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Formulations for producing latent reactive adhesives

A technology of adhesives and preparations, applied in the direction of adhesives, adhesive heating bonding methods, adhesive types, etc., can solve the problem of adhesives not being reactive

Pending Publication Date: 2022-05-10
TESA SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the adhesive is not potentially reactive

Method used

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  • Formulations for producing latent reactive adhesives
  • Formulations for producing latent reactive adhesives
  • Formulations for producing latent reactive adhesives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0133] Example (examined sample)

[0134] Examples 1 to 3 were treated with acetone solution and examples 4 to 52 were treated with 2-butanone solution.

[0135] All examples were made as follows:

[0136] Example with desiccant nekafin 0 (CaO):

[0137] The corresponding preproducts and corresponding solvents were present in the required amounts in commercially available wide neck screw cap jars.

[0138] The amount of solvent required for the corresponding desired viscosity of the overall formulation depends on the coating process chosen by the person skilled in the art. A total solids content of the corresponding formulations of 20% to 30% by weight has proven to be advantageous on a laboratory scale using commercially available film stretching equipment. The person skilled in the art is well aware of the corresponding required viscosity for the chosen coating process.

[0139] The corresponding preproduct was homogenized with the added solvent using a dispersing disc (...

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Abstract

The invention relates to a formulation for preparing an adhesive, comprising: a polymer component (component (i)) formed from at least one thermoplastic polymer comprising functional groups capable of reacting with isocyanates; a crosslinker component (component (ii)) formed from at least one particulate compound comprising an isocyanate; a solvent component (component (x)) formed from at least one organic solvent, in which the polymer component is substantially dissolved in the solvent component, and the crosslinker component is substantially neither the solvent-free polymer component nor the solvent component at 23 DEG C.

Description

technical field [0001] The invention relates to preparations for the production of, in particular latently reactive adhesives from at least one isocyanate-reactive polymer and at least one isocyanate-containing compound, corresponding adhesives and adhesive films based on such adhesives. Background technique [0002] Nearly all modern consumer electronics, communication electronics, data processing, and an increasing number of home electronics have visual display systems for displaying the operating status of the device or other information. If more complex relationships are to be represented here, display modules based on liquid crystals (LCD) or organic light-emitting diodes (OLED) are usually used for the display. Such displays are used, for example, in digital cameras, small portable computers, so-called tablet computers, so-called laptop and / or notebook computers, mobile phones and so-called smartphones. In order to protect the display module from damage caused by exte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J163/02C09J163/04C09J163/00C09J5/06C09J7/30
CPCC09J175/04C09J5/06C09J7/30C09J2475/00C09J2463/00C08L63/00C08L63/04C08G18/10C08G18/8048C08G18/797C08G18/341C09J7/10C09J2203/326
Inventor M.库普斯基T.多拉斯M.爱格A.波卢斯
Owner TESA SE