US 6,106,953 AGranted

Using a cleaning cloth impregnated with coupling agent for adhesive films

AssigneeBeiersdorf AG

InventorsDieter Zimmermann, Bernd Luhmann, Klaus Wachtmann

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Abstract

Use of a prior-cleaning cloth for an adhesive bond brought about by means of an adhesive film which is rereleasable without damage by pulling in the direction of the bond plane and which has an adhesive composition based on polymers and/or copolymers of synthetic rubber and/or natural rubber, characterized in that the substrate to be bonded is rubbed with a prior-cleaning cloth of this kind which is impregnated with a moisture-reactive organosilane, the organosilane being dissolved in a solvent or solvent mixture and being present therein in a concentration of 0.1-3% by weight, whereupon, following a waiting time of a few minutes, the adhesive film is pressed onto the treated area and then an article, hook or the like is bonded to the other side of the adhesive film, or else in that, after a waiting time of a few minutes, the adhesive film is pressed onto the treated area, an article, hook or the like already being located in bonded-on form on the reverse of the adhesive film.

Claims14

Dependent claims

A method of adhering an adhesive film strip to a substrate in such a way that said adhesive film strip can later be removed from said substrate without leaving an adhesive residue on said substrate and without damaging said substrate, said method comprising:

a) providing said adhesive film strip, which comprises an adhesive composition based on polymers or copolymers of synthetic rubber or natural rubber, and which adhesive film strip, when bonded to said substrate, can be released from said substrate by pulling on said adhesive film strip in the direction of the plane of the bond formed between said adhesive film strip and said substrate;
b) providing a cloth impregnated with a moisture-reactive organosilane, said organosilane being dissolved in a solvent or solvent mixture, the organosilane being dissolved in said solvent or solvent mixture in a concentration of 0.1-3% by weight based on the combined weight of the organosilane and solvent or solvent mixture;
c) rubbing an area of the substrate with the cloth to provide a treated area of said substrate;
d) adhering the adhesive film strip to said treated area of substrate;
and
e) releasing said adhesive film strip from said treated area of substrate without leaving an adhesive residue on said substrate and without damaging said substrate by pulling on said adhesive film strip in the direction of the plane of the bond formed between said adhesive film strip and said substrate.

3 more elements

Dependencies are inferred from the claim text.