Oil sorbent material made by opening cells of a closed cell foam

Details Oil sorbent material made by opening cells of a closed cell foam Oil sorbent material made by opening cells of a closed cell foam

1977-10-27

1980-01-15

Spear, Jr., Frank A.

Stock material or miscellaneous articles

Perimeter or corner structure of sheet

210DIG26, 210242AS, 2524255, 252426, 428131, 521905, B01D 3916, B01J 122, C02B 902, C08J 936

Patent

active

041839846

ABSTRACT:
Closed cells in a flexible foam structure and preferably a polyethylene foam sheet are opened, suitably by needle punching, to increase the oil sorbency of the pad. One embodiment uses needle punching which does not pass all the way through the sheet, thus blocking passage of oil therethrough. Another embodiment employs unpunched strips for prevention of migration of the oil or for buoyancy purposes.

REFERENCES:
patent: 3048537 (1962-08-01), Pall et al.
patent: 3098832 (1963-07-01), Pooley et al.
patent: 3426902 (1969-02-01), Kilpert et al.
patent: 3669275 (1972-06-01), Downs
patent: 3679540 (1972-07-01), Zimmerman
patent: 3862963 (1975-01-01), Hoshi et al.
patent: 3960722 (1976-06-01), Tomikawa et al.
patent: 3994759 (1976-11-01), Stoller
patent: 4005169 (1977-01-01), Cumbers

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