C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 133/00 (2006.01) C09J 7/02 (2006.01) C09J 11/06 (2006.01) G02B 5/22 (2006.01)
Patent
CA 2598642
A pressure-sensitive adhesive composition which contains a colorant and, despite this, has high durability; a pressure-sensitive adhesive film which is for use in producing an optical filter from which a resin film containing a near-infrared-absorbing colorant is omitted and which has excellent durability; and an optical filter from which a resin film containing a near- infrared-absorbing colorant is omitted and which has excellent durability. The pressure-sensitive adhesive composition comprises a phthalocyanine colorant, a dithiol complex, and an acrylic pressure-sensitive adhesive having an acid value of 10 mg-KOH/g or lower. The pressure-sensitive adhesive film comprises a film and, formed thereon, a pressure-sensitive adhesive layer comprising the pressure-sensitive adhesive composition. The optical filter comprises a base, one or more films bonded thereto, and a pressure sensitive adhesive layer comprising the pressure-sensitive adhesive composition, the adhesive layer being disposed between the base and the film adjacent thereto or between any adjacent two of the films.
L'invention concerne une composition adhésive sensible à la pression qui contient un colorant et, malgré cela, est de longue durée ; un film adhésif sensible à la pression servant à la fabrication d'un filtre optique dans lequel on a omis un film de résine contenant un colorant absorbant proche de l'infrarouge et d'une excellente durabilité ; et un filtre optique dans lequel on a omis un film de résine contenant un colorant absorbant proche de l'infrarouge et d'une excellente durabilité. La composition adhésive sensible à la pression comprend un colorant de phtalocyanine, un complexe dithiol et un adhésif sensible à la pression acrylique ayant une valeur acide inférieure ou égale à 10 mg-KOH/g. Le film adhésif sensible à la pression comprend un film et, formée sur celui-ci, une couche adhésive sensible à la pression comprenant la composition adhésive sensible à la pression. Le filtre optique comprend une base, un ou plusieurs films collés à celle-ci, et une couche adhésive sensible à la pression comprenant la composition adhésive sensible à la pression, la couche adhésive étant disposée entre la base et le film adjacent à celle-ci ou bien entre deux films adjacents quelconques.
Asahi Glass Company Limited
Smart & Biggar
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