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:
Oct. 23, 2001
Filed:
Mar. 03, 1999
Yongzhong Wang, West Warwick, RI (US);
Arkwright Incorporated, Fiskeville, RI (US);
Abstract
This invention provides a pressure-sensitive adhesive article, such as a tape, comprising a backing and a pressure-sensitive adhesive coating. The adhesive coating comprises microspheres chemically bonded to a cross-linked polymer network. The adhesive coating is prepared from a mixture comprising a multifunctional aziridine cross-linking agent; a microsphere adhesive having carboxylic acid functional groups; and a binder adhesive having carboxylic acid functional groups. The cross-linked adhesive polymer network provides high cohesive strength and microspheres in the adhesive provide a method of controlling the peel strength. The pressure-sensitive adhesive tapes are particularly suitable for use on transcript imaging films, where they can be cleanly removed from the film.