(19)
(11) EP 0 193 326 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.10.1987 Bulletin 1987/44

(43) Date of publication A2:
03.09.1986 Bulletin 1986/36

(21) Application number: 86301079

(22) Date of filing: 17.02.1986
(84) Designated Contracting States:
BE DE FR GB IT

(30) Priority: 18.02.1985 FI 850663

(71) Applicant: OY WILH.SCHAUMAN AB
 ()

(72) Inventors:
  • Pekkinen, Pertti Einari
     ()
  • Maenpaa, Antti Samuli
     ()

   


(54) Method for lowering the formaldehyde content in a glued timber board


(57) Method for lowering the formaldehyde content in a timber board (10) by into the board absorbing a solution (4) that contains ammonia by compressing by means of a resilient-faced grooved revolving roll (1).






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