Surface modification of plastic substrates

Details Surface modification of plastic substrates Surface modification of plastic substrates

1990-03-14

1992-03-24

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 14, 264 83, 4251744, B29C 3508

Patent

active

050986180

ABSTRACT:
The present invention is a process for treating plastic substrates to improve their surface properties. The process involves exposing the plastic substrate to UV radiation at wavelengths of 185 and 254 nm in the presence of atomic oxygen for about 5 to 60 minutes. The treated plastic substrates have improved wettability. The process is particularly well suited for the treatment of plastic intraocular lenses and plastic packaging materials such as PVC film.

REFERENCES:
patent: 4315808 (1982-02-01), Imada et al.
patent: 4317788 (1982-03-01), Imada et al.
patent: 4879073 (1989-11-01), Kromrey
patent: 4933123 (1990-06-01), Yoshida et al.

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