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Resin for polyester type shoes

A polyester technology for footwear, applied in footwear, applications, apparel, etc., can solve the problems of production efficiency and economic benefit, long production cost and production cycle, complicated resin formula, etc., to achieve inventory and production cycle. Shortening, stable product quality, wide range of effects

Inactive Publication Date: 2009-08-12
无锡双象新材料有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, due to the use of various polyester polyols, the production organization and management are extremely invariable, the resin formula is cumbersome, there are many links, and storage is also troublesome. The production cost and production cycle are long, which is not conducive to responding to market changes. Different requirements from customers, which also have a certain impact on production efficiency and economic benefits

Method used

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  • Resin for polyester type shoes

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Experimental program
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Effect test

Embodiment Construction

[0027] The molding and processing conditions of the shoe resin of the present invention are as follows: component A and component B are preheated in an oven at 60±5°C for 4 to 6 hours, then take out component C and add component A to form a component A mixture . The amount of C is generally 1.22 to 1.5% of A.

[0028] (1) Manual operation: Weigh 100 parts of component A and 80 parts of component B, and pour them into the mold cavity for 5-9 seconds under strong stirring at 2500r / min to foam.

[0029](2) Mechanical operation: The mixture of component A is added to the A material tank of the shoe machine, circulated in the system through the metering pump, and measured during pouring operation. Add component B into material tank B of the shoe machine, circulate in the system through the metering pump, and measure during pouring operation.

[0030] (3) The mixing equivalent of component A is about 172; the mixing equivalent of component B is 215±5;

[0031] (4) The pressure of...

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PUM

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Abstract

The invention belongs to a resin formula for shoes, and relates to three-component polyester polyurethane resin. Component A is a hydroxyl (OH) raw material and an active hydrogen-containing mixture, and mainly consists of a polymeric polyol with a long chain, a chain extender, a crosslinking agent, a surfactant, a foaming agent and other additives. Component B is an isocyanate (NCO) raw material, and mainly a 4,4-diphenyl diisocyanate (MDI) prepolymer modified by polyester. Component C is a catalyst and consists of glycol solution of triethylenediamine. In the formula, only one polyester polyol is adopted in the component A, which changes the original framework of two or more polyols, refines the formula, simplifies process flow and optimizes cost, thus being a major breakthrough in energy-saving and emission reduction and efficiency improvement.

Description

technical field [0001] The invention belongs to a three-component polyester type resin for shoes, which is mainly used in the production of travel shoes, leather shoes and labor insurance shoes, and belongs to the formula of polyester type polyurethane resin. Background technique [0002] At present, the polyurethane resins used in the market are mainly resin formulations made of several polyester polyols. In component A, two or more polyester polyols should be used to stabilize the resin skeleton, and in component B, different polyester polyols or polyether polyols should be used to stabilize the resin formula and achieve stable product quality. Purpose. However, due to the use of various polyester polyols, the production organization and management are extremely invariable, the resin formula is cumbersome, there are many links, and storage is also troublesome. The production cost and production cycle are long, which is not conducive to responding to market changes. Diffe...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/08B29C45/76A43B1/14C08G101/00
Inventor 何天华许磊阳文涛
Owner 无锡双象新材料有限公司
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