Deposition of highly oriented ptfe films and uses therefor

Details Deposition of highly oriented ptfe films and uses therefor Deposition of highly oriented ptfe films and uses therefor

C - Chemistry, Metallurgy

08

J

C08J 5/04 (2006.01) C30B 19/12 (2006.01) C30B 25/18 (2006.01) D01D 11/00 (2006.01) G11B 7/00 (2006.01) G11B 7/24 (2006.01)

Patent

CA 2060362

-41- DEPOSITION OF HIGHLY-ORIENTED PTFE FILMS AND USES THEREFOR Abstract of the Disclosure Broadly the invention is a method for forming a highly oriented crystal structure on a substrate in a known orientation comprising the steps of forming a film of poly(tetrafluoroethylene) with an orientation angle of less than 20° on a surface of the substrate with its nominal orientation director along a desired orientation director and then depositing a crystal-forming material on the highly oriented poly(tetrafluoroethylene) to form the structure. Specific examples include a method for growing a highly oriented crystal on filament substrates, a method for producing extruded polymer articles (fibers, tapes, and solids) containing oriented crystal growth to improve the characteristics thereof, and a method for storing and retrieving data.

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