Laminated door to withstand vandalism and method of manufacture

Details Laminated door to withstand vandalism and method of manufacture Laminated door to withstand vandalism and method of manufacture

1985-02-13

1986-09-09

Ridgill, Jr., James L.

Static structures (e.g., buildings)

With synthetic resinous component

Nonfoam adhesive

52455, 52813, 428412, E04C 100

Patent

active

046101195

ABSTRACT:
A laminated exterior door has two polycarbonate sheets adhesively bonded to a composite substrate. The complementary surfaces of the polycarbonate sheets and the substrate are each abraded to a maximum depth of about 0.005 inch, and a pressure of about 100 p.s.i. is exerted to effect the adhesive bond. After bonding, the adhesive remains sufficiently "tacky" to accommodate the different coefficients of expansion between the polycarbonate sheets and the substrate. As a result, the laminated door has relatively-high impact resistance for withstanding vandalism, forced entry, burglary or the like.

REFERENCES:
patent: 2717187 (1955-09-01), Morgan et al.
patent: 3657057 (1972-04-01), Shorr et al.
patent: 3681167 (1972-08-01), Moore
patent: 3810815 (1974-05-01), Welhart et al.
patent: 4075804 (1978-02-01), Zimmerman
patent: 4279414 (1981-07-01), Kammerman
General Electric Publication, Technical Report CDC-502 dated Jan. 18, 1962, 11 pages.

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