Stock material or miscellaneous articles – Layer or component removable to expose adhesive
Reexamination Certificate
1996-12-23
2001-11-20
Ahmad, Nasser (Department: 1772)
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
C248S549000, C428S041700, C428S041800, C428S042100, C428S042200, C428S042300, C428S043000
Reexamination Certificate
active
06319578
ABSTRACT:
BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
The invention is for a tape on a roll or consisting of separate pieces cut in advance with by preference but not exclusively a self-adhesive adhesion strip which may or may not be reinforced and which may for example be made of butyl or another bituminous or rubbery material and which is intended to be used primarily for the installation of rubber sealing strips for example in and on car doors but which can also be used for other applications.
BRIEF DESCRIPTION OF THE PRIOR ART
Tape on a roll or tape consisting of separate pieces cut to size in advance and which contains a butyl, bituminous or rubbery adhesive adhesion strip on which a backing strip for example of plastic or paper, such as silicon paper is provided so that it can be removed, which adhesion strip may or may not be covered by a protective strip of plastic or paper such as silicon paper for the temporary protection of the adhesion strip is known.
To use the self-adhesive butyl, bituminous or rubbery adhesion strip on a roll or in separate pieces, the protective strip is removed from the adhesion strip, the adhesion strip is for example applied to a rubber sealing strip which is installed in or on a car door, after which the backing strip is removed.
It has proved that this tape has the disadvantage during use that both the protective strip and the backing strip start to curl and come away easily and prematurely from the tape. As a result it is possible that during attachment the adhesion strip sticks to surfaces for which it is not intended. At the same time air channels are created between the backing strip, the protective strip and adhesion strip, with the result that the quality of attachment of the adhesion strip will be reduced as result of drying and/or contamination with dust.
SUMMARY OF THE INVENTION
In order to remedy this a tape according to the main characteristic of the invention has been realized in which the backing strip is provided with additional means of adherence in order to make the adhesive force between the backing strip and the adhesion strip greater than that between the adhesion strip and the protective strip, so that not only does the protective strip always first come loose from the adhesion strip but that also the adhesion strip is prevented from curling and the creation of air channels between the various strips is avoided.
REFERENCES:
patent: 2191704 (1940-02-01), Bennet
patent: 2552664 (1951-05-01), Burdine
patent: 2860081 (1958-11-01), Eiken
patent: 3411978 (1968-11-01), Frohbach
patent: 3770559 (1973-11-01), Jackson
patent: 3885768 (1975-05-01), Frye
patent: 3999949 (1976-12-01), Andersson
patent: 4182789 (1980-01-01), Castelluzzo
patent: 5366775 (1994-11-01), Kao
Ahmad Nasser
Drucker William A.
Varitape B.v.B.a.
LandOfFree
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