Invention Grant
- Patent Title: Method for producing adhesive blanks from an endless band and blanks obtained according to said method
- Patent Title (中): 根据所述方法从环形带生产粘合坯料的方法和坯料
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Application No.: US10670046Application Date: 2003-09-24
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Publication No.: US07790195B2Publication Date: 2010-09-07
- Inventor: Frank Hardt , Paul Genich
- Applicant: Frank Hardt , Paul Genich
- Applicant Address: DE Andernach
- Assignee: LTS Lohmann Therapie-Systeme AG
- Current Assignee: LTS Lohmann Therapie-Systeme AG
- Current Assignee Address: DE Andernach
- Agent D. Peter Hochberg; Sean F. Mellino; Daniel J. Smola
- Priority: DE19837764 19980820
- Main IPC: A61L15/16
- IPC: A61L15/16 ; B32B7/12

Abstract:
The invention relates to a method of producing adhesive die-cut articles with internal cut-outs 3 from an endless web 1, the web having a carrier layer 4, at least one adhesive layer 5 and, if appropriate, a matrix layer 6, and to a die-cut article produced by the method. In order to produce a die-cut article with an internal cut-out 3 whilst avoiding the use of a hollow punch, the contour 17 of the internal cut-out 3 and the external contour 10 of the respective die-cut article are die-cut out of the adhesive layer 5 and, if appropriate, the matrix layer 6 one after another, the external contour 10 not having any common point with the die-cutting line of the internal cut-out 3, the carrier layer 4 with the die-cutting residues from the internal cut-out 3 being pulled off over a pull-off edge, and the remaining web being transferred to a protective film 8.
Public/Granted literature
- US20040057984A1 Method for producing adhesive blanks from an endless band and blanks obtained according to said method Public/Granted day:2004-03-25
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