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Method for preparing bonded product by single-sided gluing

A product, single-sided technology, applied in the field of adhesive products prepared by gluing on one side, to achieve good initial bond strength

Pending Publication Date: 2020-10-09
COVESTRO DEUTSCHLAND AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for preparing bonded product by single-sided gluing
  • Method for preparing bonded product by single-sided gluing
  • Method for preparing bonded product by single-sided gluing

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Embodiment Construction

[0017] The present invention provides a method for preparing a bonded article with one-sided gluing, comprising the following steps: a. applying a cleaning agent to at least one surface of a first substrate, and drying the surface of the first substrate on which the cleaning agent is applied b. applying an adhesive to at least one surface of a second substrate, drying the second substrate surface to which the adhesive is applied; and c. making the first substrate surface treated in step a Contacting the surface of the second substrate treated in step b to obtain the bonded product; wherein the polar organic solvent has a boiling point not higher than 135° C. and isocyanate non-reactive; the polyisocyanate conforms to the general formula R(NCO ) n , wherein, R is one or more of the following: aliphatic hydrocarbon groups containing 2-18 carbon atoms, aromatic hydrocarbon groups containing 6-15 carbon atoms and araliphatic hydrocarbon groups containing 8-15 carbon atoms, n Not ...

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Abstract

The invention relates to a method for preparing a bonded product by single-sided gluing, the bonded product prepared by the method, and application of the bonded product in footwear production. The method comprises the following steps: a, applying a cleaning agent to at least one surface of a first substrate, and drying the surface of the first substrate to which the cleaning agent is applied; b,applying an adhesive to at least one surface of a second substrate, and drying the surface of the second substrate to which the adhesive is applied; and contacting the surface of the first base material treated in the step a with the surface of the second base material treated in the step b to obtain the bonded product, wherein the cleaning agent comprises a polar organic solvent and polyisocyanate, the boiling point of the polar organic solvent is not higher than 135 DEG C, and the isocyanate is non-reactive; the weight of isocyanate groups of the polyisocyanate accounts for 0.005 wt%-6wt% ofthe weight of the cleaning agent.

Description

technical field [0001] The invention relates to a method for preparing a bonded product with glue on one side, the bonded product prepared by the method and the application of the bonded product in footwear production. Background technique [0002] The traditional process of bonding shoe materials in the shoemaking industry is double-sided gluing process, that is, the adhesive is applied on the sole upper or the midsole and the outsole of the shoe, and the midsole, the outsole and the upper Adhesives often also require cleaning and priming prior to application. For example, CN1235966C discloses a laminate comprising a foamed product layer and a polyolefin material layer, the laminate is bonded by double-sided gluing. However, because the shoemaking industry is facing the problems of high labor costs, complicated gluing process, and low production efficiency, the shoemaking industry hopes to find a simplified shoemaking process. [0003] The single-side gluing process reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/08B32B27/06B32B27/08B32B27/30B32B27/40B32B7/12B32B37/12B32B38/16C08J7/06C09J175/04C09J175/02C09J175/06C09J11/06C08L75/04
CPCB32B25/08B32B27/08B32B27/304B32B27/40B32B7/12B32B37/1284B32B38/164C08J7/065C09J175/04C09J175/02C09J175/06C09J11/06C08J2375/04B32B2038/166B32B2250/24B32B2255/10B32B2255/26B32B2307/306B32B2307/714B32B2437/02
Inventor 魏松丽张晨曦张海龙李洪超金晨朱英丹赵东波
Owner COVESTRO DEUTSCHLAND AG
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