The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Apr. 14, 2020
Flex R&d, Inc., Beverly Hills, CA (US);
Prakash Mallya, Sierra Madre, CA (US);
Ramin Heydarpour, Beverly Hills, CA (US);
David Nicholas Edwards, Santa Fe, NM (US);
William Ben Bower, Palo Alto, CA (US);
FLEX R&D, INC., Beverly Hills, CA (US);
Abstract
A tape closure system is shown and described herein. The tape closure system includes a first tape component having a pressure sensitive adhesive and a second tape component having a pressure sensitive adhesive, where at least one of the pressure sensitive adhesives has a modified surface to reduce the tack of the surface such that when the first and second pressure adhesives are brought into contact with one another they may sufficiently adhere to one another to form a seal but are still separable from one another and able to be repeatedly opened and sealed. Such a tape may be manufactured through high speed manufacturing processes and wound into large master rolls. In the roll configuration, the modified surface contacts the backside of the liner and experiences compressive forces in the roll. Due to the compressive forces, a part of the modified surface may get pushed into the PSA, thereby affecting the properties of the modified adhesive. An embodiment of this invention provides an embossed liner with spacers that nest the modified adhesive surface when it is self-wound, thereby preventing the deterioration of the adhesive properties. An embodiment of the invention is a method by which the adhesive-based closure system can be applied on to a flexible packaging material on a Form Fill Seal packaging machine in one of three ways: (1) In a form of a tape from a spool. (2) In a form of an adhesive dispensed directly on to flexible packaging material. (3) In form of a tape dispensed from a roll of pressure sensitive adhesive roll. Another embodiment of the invention is a double sided tape with the detack layer on both sides. An embodiment of the present invention can also be used for temporary closure with no damage done to the underlying system.