Multilayered safety glass

Details Multilayered safety glass Multilayered safety glass

1969-06-09

1978-12-19

Bentley, Stephen C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428215, 428217, 428437, 428911, B32B 702, F41H 526

Patent

active

041306848

ABSTRACT:
A multilayered safety glass laminate comprising a plurality of alternate plies of glass and thermoplastic transparent interlayers of plasticized polyvinyl butyral resin arranged to provide an impact striking section, a transition section and an impact absorption section. The plasticizer content of the resin in the impact striking section is relatively low to impair projectile penetration and that of the plasticized polyvinyl butyral in the transition section and, if present, in the impact absorption section, relatively high to reduce the severity of spall.

REFERENCES:
patent: 3424642 (1969-01-01), Orcutt
patent: 3437552 (1969-04-01), Bowen

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