Coating paper with copolyester

Details Coating paper with copolyester Coating paper with copolyester

1992-11-23

1994-03-15

Sluby, P. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428481, 428514, 428522, 2641761, 220458, B32B 516, B32B 2710, B65D 1102

Patent

active

052944832

ABSTRACT:
Disclosed is a method of providing a thin copolyester coating on paper wherein the coating has good peel strength which comprises extruding a film of copolyester onto paper to form a coated sheet and passing the paper through a nip formed by a pair of cooperating chill and pressure rolls, wherein the copolyester consists essentially of repeat units from terephthalic acid, ethylene glycol, about 1.5-20 mol % of an aliphatic or cycloaliphatic glycol having 2 to 10 carbon atoms, and 0 to about 1.0 mol % of a polyfunctional branching agent. Also disclosed is the coated paper prepared by this method.

REFERENCES:
patent: 4156774 (1979-05-01), Buxbaum et al.
patent: 4352925 (1982-10-01), Petke et al.
patent: 4381356 (1983-04-01), Marsh
patent: 4543280 (1985-09-01), Fjuita et al.
patent: 5132391 (1992-07-01), White et al.

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