Transparent laminate and adhesive film

Details Transparent laminate and adhesive film Transparent laminate and adhesive film

1976-11-05

1979-01-30

Robinson, Ellis

Stock material or miscellaneous articles

Composite

Of polycarbonate

20415914, 428442, 428429, 428520, 526 9, 526 11, 526331, 428435, B32B 2736, B32B 1710, C08F 800

Patent

active

041373642

ABSTRACT:
The invention relates to transparent or optically clear laminates and adhesive films used to make these laminates having a temperature utility range far greater than those previously developed and which are especially useful for windshields of high speed aircraft which need such a broad temperature range. These transparent adhesive films have a temperature utility in the range of -65.degree. F to at least 350.degree. F in laminates and comprise an ethylene/vinyl acetate copolymer having a vinyl acetate content in the range of 40% to 60%, the copolymer being partially hydrolyzed to form a terpolymer having a hydroxyl content in the range of 1% to 6%, the terpolymer in film form and/or laminate being heat treated and cross-linked to give the adhesive film. The laminates are made from transparent layers of glass and/or plastic bound together with the transparent adhesive film.

REFERENCES:
patent: 2399653 (1946-05-01), Roland
patent: 2448946 (1948-09-01), Alderson
patent: 3378515 (1968-04-01), Salyer
patent: 3382215 (1968-05-01), Baum
patent: 3582398 (1971-06-01), Ringler
patent: 3622440 (1971-11-01), Snedeker
patent: 3631161 (1971-12-01), Fan
patent: 3666614 (1972-05-01), Snedeker
patent: 3923757 (1975-12-01), Salyer

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