Forgery-preventing film

Details Forgery-preventing film Forgery-preventing film

2011-06-14

2011-06-14

Chang, Victor S (Department: 1788)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

C428S138000, C428S141000, C428S156000, C428S516000, C428S910000, C428S916000

Reexamination Certificate

active

07960022

ABSTRACT:
Disclosed is a forgery-preventing film having, on one side of a first layer (A) comprising a thermoplastic resin, a second layer (B) comprising a thermoplastic resin wherein said film satisfying at least one of the following conditions: Condition 1: one side of said first layer (A) is treated to prevent forgery and said second layer (B) is formed on the surface of the treated side of said first layer (A); Condition 2: said second layer (B) comprises at least two thermoplastic resins of different melt viscosities; Condition 3: porosity of said second layer (B) is greater than porosity of said first layer (A); and Condition 4: a polymer net is formed on one side of said first layer (A) and said second layer (B) is formed on the surface having the polymer net.

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Japanese Office Action for Japanese Patent Application No. 2001-283040, dated Oct. 19, 2010, with English translation.

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