Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Reexamination Certificate
2007-06-12
2007-06-12
Davis, Robert (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
C425S363000, C425SDIG041
Reexamination Certificate
active
10933729
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
Davis Robert
Luk Emmanuel S.
Pechman Robert J.
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