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

1989-06-05

1993-01-19

Kunemund, Robert

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

150DIG113, C30B 2958

Patent

active

051804700

ABSTRACT:
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 highly-oriented poly(tetrafluoroethylene) with an orientation angle of less than 20.degree. 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.

REFERENCES:
patent: 3453566 (1969-07-01), Kasahara
patent: 3776465 (1973-12-01), Baker
patent: 4344908 (1982-08-01), Smith et al.
patent: 4411854 (1983-10-01), Maurer et al.
patent: 4769433 (1988-09-01), Chanzy et al.
Lauer et al., "Investigation of PTFE Transfer Film By Infrared Emission . . . ", NASA Tech. Meno. NASA-TM 89844, E-3505 1987 abstract only.
Meiboom et al., "Molecular Orientation of Monomolecular Liquid Crystal Layers on Various Substrates", Phys. Chem. Liq. Cryst. Devices 1980 abstract only.
Steijn, "Sliding Surface of Poly(Tetrafluoroethylene) Investigated with the Electron Microscope", Amer. Chem. Soc., Div. Petrol. Chem. Propr., 13(2) 1968 abstract only.
Klinedinst, "PTFE Film Adhesion to Electronically Conducting Materials", Adhes. Aspects Polym. Coat. 1983 abstract only.

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