Process for the manufacture of photopolymer plates

Details Process for the manufacture of photopolymer plates Process for the manufacture of photopolymer plates

B - Operations, Transporting

29

B

18/1020, 18/1030

B29B 7/46 (2006.01) B29B 7/84 (2006.01) B29C 31/04 (2006.01) B29C 43/24 (2006.01) B29C 43/30 (2006.01) B29C 55/02 (2006.01) G03F 7/16 (2006.01) B29C 35/08 (2006.01)

Patent

CA 2036302

Abstract of the Disclosure A continuous process for the manufacture of photopolymer plates having a precise and constant thickness in which the components of the photo- polymer layer are melted in a screw extruder, the melt is conveyed to the sheet die by means of a gear pump and then into a roll gap of a calender, wherein the melt leaving the sheet die does not form a rotating bead in the calender gap downstream therefrom. The photopolymer plates prepared in this manner have high homogeneity of the components of the photopolymerizable mixture, have a highly precise and constant thickness, are transparent, do not tend to form specks and guarantee a long shelf life.

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