Highly absorbent open cell polymer foam and food package comprised thereof
First Claim
1. A highly absorptive open cell polymer foam, wherein:
- (a) said polymer foam is of between 50 to about 90 percent open cells;
(b) said polymer foam has an average cell diameter of between about 1 and about 10 thousandths of an inch;
(c) said polymer foam has a ratio of cell size to pore size of about 1 to about 10;
(d) said polymer foam has a density of between 1 and about 20 pounds per cubic foot; and
(e) said polymer foam has a contact angle when placed with water of about 0 to 70 degrees.
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0 Petitions
Accused Products
Abstract
A highly absorptive open cell foam having a ratio of cell size to pore size of between about 1 and about 10. A juice absorbing food package comprising a tray having a bottom bounded by an upwardly extending lip around the perimeter of the bottom and a liquid-absorbing pad comprised of polymer foam joined to the bottom of said tray, wherein the polymer foam is a highly absorptive open cell foam having a ratio of cell size to pore size of between about 1 and about 10. The tray of the juice-absorbing package may be overwrapped with gas permeable film, and may be provided with an oxygen absorbing substance therein. Alternatively, the overwrapped tray may be placed in a sealed barrier bag that is subsequently purged with a non-oxidizing gas such as carbon dioxide.
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Citations
21 Claims
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1. A highly absorptive open cell polymer foam, wherein:
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(a) said polymer foam is of between 50 to about 90 percent open cells; (b) said polymer foam has an average cell diameter of between about 1 and about 10 thousandths of an inch; (c) said polymer foam has a ratio of cell size to pore size of about 1 to about 10; (d) said polymer foam has a density of between 1 and about 20 pounds per cubic foot; and (e) said polymer foam has a contact angle when placed with water of about 0 to 70 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A food package comprising a tray having a bottom bounded by an upwardly extending lip around the perimeter of said bottom and a liquid-absorbing pad comprised of polymer foam joined to said bottom of said tray, wherein:
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(a) said polymer foam is comprised of between 50 to about 90 percent open cells; (b) said polymer foam has an average cell diameter of between about 1 and about 10 thousandths of an inch; (c) said polymer foam has a ratio of cell size to pore size of about 1 to about 10; (d) said polymer foam has a density of between 1 and about 20 pounds per cubic foot; and (e) said polymer foam has a contact angle when placed with water of about 0 to 70 degrees. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification