Protective cover sheet comprising a UV-absorbing layer for a...

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

Reexamination Certificate

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C428S510000, C428S520000, C428S522000

Reexamination Certificate

active

07622185

ABSTRACT:
The invention relates to a protective cover sheet comprising a low birefringence protective polymer film and a layer that promotes adhesion to poly(vinyl alcohol), the protective cover sheet comprising at least one functional layer containing a UV-absorbing polymer.

REFERENCES:
patent: 4396642 (1983-08-01), Bolt et al.
patent: 4675219 (1987-06-01), Muneki et al.
patent: 2002/0102368 (2002-08-01), Ono et al.
patent: 09230138 (1996-02-01), None
patent: 2002169020 (2002-06-01), None
patent: 2002172743 (2003-06-01), None
patent: 2005/111667 (2005-11-01), None
patent: 2006/057799 (2006-06-01), None
patent: 2006/057800 (2006-06-01), None
U.S. Appl. No. 10/838,841, filed May 4, 2004.
International Search Report dated Apr. 2005, of International Application No. PCT/US2006/012974.

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