Security film for shatterproofing windows

Details Security film for shatterproofing windows Security film for shatterproofing windows

1975-07-21

1978-02-21

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

156 71, 156 99, 156104, 156106, 156307, 156308, 428 40, 428334, 428335, 428336, 428424, 428458, B44F 100, B32B 1706

Patent

active

040753867

ABSTRACT:
A security film for shatter-proofing windows comprises a polyurethane stratum interposed between a pair of polyester strata, each of which is self supporting, the film being bonded to the inner face of the window by a pressure sensitive adhesive.

REFERENCES:
patent: 1999253 (1935-04-01), Norris
patent: 3438846 (1969-04-01), Cohen et al.
patent: 3657057 (1972-04-01), Shorr et al.
patent: 3703426 (1972-11-01), Larson et al.
patent: 3775226 (1973-11-01), Windorf
patent: 3891486 (1975-06-01), Willdorf
patent: 3899621 (1975-08-01), Willdorf
patent: 3949134 (1976-04-01), Willdorf

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