Sheet-like polyethylene terephthalate materials having slight surface roughness, their preparation and their use
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United States of America Patent
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Jun 4, 1996
Grant Date -
N/A
app pub date -
Mar 31, 1993
filing date -
Apr 8, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Sheet-like polyethylene terephthalate materials having slight surface roughness consisting of dendritic, plateau-like structures having a fissured, fractal edge, a process for their preparation by exposing the surfaces to UV radiation produced by the decomposition of excimers, and the use of polyethylene terephthalate films treated in this manner as a substrate for ferromagnetic thin metal layers.
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