Glass/polyvinylbutyral laminates having directional surface...

Details Glass/polyvinylbutyral laminates having directional surface... Glass/polyvinylbutyral laminates having directional surface...

B - Operations, Transporting

32

B

B32B 17/10 (2006.01) B29C 47/00 (2006.01) C03C 27/12 (2006.01)

Patent

CA 2399724

De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard can be obtained by varying certain conditions of a melt-fracture extrusion process.

Il est possible d'améliorer le désaérage de stratifiés de polyvinylbutyral/verre, tout en réduisant le trouble dans la prépresse et en réduisant le temps mort, du fait qu'on utilise une feuille de polyvinalbutyral possédant une surface rugueuse à directionalité. On peut obtenir une surface rugueuse à motif de planche à laver par variation de certaines conditions du processus d'extrusion de marques de coulée.

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