Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1981-11-24
1983-06-14
Massie, Jerome W.
Stock material or miscellaneous articles
Composite
Of polyamidoester
156229, 15624424, 1562722, 156280, 350337, 350397, 428483, 428520, 428522, B32B 2740, G02F 113
Patent
active
043883753
ABSTRACT:
A polarizer having increased hydrolytic stability is produced by impregnating a polyvinyl alcohol substrate with an iodine containing composition and then subjecting the substrate to both concentrated infrared and ultraviolet radiation treatments sufficient to substantially increase the hydrolytic stability of the thusly formed polarizer. The polyvinyl alcohol film had been laminated to a polyester support with a dispersed, aqueous composition of polyvinyl alcohol or polyurethane on its surface.
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Bolt Lawrence
Hopper Michael J.
Martin Michael R.
Smith Michael
Tavasolian Ali
American Hoechst Corporation
Massie Jerome W.
Roberts Richard S.
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