Polarizing film

Details Polarizing film Polarizing film

1981-07-31

1984-01-24

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

350337, 350370, 427163, 428 1, 428339, 428411, 428412, 428419, 428480, 428483, 4284761, 4284763, G02B 530, B32B 2734, B32B 2736

Patent

active

044277415

ABSTRACT:
A polarizing film comprising (a) a polarizer and (b) a film formed on at least one surface of the polarizer from a member selected from the group consisting of thermoplastic polycarbonates, polysulfones, polyethersulfones, polyesters, polyamides and poly(estercarbonate)s' and having a retardation .delta. of about 500 nm or less with the retardation .delta. being calculated by the following equation:

REFERENCES:
patent: 2237567 (1941-04-01), Land
patent: 2306108 (1942-12-01), Land
patent: 2328219 (1943-08-01), Land
patent: 4229498 (1980-10-01), Suzuki
patent: 4230768 (1980-10-01), Hamada
patent: 4268127 (1981-05-01), Oshima
patent: 4345000 (1982-08-01), Kawazoe
patent: 4387133 (1983-07-01), Ichikawa

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