Stock material or miscellaneous articles – Composite – Of polyamidoester
Reexamination Certificate
2008-05-20
2008-05-20
Tran, Thao (Department: 1794)
Stock material or miscellaneous articles
Composite
Of polyamidoester
C526S931000, C526S320000
Reexamination Certificate
active
10157136
ABSTRACT:
A removable pressure sensitive adhesive composition includes at least (A) a hydroxyl-group-containing acrylic polymer, (B) an amine compound containing plural hydroxyl groups, and (C) a polyisocyanate compound and has a gel fraction of equal to or more than 70% by weight after drying or curing. A removable pressure sensitive adhesive sheet has a removable pressure sensitive adhesive layer including the removable pressure sensitive adhesive composition formed on one or both sides of a base material. The sheet may have a 180° peel force with respect to a melamine-faced steel sheet of 5 N/20-mm or less and may have a 180 ° peel force after adhesion at 50° C. for 48 hours of 1.2 times or less the initial adhesion (after adhesion at 23° C. for 20 minutes), as determined at a pulling rate of 300 mm/minute, 23° C. and 50% relative humidity.
REFERENCES:
patent: 3865770 (1975-02-01), Blake
patent: 4145514 (1979-03-01), de Vry et al.
patent: 5240989 (1993-08-01), Bernard et al.
patent: 5433892 (1995-07-01), Czech
patent: 5734002 (1998-03-01), Reich et al.
patent: 5977284 (1999-11-01), Reich et al.
patent: 6177540 (2001-01-01), Harlan et al.
patent: 6180742 (2001-01-01), Kato et al.
patent: 6489396 (2002-12-01), Nakamura et al.
patent: 6552118 (2003-04-01), Fujita et al.
patent: 0 731 121 (1996-09-01), None
patent: 0 819 713 (1998-01-01), None
patent: 5-163480 (1993-06-01), None
patent: 5-169596 (1993-07-01), None
patent: 8-41433 (1996-02-01), None
patent: 8-120247 (1996-05-01), None
patent: 8-199143 (1996-08-01), None
patent: WO 98/24826 (1998-06-01), None
patent: WO 00/71625 (2000-11-01), None
Copending U.S. Appl. No. 10/157,138.
Patent Abstract of Japan, vol. 1999, No. 03, Mar. 31, 1999, (abstract only) (JP 10330722, Dec. 15, 1998).
Patent Abstract of Japan, vol. 015, No. 202 May 23, 1991 (abstract only) (JP 03054285, Mar. 8, 1991).
Database WPI, Derwent Publications Ltd., AN 2000-641575 (abstract only) (JP 2000230157, Aug. 22, 2000).
Ando Masahiko
Okochi Naoki
Birch & Stewart Kolasch & Birch, LLP
Nitto Denko Corporation
Tran Thao
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