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Low-density timber-imitation polyurethane resin for shoes

A polyurethane shoe and low-density technology, which is applied in the field of shoe resin, can solve the problems of broken products due to poor strength, easy shrinkage and deformation of products, and narrow foaming range. wide range of effects

Active Publication Date: 2008-05-14
无锡双象新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the use of polyester resin for imitation wood shoes, the soles are light in weight, high in strength and easy to process, and are deeply loved by female consumers. However, the ordinary polyester resin for imitation wood shoes on the market has a relatively high viscosity , poor fluidity, narrow foaming range, easy to shrink and deform the product, when the density is low, the hardness is low, and some products have poor strength and will break when folded

Method used

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  • Low-density timber-imitation polyurethane resin for shoes
  • Low-density timber-imitation polyurethane resin for shoes
  • Low-density timber-imitation polyurethane resin for shoes

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Embodiment Construction

[0036] The present invention mainly belongs to three-component polyurethane shoe resin, A component is polyester polyol containing hydroxyl (OH) group, B component is a prepolymer containing isocyanate (NCO) group, C component It is an ethylene glycol solution containing triethylenediamine. When used, add component C to component A, mix well first, and use it as a component, and then chemically react with component B. After high-speed stirring with a foaming machine for low-pressure shoes, it is injected into the mold for one-time injection molding.

[0037] The molding processing condition of the low-density wood-like polyurethane shoe resin is to add component C to component A to form a mixed component of component A.

[0038] (1) For manual foaming, weigh 100 parts of component A and 145-155 parts of component B, and pour it into the mold cavity for foaming under the strong stirring of 2500r / min.

[0039] (2) Mechanical operation: the mixed components are added to the mate...

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PUM

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Abstract

The invention relates to a novel resin for polyurethane shoes; wherein, A component is a polyester polyol with hydroxyl (OH) group, and the main components are polyester polyol, chain extendor, cross linker, surface-active material, foaming agent and other addition agent. B component is a prepolymer with isocyanate (NCO) group. C component is glycol solution with triethylene diamine. The invention adopts five kinds of polyester polyol, wherein, two kinds are foaming agent and three kinds are silicon oil; the density of the product is low up to 0.25 to 0.30g / m<3>; the Shaw A hardness of the product is over 90 DEG C.

Description

technical field [0001] The invention relates to a shoe resin, in particular to a low-density imitation wood polyurethane shoe resin. Background technique [0002] Due to the use of polyester resin for imitation wood shoes, the soles are light in weight, high in strength and easy to process, and are deeply loved by female consumers. However, the ordinary polyester resin for imitation wood shoes on the market has a relatively high viscosity , poor fluidity, narrow foaming range, easy shrinkage and deformation of the product, low density, low hardness, and some products with poor strength will break when folded. Contents of the invention [0003] The object of the present invention is to develop a kind of polyester type low-density high-hardness imitation wood shoe resin, the viscosity of this resin is low, fluidity is good, and foaming range is wide, need not heat before use, and the product weight of sole is light, and strength is high. Good, good finish, no shrinkage. ...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/61C08G18/42B29C39/00B29C67/20B29D31/50B29L31/50B29D35/00
Inventor 何天华毛本春许磊吴宇
Owner 无锡双象新材料有限公司
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