Process for modifying a polymeric surface

Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...

Reexamination Certificate

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C427S595000, C428S421000, C428S430000, C428S435000, C428S441000, C428S473500, C428S480000, C428S523000

Reexamination Certificate

active

06844030

ABSTRACT:
This invention concerns a process for modifying a polymeric substrate by contacting the surface with a photoreactive solution of an inorganic photochemical electron donor while irradiating the surface with actinic radiation. Patterns of modified and unmodified surfaces can be produced. Polymeric substrates with modified surfaces may be effectively bonded to polymer films to form composite articles. The process has particular applicability to the surface modification of fluorinated polymers.

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