Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Patent
1992-07-01
1993-05-04
Cannon, James C.
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
219203, 219522, 338308, 359 62, 359 77, 359 80, 359 81, 428 38, 428 46, 428 48, 428 56, 428 61, 428 76, 428 78, 428119, 428203, 428213, 428189, 428412, 428437, 428483, 428520, 428917, B32B 1710, C03C 2712, G02F 113
Patent
active
052080803
ABSTRACT:
A method is disclosed for producing superior optically clear laminates having a sheet of semi-rigid material encapsulated in a thermoplastic interlayer between layers of rigid material such as glass. Pre-cooled laminate elements are assembled at reduced temperature, allowing positioning of the sheet of semi-rigid material in the interlayer of the assembly with minimal wrinkling, formation of air bubbles or entrapment of moisture. Thereafter, the laminate assembly is maintained under vacuum for an extended period of time, substantially eliminating wrinkling, air bubbles and moisture from between the laminate elements as well as pre-forming the semi-rigid sheet. Bonding heat and pressure is then applied, first heating the assembly to "tack" the laminate elements together, and next applying heat and pressure for bonding the laminate elements. Superior optically clear laminates which result from the method are disclosed wherein a semi-rigid sheet of material is encapsulated in thermoplastic laminating material within an interlayer between sheets of rigid material such as glass.
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Gajewski Kenneth J.
Meyer John H.
Cannon James C.
Ellerbrock Charles
Ford Motor Company
May Roger L.
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