Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work
Patent
1994-05-23
1995-05-30
Chiesa, Richard L.
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
427569, 427570, 525408, 525411, B29C 7104
Patent
active
054198615
ABSTRACT:
A method for improving the paintability of a shaped object of which at least the outer portion is made of a polyamide/polyolefin alloy, wherein an electrical discharge is made to act on a gas in order to create a cold plasma type reactive gas stream, and the shaped object is brought into contact with the reactive gas stream thereby produced and with an oxygen source in order to oxidize the surface of the shaped object. The method is particularly useful for treating trim for motor vehicles as well as items of garden furniture prior to painting.
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Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Edition, Supplement Volume, p. 614, undated.
NF Standard T30-038, Norme Francaise, Nov., 1975, pp. 584-589.
ASTM D 3359-87, "Standard Test Methods For Measuring Adhesion By Tape Test", pp. 507-509, Sep., 1987.
Chiesa Richard L.
Elf Aquitaine Production
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