Refastenable adhesive tape closure
Patent 5158557 Issued on October 27, 1992. Estimated Expiration Date: 
December 3, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 3, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re24906 3484835 3630201 3853129 3867940 Adhesively attached absorbent liners Pressure-sensitive adhesive tape employing moisture resistant acrylate-base copolymer adhesive Reflex reflectors with pyramid-shaped indentations Contamination-tolerant pressure-sensitive adhesive tape Diaper closure utilizing pressure-sensitive adhesive tape having textured foil backing InventorsApplicationNo. 622180 filed on 12/03/1990US Classes:604/389, Adhesive tab fastener element428/156Including variation in thicknessExaminersPrimary: Green, Randall L.Assistant: Reichle, K. M. Attorney, Agent or FirmForeign Patent References
International ClassesA61F 013/05B32B 003/00 AbstractA refastenable adhesive closure is provided. The closure has a pressure-sensitive adhesive-bearing fastening tab and a target portion, or target strip, having a working face for contact with the adhesive-bearing fastening tab. The working face of the target strip is formed with peaks and valleys, the height of the peaks above the valleys being substantially uniform and from about 40 to 300 μm, the spacing between adjacent peaks being from about 50 to 500 μm, the back face of the target portion being substantially flat, and the thickness of the adhesive layer of the tab being no more than about 90% of the height of the peaks above the valleys. The closure is resistant to contamination by dust and other fine particulate matter and is especially useful for refastenable disposable diaper closures and refastenable envelope closures.Field of SearchSynthetic resinAdhesive tab fastener element With release means associated with tab fastner Polymer or resin (e.g., natural or synthetic rubber, etc.) Including variation in thickness And conforming component on an opposite nonplanar surface Composite web or sheet Including moisture or waterproof component With release or antistick coating Monolayer with structurally defined element | |
