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US 6,617,014 B1Granted
Foam composite
AssigneeHydrophilix, LLC
InventorTimothy Thomson
Life of this patent
Estimating the term…
Abstract
A foam composite made up of a scaffold of a substantially hydrophobic foam material having plurality of surfaces defining a plurality of pores, and a coating of a substantially hydrophilic foam material disposed upon the surfaces of the hydrophobic foam. The resulting foam composite exhibits structural characteristics of the hydrophobic foam and absorbency characteristics of the hydrophilic foam.
Claims18
A foam composite comprising:
- a scaffold of a substantially reticulated hydrophobic polyurethane foam, said scaffold having a plurality of surfaces defining a plurality of pores;
- and
- a coating of a substantially open cell hydrophilic polyurethane foam disposed upon said plurality of surfaces of said hydrophobic polyurethane foam;
- wherein said foam composite exhibits structural characteristics of said hydrophobic polyurethane foam and absorbency characteristics of said open cell hydrophilic polyurethane foam.
1 more element
A composition of matter comprising:
- a volume of substantially reticulated hydrophobic polyurethane foam having a plurality of pores within the structure thereof, the surfaces of said pores being coated with hydrophilic polyurethane foam.
A composition of matter comprising:
- a volume of substantially reticulated hydrophobic polyurethane foam having from 4 to about 100 pores per linear inch and a void volume of up to 98%, said pores having a total surface area measured by the BET method of up to 2,000 ft2/ft3, and
- hydrophilic polyurethane foam coated on the surface of said pores.
Dependencies are inferred from the claim text.