Security film for shatterproofing windows

Details Security film for shatterproofing windows Security film for shatterproofing windows

1975-05-21

1977-06-07

Robinson, Ellis

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428 40, 428214, 428343, 428352, 428354, 428355, 428441, 428442, 428458, 428480, 428483, 428910, B32B 1708, B60J 106, B60J 300, B32B 1508

Patent

active

040284751

ABSTRACT:
A security film for shatterproofing windows comprises: at least two oriented polyethylene terephthalate self supporting strata having critical thicknesses for shock absorption and tensile strength, of which at least one optionally has a semi-transparent vapor deposited aluminum coat for solar control; and at least two relatively soft bonding strata having critical thicknesses for adhesion and cohesion, of which at least one is an internal copolyester stratum for bonding self supporting strata together and one is a pressure sensitive stratum at the outer surface of the film for application to window glass.

REFERENCES:
patent: R28883 (1976-06-01), Willdorf
patent: 2653885 (1953-09-01), Harper
patent: 3100760 (1963-08-01), Brown
patent: 3170833 (1965-02-01), Noyes
patent: 3290203 (1966-12-01), Antonson
patent: 3307963 (1967-03-01), Webber
patent: 3681179 (1972-08-01), Theissen
patent: 3775226 (1973-11-01), Windorf
patent: 3949134 (1976-04-01), Willdorf
patent: 3956559 (1976-05-01), Willdorf

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