Stock material or miscellaneous articles – Structurally defined web or sheet – Physical dimension specified
Patent
1994-01-07
1994-09-20
Foelak, Morton
Stock material or miscellaneous articles
Structurally defined web or sheet
Physical dimension specified
4283199, 521 79, 521142, 521143, B32B 520
Patent
active
053487958
ABSTRACT:
Disclosed is a process for making a low density, dimensionally-stable, open-cell, extruded propylene polymer foam comprising primarily an expanded propylene polymer material wherein the foam has a blowing agent comprising greater than 85 percent by weight of one or more organic blowing agents based upon the total weight of the blowing agent. The propylene polymer material comprises more than 50 weight percent or more of propylene monomeric units based upon the total weight of the propylene polymer material. The foam has a density about 96 kilograms or less per cubic meter. The foam is greater than 20 percent open cell.
REFERENCES:
patent: 3481455 (1969-12-01), Graham et al.
patent: 3637458 (1972-01-01), Parrish
patent: 3871897 (1975-03-01), Ealding
patent: 3932569 (1976-01-01), Fuss
patent: 4054550 (1977-10-01), Parker et al.
patent: 4232130 (1980-11-01), Baxter et al.
patent: 4298706 (1981-11-01), Ueno et al.
patent: 4522955 (1985-06-01), Fukushima et al.
patent: 4714716 (1987-12-01), Park
patent: 4832770 (1989-05-01), Nojiri et al.
Dean Jr. J. Robert
Foelak Morton
The Dow Chemical Company
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