Optical films incorporating cyclic olefin copolymers
First Claim
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1. A multilayer film comprising:
- a norbomene-based cyclic olefin film; and
a curable layer attached to the norbomene-based cyclic olefin film, wherein the curable layer comprises a curable material.
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Abstract
A norbomene-based cyclic olefin layer with a curable layer disposed thereon is described. The curable layer may additionally be imparted with a texture. The norbomene-based cyclic olefin films with curable layers can be incorporated into optical bodies which include an optical film, such as an oriented multilayer optical film. In addition, the invention includes a method of coating a curable layer onto a norbomene-based polymer layer or film without requiring a primer layer. Methods of making the norbomene-based cyclic olefin layer containing films are also disclosed.
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Citations
45 Claims
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1. A multilayer film comprising:
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a norbomene-based cyclic olefin film; and
a curable layer attached to the norbomene-based cyclic olefin film, wherein the curable layer comprises a curable material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 26, 45)
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15. An optical body comprising:
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an optical film;
at least one norbomene-based cyclic olefin layer disposed on the optical film; and
at least one curable layer comprising a curable material attached to the norbomene-based cyclic olefin layer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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27. A method of applying a curable layer to a norbomene-based cyclic olefin film, comprising:
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corona treating a norbomene-based cyclic olefin film; and
applying a curable material to the corona-treated norbomene-based cyclic olefin film, thereby forming a curable layer;
wherein the elapsed time between corona-treating the norbomene-based cyclic olefin film and applying a curable layer is less than 75 seconds. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of making an optical body, wherein the optical body comprises an optical film, the method comprising:
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providing an optical film comprising at least one norbomene-based cyclic olefm outer layer;
corona treating the norbomene-based cyclic olefin layer; and
coating a curable layer on the norbomene-based cyclic olefin layer, wherein the elapsed time between the corona treatment and the coating of the curable layer is less than 75 seconds. - View Dependent Claims (41, 42, 43, 44)
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Specification