Light-transmitting laminated panel and method of improving its i

Details Light-transmitting laminated panel and method of improving its i Light-transmitting laminated panel and method of improving its i

1994-09-29

1996-01-09

Nakarani, D. S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

156 99, 156106, 428436, 428437, 428524, B32B 516, B32B 1710

Patent

active

054827671

ABSTRACT:
A light-transmitting laminated panel having increased resistance to impact-induced rupture sequentially includes: a) a glass layer, b) an optically clear layer of a plasticized polyvinyl butyral matrix containing discrete particles of crosslinked polyvinyl butyral integrally randomly dispersed throughout the matrix which enhance the impact-resistance of the panel and are visually indistinguishable from the matrix polyvinyl butyral, and c) another glass layer, the laminated panel at a specific pummel adhesion having greater mean break height than that of a laminated panel containing layers a), b) and c) but without the impact-resistance-enhancing particles of crosslinked polyvinyl butyral in layer b). An amount up to 40 weight % of the particles is incorporated into the matrix polyvinyl butyral before preparing the laminated panel.

REFERENCES:
patent: 4180620 (1979-12-01), Inskip
patent: 4654179 (1987-03-01), Cartier et al.
patent: 5246764 (1993-09-01), LaPorte et al.

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