Multilayer polymer film with additional coatings or layers
First Claim
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1. A multilayer optical film comprising:
- (a) an optical stack including alternating layers of at least a first polymer and a second polymer, and having first and second outer layers; and
(b) a holographic image in or on at least one layer of the multilayer optical film.
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Abstract
A multilayer polymer film has an optical stack including a plurality of alternating polymer layers with skin layers having mechanical, optical, or chemical properties differing from those of the layers in the optical stack. In one embodiment, the multilayer polymeric film has one or more holograms that provide attractive and useful optical effects.
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Citations
54 Claims
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1. A multilayer optical film comprising:
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(a) an optical stack including alternating layers of at least a first polymer and a second polymer, and having first and second outer layers; and
(b) a holographic image in or on at least one layer of the multilayer optical film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of providing a multilayer optical film, comprising the steps of:
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(a) providing an optical stack including alternating layers of at least a first polymer and a second polymer, and having first and second outer layers; and
(b) providing a holographic image in or on at least one layer of the multilayer optical film. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. In combination:
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(a) a multilayer polarizer film having alternating layers of at least a first polymer and a second polymer and a holographic image, the multilayer polarizer film overlying a printed image; and
(b) a verifying polarizer film, whereby when the two polarizer films are aligned in at least one orientation the printed image is substantially imperceptible and the holographic image is perceptible.
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49. A multilayer optical film comprising:
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(a) an optical stack including alternating layers of at least a first polymer and a second polymer, wherein at least one of the polymers has a stress-induced birefringence; and
(b) a holographic image in or on at least one layer of the multilayer optical film. - View Dependent Claims (50, 51, 52, 53, 54)
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Specification