(19)
(11) EP 0 323 061 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.09.1989 Bulletin 1989/36

(43) Date of publication A2:
05.07.1989 Bulletin 1989/27

(21) Application number: 88311679.0

(22) Date of filing: 09.12.1988
(51) International Patent Classification (IPC)4: B05D 1/00, B05D 3/04, B05D 3/06
(84) Designated Contracting States:
CH DE FR GB IT LI

(30) Priority: 31.12.1987 US 140024

(71) Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
St. Paul, Minnesota 55133-3427 (US)

(72) Inventor:
  • Deviny, Edward J. c/o Minnesota Mining &
    St. Paul Minnesota 55133-3427 (US)

(74) Representative: Baillie, Iain Cameron et al
c/o Ladas & Parry Altheimer Eck 2
80331 München
80331 München (DE)


(56) References cited: : 
   
       


    (54) Method for curing an organic coating using condensation heating and radiant energy


    (57) Coatings are cured by simultaneous exposure to radiant energy and condensing inert perfluoro­chemical vapors. The invention also includes an apparatus for use in curing coatings having a vessel (10) with reservoir (5) filled with inert perfluorochemical liquid (4), heated by heater (2). Cooling coils (13) and (14), for condensing perfluorochemical vapors (6), are located in the inlet (11) and outlet (12) of the vessel (10). A coating (8) on a substrate (7) is carried through the vessel (10) on a continuously moving belt (15). The coating (8) is cured by vapors (6) and radiant energy from energy source (9) passing through windows (16).





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