Dielectric coating compositions and recording sheets made theref

Details Dielectric coating compositions and recording sheets made theref Dielectric coating compositions and recording sheets made theref

1979-02-15

1980-06-17

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of polyester

260 22CQ, 428481, 428511, 428913, 528305, 528309, B32B 2736, C08G 6318

Patent

active

042084679

ABSTRACT:
Coating compositions useful as a dielectric layer for electrostatic recording sheet material are disclosed. The compositions comprise a polyester derived mainly from terephthalic acid and 1,2-propanediol. Minor amounts of isophthalic acid and ethylene glycol may be included. Preferably, the compositions include an ester prepared from gum, wood and/or tall oil rosin in an amount of up to about 70% based on the combined weight of polyester and rosin ester.

REFERENCES:
patent: 2404033 (1946-07-01), Burrell
patent: 2590910 (1952-04-01), Wittcoff et al.
patent: 3075859 (1963-01-01), Relph
patent: 3436376 (1969-01-01), Duling
patent: 3686361 (1972-08-01), DeWitt et al.
patent: 3714126 (1973-01-01), Reid

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