(19)
(11) EP 0 396 604 A1

(12)

(43) Date of publication:
14.11.1990 Bulletin 1990/46

(21) Application number: 89901608.0

(22) Date of filing: 20.01.1989
(51) International Patent Classification (IPC): 
B29B 13/ 02( . )
B29C 47/ 80( . )
(86) International application number:
PCT/SE1989/000017
(87) International publication number:
WO 1989/006593 (27.07.1989 Gazette 1989/16)
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 20.01.1988 SE 19880000175

(71) Applicant: NILSSON, Bo
S-740 71 Öregrund (SE)

(72) Inventor:
  • NILSSON, Bo
    S-740 71 Öregrund (SE)

(74) Representative: Bjellman, Lennart Olov Henrik, et al 
DR. LUDWIG BRANN PATENTBYRA AB Box 1344
S-751 43 Uppsala
S-751 43 Uppsala (SE)

   


(54) A METHOD AND A DEVICE FOR CHANGING THE TEMPERATURE OF A PLASTIC MELT BY COOLING OR HEATING THE SAME