Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-02-06
1976-03-30
Tillman, Murray
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 25H, 260 25HA, 260260HB, 260 306R, 260 308R, 260 318AN, 260 318G, 260 318H, 260 326R, 260 326N, 260 326PQ, 260 334R, 260 334PQ, 260 336UA, 260 336PQ, C08F 4710, C08J 128
Patent
active
039473872
ABSTRACT:
This invention relates to novel foamed polymeric products which are prepared by foaming an ionic polymer in the presence of a volatile polar compound which acts as a plasticizer for the ionic groups present in said ionic polymer. The ionic polymer comprises from about 0.4 to 10 mole % pendant acid groups, especially sulfonic acid groups which have been neutralized to a degree of at least 97%, preferably 100%. In a most preferred embodiment of the instant invention, the foamed polymeric product is prepared from a sulfonated polystyrene polymer. This high strength, low density foam of the instant invention can be reprocessed by admixing with a low boiling solvent for the sulfonate groups, e.g., methanol, and repeating the above foaming process.
REFERENCES:
patent: 2764563 (1956-09-01), McMaster et al.
patent: 2764576 (1956-09-01), Blaser
patent: 2928130 (1960-03-01), Gray
patent: 3098832 (1963-07-01), Pooley et al.
patent: 3322734 (1967-05-01), Rees
patent: 3452123 (1969-06-01), Beckmann et al.
patent: 3522222 (1970-07-01), Taylor
patent: 3522223 (1970-07-01), Taylor
patent: 3577357 (1971-05-01), Winkler
patent: 3663466 (1972-05-01), Jablonski
patent: 3676378 (1972-07-01), Heil et al.
C. J. Bennings, "Plastic Foams" II, Appendix AII, (Wiley Interscience, 1969).
Baran R. J.
De Benedictis, Sr. T.
Exxon Research and Engineering Co.
Tillman Murray
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