetic structure analysis such as figure 1 , δ=2.4 (a place), 3.0 (b place) epoxy group peak disappears, δ=2.9 ether bond peak appears, indicating the generation of polyure...

Embodiment 2

[0068] Preparation of polyurea-based polyols:

[0069] equipped with stirrer, thermometer and N 2 Add 33.51 parts of polyetheramine 8100 to the reaction kettle in the gas pipeline, then add 33.85 parts of isopropyl glycidyl ether dropwise into the reaction kettle under stirring at 40°C, and continue the reaction for 3 hours under the protection of nitrogen after the dropping , to obtain polyols containing secondary amino groups. Then equipped with stirrer, thermometer and N 2 Add 16.2 parts of IPDI to the reaction kettle of the air pipeline, and then slowly add the above-mentioned polyol containing secondary amino groups dropwise into the reaction kettle at 15°C with a stirring speed of 300r / min, and continue the reaction for 3 hours after the dropwise addition is completed, to obtain Polyurea-based polyol (nuclear magnetic structure analysis such as figure 2 , δ=2.4, 3.0 place epoxy group peak disappears, δ=2.9 place ether bond peak appears, illustrates the generation of ...

Embodiment 3

[0079] Preparation of polyurea-based polyols:

[0080] equipped with stirrer, thermometer and N 2 Add 16.76 parts of polyetheramine 8100 and 4.38 parts of isophorone diamine to the reaction kettle in the gas pipeline, and then add 36.76 parts of octyl glycidyl ether dropwise to the reaction kettle under stirring at 50 °C. , and continued to react for 3.5 h under the protection of nitrogen to obtain polyols containing secondary amino groups. Then equipped with stirrer, thermometer and N 2Add 10.09 parts of HMDI and 8.55 parts of IPDI into the reaction kettle of the gas pipeline, and then slowly add the above-mentioned polyol containing secondary amino groups into the reaction kettle at 25°C with a stirring speed of 250r / min, and continue the reaction after the addition is completed 3.5h, obtain polyurea-based polyol (nuclear magnetic structure analysis such as image 3 , δ=2.4, the epoxy group peak at 3.0 disappeared, and the ether bond peak appeared at δ=2.9, indicating the...

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Abstract

The invention discloses polyurea based polyol, a preparation method, a polyether shoe sole stock solution and a preparation method. The polyurea based polyol is obtained through firstly, subjecting binary primary amine and a mono-functionality epoxy compound to a reaction so as to obtain a secondary amido containing polyol and then subjecting the secondary amido containing polyol to a reaction with diisocyanate. A component A of the shoe sole stock solution is obtained through mixing the polyurea based polyol with the traditional polyether. Due to presence of linear ureido in a molecular structure, a shoe sole prepared from the component A of the shoe sole stock solution can show excellent tear resistance and wear resistance of polyester shoe soles on the premise of keeping relatively goodlow-temperature compliance and hydrolysis resistance of polyether shoe soles, so that the problem that low-temperature compliance, hydrolysis resistance, tear resistance and wear resistance are difficult in effective combination is solved.

Description

technical field [0001] The invention relates to the technical field of polyols and shoe sole stock solutions, in particular to polyurea-based polyols and a preparation method thereof, and a polyether shoe sole stock solution using it as a raw material and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people have higher and higher requirements for the technical indicators of footwear products. Because polyurethane soles have the advantages of light weight, wear resistance, folding resistance, oil resistance, and chemical resistance, people have a large demand for polyurethane soles. increasing day by day. The current polyurethane stock solution for shoe soles can be subdivided into polyester type and polyether type. The sole made of polyester-type shoe sole solution has good tear resistance, but poor hydrolysis resistance and poor low-temperature elasticity, while the shoe sole made of polyether-type shoe sole ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/32C08G18/48C08G18/64C08G18/66A43B13/04C08G101/00
CPCC08G18/3275C08G18/48C08G18/6415C08G18/4081C08G18/6674C08G18/3206A43B13/04C08G2101/00
Inventor 杜秀才周萌安丽艳刘赵兴
Owner WANHUA CHEM GRP CO LTD
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