Stock material or miscellaneous articles – Layer or component removable to expose adhesive – Release layer
Reexamination Certificate
2011-03-15
2011-03-15
Chevalier, Alicia (Department: 1783)
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
Release layer
C428S144000, C428S173000
Reexamination Certificate
active
07906193
ABSTRACT:
An original sheet of a retroreflective sheet includes plural glass beads with a metal reflective layer provided on lower hemisphere surfaces thereof, a resin support sheet for supporting the glass beads, and a transparent cover film disposed on a surface side of the resin support sheet, wherein the resin support sheet and the cover film are connected to each other by heat press emboss forming from a rear face of the resin support sheet so as to form the original sheet of the retroreflective sheet, and a retroreflective sheet laminate includes a pressure-sensitive adhesive layer and a resin release film for covering the pressure-sensitive adhesive layer on a rear side of the original sheet of the retroreflective sheet. An embossed groove by heat press emboss forming was filled with a part of the pressure-sensitive adhesive layer, a residual rate of the pressure-sensitive adhesive layer ranges between 10% and 50% inclusive, and a fall time of the pressure-sensitive adhesive layer ranges between 10 hours and 150 hours inclusive.
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Search Report of the corresponding European Patent Application Number (EP 03 81 1892) mailed on Jan. 24, 2008.
Iwamoto Yasuyoshi
Yukawa Shigeo
Chevalier Alicia
Kiwa Chemical Industry Co., Ltd.
Westerman Hattori Daniels & Adrian LLP
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