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:
Nov. 19, 2002
Filed:
Oct. 20, 1999
Abstract
There are provided a hologram laminate and a hologram label which do not involve any problem in the production process per se of forging preventive labels using a volume hologram, can provide a reliable process of the attainment of forgery preventive effect, and can make difficult to notice the signs of the forgery preventive processing. In applying a protective film onto a hologram through a second pressure-sensitive adhesive , the adhesive strength is partially varied. By virtue of this construction, upon separation of the protective film , the second pressure-sensitive adhesive is partially left on the hologram , so that the fact of the separation can be found out. Likewise, the adhesive strength of a first pressure-sensitive adhesive can be partially changed. Further, the adhesive strength of the first pressure-sensitive adhesive is larger than 1% tensile strength of the hologram . This can realize a property such that, as soon as the separation of the hologram is attempted, the hologram is elongated and undergoes a color change.