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US 4,394,904 AGranted
Peripherally supported package for adhesive-surfaced articles
AssigneeMinnesota Mining and Manufacturing Company
InventorFranklin C. Larimore
Life of this patent
Estimating the term…
Abstract
A package for adhesive-surfaced sheet-like articles which may be delicate is formed by mounting the adhesive surface of the article onto a two-part release-surfaced carrier, one part of which supports the periphery of the article and the other part supporting the interior area of the article. With such a package, adhesive-surfaced sheet-like articles can be accurately placed onto an adherend without danger of contaminating the adhesive surface or allowing tearing, curling, or distortion of the article.
Claims18
A package comprising:
- (a) an adhesive-surfaced, delicate sheet-like article;
- (b) a release sheet laminated to the adhesive surface of said article and cut to form
- (1) a peripheral release carrier that is releasably adhered to peripheral areas of said adhesive surface and that has a central aperture exposing a major portion of the adhesive surface of said article;
- and
- (2) a release cover cut out of said release sheet and having the exact dimensions of said aperture in said peripheral release carrier, releasably adhered over the portion of said adhesive surface exposed by said aperture;
- the ratio of the length of a straight line joining any two points on the perimeter of said article and passing through the center of said article, to the summation of the segments of that line overlapped by said peripheral release carrier, being at least about 5 to 1.
3 more elements
A package comprising:
- (a) an adhesive-surfaced, delicate sheet-like article;
- (b) a release sheet laminated to the adhesive surface of the sheet-like article and cut to form
- (1) a peripheral release carrier that is releasably adhered to peripheral areas of said adhesive surface and that has a central aperture exposing a major portion of the adhesive surface of said article;
- and
- (2) a release cover cut out of said release sheet and having the exact dimensions of said aperture in said peripheral release carrier, releasably adhered to and covering the portion of said adhesive surface exposed by said aperture;
- said adhesive-surfaced article overlapping said peripheral release carrier by at most 10 mm.
3 more elements
Dependencies are inferred from the claim text.