Paperboard coated to minimize browning

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified

Patent

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Details

427395, 427411, 4274192, 428352, 428514, 428913, B32B 2300, B32B 2308

Patent

active

044218257

ABSTRACT:
The browning of paperboard subjected to temperatures of up to about 205.degree. C. is minimized by applying to the paperboard a first coating comprising titanium dioxide and an acrylic copolymer and one or more over-coatings comprising a clear acrylic copolymer.

REFERENCES:
patent: 2889299 (1959-06-01), Ritson
patent: 3297615 (1967-01-01), Frazier et al.
patent: 3365410 (1968-01-01), Wesslau et al.

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