Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Reshaping running or indefinite-length work
Reexamination Certificate
2005-09-06
2005-09-06
Lechert, Jr., Stephen J. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Reshaping running or indefinite-length work
C264S290200, C264S291000
Reexamination Certificate
active
06939499
ABSTRACT:
A process for stretching films is described. The process preferably stretches films in a uniaxial fashion. Preferably, optical films are stretched including multilayer optical films. Other aspects of the invention include a roll of stretched film and an apparatus for stretching films.
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Weber, Michael F., et al., “Giant Birefringent Optics in Multilayer Polymer Mirrors,”Science, vol. 287, pp. 2451-2456 (Mar. 31, 2000).
Jackson Jeffery N.
Krueger Dennis L.
Merrill William Ward
Ruff Andrew T.
Wheatley John A.
3M Innovative Properties Company
Kobilansky Anna A.
Lechert Jr. Stephen J.
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