Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By gas forming or expanding
Patent
1976-05-12
1978-04-11
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By gas forming or expanding
106 20, 260 25H, 260 25P, 260 296MN, 264DIG5, B29D 2704
Patent
active
040839079
ABSTRACT:
An aqueous-alcoholic, foam-growth-controlling printing ink composition having a pH in the range of from about 8 to about 12 of use in the chemical embossing of heat-foamable and expandable resinous materials comprising: (1) from about 1% to about 15% of a foam-growth-controlling chemical agent, such as benzotriazole; (2) from about 1% to about 9% of a water-soluble or water-dispersible alcohol having from 1 to 6 carbon atoms, such as isopropanol; (3) from about 1% to about 11% of a pH controlling or buffering agent, such as ammonia or a water-soluble or water-dispersible alkylaminoalcohol having from 2 to 10 carbon atoms, such as 2-dimethylaminoalcohol, capable of creating or maintaining the pH of the aqueous-alcoholic, foam-growth-controlling printing ink composition in the range of from about 8 to about 12; (4) from about 30% to about 75% of an aqueous printing ink composition; and (5) from about 10% to about 40% of added water, all these percentages being by weight. Processes of applying such aqueous-alcoholic, foam-growth-controlling printing ink compositions to such heat-foamable and expandable resinous materials are also included.
REFERENCES:
patent: 3293094 (1966-12-01), Nairn et al.
patent: 3293108 (1966-12-01), Nairn et al.
patent: 3819783 (1974-06-01), Jones
"The Condensed Chemical Dictionary," Eighth Edition, revised by Gessner G. Hawley, New York, Van Nostrand, Reinhold, 1971, pp. 40 and 103.
Anderson Philip
Congoleum Corporation
Laughlin Richard T.
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