Foamed adhesive tape for bonding to non-polar surfaces

A technology of adhesive tape and foam, which is applied in the field of preparation of adhesive tape products, can solve problems such as unsuitable for rapid manufacturing operations

Active Publication Date: 2014-04-02
TESA SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus this tape is not suitable for rapid manufacturing operations

Method used

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  • Foamed adhesive tape for bonding to non-polar surfaces
  • Foamed adhesive tape for bonding to non-polar surfaces
  • Foamed adhesive tape for bonding to non-polar surfaces

Examples

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preparation example Construction

[0088] The preparation of the viscoelastic foam carrier of the adhesive tapes according to the invention can be carried out solvent-free from solution or from the melt. Especially preferred is melt processing, since particularly thick foams can be produced without a drying step. As mentioned above, thermal crosslinking of viscoelastic foams is desirable because it avoids crosslinking gradients, unlike photochemical crosslinking or electron beam hardening. Particularly advantageously, thermal crosslinking can be carried out according to the thermal crosslinking methods of polyacrylate melts mentioned in EP0752435A1 and EP1978069A1, which are therefore expressly included in the disclosure content of this document. However, the present invention is not limited thereto. Furthermore, all crosslinking methods familiar to the person skilled in the art can be used.

[0089] Furthermore, processing from the melt is particularly preferred, since this allows the foaming process to be c...

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Abstract

An adhesive tape, with a carrier material, has an acrylate-based foam layer bearing at least one layer of pressure-sensitive adhesive. The pressure-sensitive adhesive (a) being composed of a mixture of at least two different synthetic rubbers, more particularly based on vinylaromatic block copolymers, (b) comprising a resin which is not soluble in the acrylates forming the foam layer, and (c) being chemically uncrosslinked.

Description

technical field [0001] The present invention relates to pressure sensitive adhesive tapes comprising a viscoelastic acrylate-based foam layer and at least one pressure sensitive adhesive (PSA) layer, wherein the PSA layer comprises a mixture of synthetic rubbers. The invention also includes methods of making and using such tape products. Background technique [0002] Typically, adhesives and tapes are used to bond the two substrates together to form a strong or permanent connection. Special tape products have a foam layer and are used, for example in the automotive industry, to permanently bond components to the car body or in the engine compartment. Typical examples are marking bonding and the fixing of plastic parts and rubber door seals. [0003] Examples of such pressure sensitive adhesive tapes are disclosed in WO2008 / 070386A1, US6,503,621A and US4,415,615A. [0004] Despite the large number of adhesives and tapes, the development of new pressure sensitive adhesives,...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J153/02C09J153/00C09J193/04C09J145/00C09J109/00C09J7/38C09J7/22C09J7/26
CPCC09J2433/006C09J2409/00C09J7/0289C09J7/0246C09J2453/00C09J2425/00C09J7/38C09J7/383C09J7/22C09J7/26Y10T428/249983Y10T428/249971B29B7/748B29B7/426B29B7/487B29B7/7461B29B7/845B29B7/526B29B7/86B29B7/485B29B7/726B29B7/90B29B7/826B29C48/0011B29C48/154B29C48/385B29C48/40B29C48/44B29C48/92B29C2948/92704B29C43/18B29C43/24B29C48/365B29C48/766C09J7/385C09J4/00C09J109/00C09J2301/40
InventorT·克拉文克尔A·普伦泽尔M·白
OwnerTESA SE