Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Reexamination Certificate
2007-12-21
2010-06-01
Sample, David R (Department: 1794)
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
C428S143000, C428S156000, C428S167000, C428S323000, C428S327000, C428S409000
Reexamination Certificate
active
07727616
ABSTRACT:
The invention pertains to a scratch-resistant thin film comprising a transparent substrate wherein the substrate comprises at least one micro structured layer on the lower side and at least one scratch-resistant layer on the upper side, wherein said scratch-resistant layer has a convex-concave structure, a surface resistivity in the range from 108to 1012Ω/□, a pencil hardness of 3H or more as measured according to JIS K5400 standard method, and a haze in the range from 30% to 98% as measured according to JIS K7136 method.The thin film of the invention exhibits both light enhancement and light uniformization properties, has a low volume shrinkage, does not warp, and possesses excellent anti-static and high hardness properties.
REFERENCES:
patent: 6503627 (2003-01-01), Niimi et al.
patent: 2006/0132922 (2006-06-01), Takao et al.
patent: 2006/0167126 (2006-07-01), Goto et al.
Eternal Chemical Co., Ltd.
Ladas & Parry LLP
Sample David R
Simone Catherine
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