Multilayer optical bodies
First Claim
1. An optical body, comprising:
- a plurality of first optical layers, each first optical layer being oriented and comprising a first polymer composition, the first polymer composition comprising (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units, and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130°
C.; and
a plurality of second optical layers disposed in a repeating sequence with the plurality of first, optical layers, each second optical layer comprising a second polymer composition.
1 Assignment
0 Petitions
Accused Products
Abstract
Optical bodies, comprising: a plurality of first optical layers comprising a first polymer composition that comprises (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units, and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130° C.; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. Also disclosed are optical bodies comprising: (a) a plurality of first optical layers, each first optical layer being oriented; and (b) a plurality of second optical layers, disposed in a repeating sequence with the plurality of first optical layers, comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. Methods of making the above-described optical bodies, and articles employing such optical bodies are also provided.
-
Citations
24 Claims
-
1. An optical body, comprising:
-
a plurality of first optical layers, each first optical layer being oriented and comprising a first polymer composition, the first polymer composition comprising (i) a polyester portion having terephthalate comonomer units and ethylene glycol comonomer units, and (ii) a second portion corresponding to a polymer having a glass transition temperature of at least about 130°
C.; and
a plurality of second optical layers disposed in a repeating sequence with the plurality of first, optical layers, each second optical layer comprising a second polymer composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An optical body, comprising:
-
a plurality of first optical layers, each first optical layer being oriented and comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units; and
a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a polyolefin copolymer;
the optical body being configured and arranged to reflect at least a portion of light over at least one wavelength region. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. An optical body, comprising:
-
a plurality of first optical layers, each first optical layer being oriented and comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units; and
a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising an acid-modified polyolefin;
the optical body being configured and arranged to reflect at least a portion of light over at least one wavelength region. - View Dependent Claims (19, 20, 21, 22, 23, 24)
-
Specification