Adhesive agent having adhesive blend of acrylate and styrene block copolymer

A technology of block copolymers and polyacrylates, which is applied in the direction of ester copolymer adhesives, hydrocarbon copolymer adhesives, film/sheet adhesives, etc., and can solve the problem of incompatibility of blends, etc. question

Active Publication Date: 2015-05-06
LOHMANN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far there has been no description of the properties of the adhesive according to the invention which are highlighted here due to the inherently incompatible constituents of the blend

Method used

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  • Adhesive agent having adhesive blend of acrylate and styrene block copolymer
  • Adhesive agent having adhesive blend of acrylate and styrene block copolymer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0067] Example 1 (B1) :

[0068] 10.7 parts of Polymer 3, 21.2 parts of Resin 2 and 0.32 parts of AO1 were dissolved in solvent LM1, thus resulting in a solids content of approximately 55%. The mixture was supplied with a solution consisting of 65.1 parts of Polymer 1, 19.9 parts of Resin 1 and 16.3 parts of LM1.

[0069] The total mixture was mixed intensively for about 3 minutes at about 5000 U / min in a laboratory dissolver (Dispermat TU from the company VMA-Getzmann, with dissolution pan) so that a somewhat homogeneous dispersion was produced. The mixture was further worked up over 12 hours. 4.58 parts of crosslinker solution VM1 were mixed homogeneously into this mixture. The adhesive substance was applied to a siliconeized polyester film (thickness 50 μm) by means of a steel doctor blade, first dried at room temperature for 10 minutes and then dried in an air-circulating oven at 110° C. for 5 minutes. The thickness of the application is chosen such that after drying ...

example 2

[0070] Example 2 (B2) :

[0071] As Example 1, however using Polymer 2 instead of Polymer 1.

example 3

[0072] Example 3 (B3, comparative example) :

[0073] Neat Polyacrylate Adhesive: 100 parts Polymer 1 mixed with 7 parts V1 and coated, dried and coated onto a foam carrier as described above.

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Abstract

The present invention relates to a carrier-based bonding adhesive agent, which is equipped for bonding adhesion on one or both sides or a carrier-free bonding adhesive agent, in the form of an adhesive strip or stamped part having a bonding adhesive consisting substantially of a blend of polyacrylate and a synthetic rubber as well as one or more adhesive resins. By comparison with previously known adhesive systems such an adhesive exhibits a significant improvement in adhesion on hard, non-polar surfaces such as for example new paint surfaces in the automobile industry.

Description

technical field [0001] The invention is a carrier-based adhesive that is glued on one or both sides or can also be carrier-free, in the form of an adhesive tape or stamped part with adhesive material, so that The adhesive material consists essentially of a blend, preferably produced by a solvent process, of polyacrylate and synthetic rubber, and of one or more adhesive resins. Adhesives of this type have a markedly improved adhesion to hard, non-polar surfaces, such as the new varnish surfaces of the automotive industry, compared to hitherto known adhesive systems. Background technique [0002] With regard to characterizing the general properties of adhesive materials and with regard to known types of adhesive materials and commonly used constituents, reference should be made to the relevant work in the literature, for example the work mentioned in EP 1263913 B1 also described in more detail below. [0003] The lacquers that are preferred today, especially in the automotive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/06C09J7/02
CPCC09J7/385C09J7/387C08L53/02C09J133/08C08F220/1804C08F220/1808C08F220/1811C08F220/06C08F220/20C08F220/18C09J125/04C08L25/04
Inventor 帕特里克·科普夫帕特里夏·彼得里克阿克塞尔·卡梅尔甘
Owner LOHMANN GMBH & CO KG
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