Absorbent foam products
AssigneeJohnson & Johnson
InventorRalf Korpman
Life of this patent
Estimating the term…
Abstract
A foam product having both absorptive and cushioning properties is prepared from a solid, particulate, water-insoluble, water-swellable polymer having a gel capacity of at least 10, a solid, particulate blowing agent, and a liquid polyhydroxy organic compound. Foamable compositions and articles employing the foam are also described.
Claims19
An absorbent foam product prepared by mixing together a solid, particulate, water-insoluble, water-swellable polymer having a gel capacity of at least 10, a solid, particulate blowing agent, and a liquid polyhydroxy organic compound and allowing the mixture to foam.
A absorbent foam forming composition comprising relative proportions of
- (a) 25 to 125 parts by weight of a solid, particulate, water-insoluble, water-swellable polymer having a gel capacity of at least 10 as absorbent,
- (b) 100 parts by weight of a liquid polyhydroxy organic compound, and
- (c) 2 to 30 parts by weight of a solid, particulate blowing agent.
An absorbent article comprising a foam coated substrate, said foam coated substrate obtained by (a) mixing together a solid, particulate, water-insoluble, water-swellable polymer having a gel capacity of at least 10, a solid, particulate blowing agent, and a liquid polyhydroxy organic compound to obtain a foamable composition, (b) coating said composition onto a substrate, and (c) allowing the mixture to foam.
A dual walled container for transporting aqueous fluids having a breakable inner wall and a non-breakable outer wall and having in a portion of the space between the two containers walls, a foam prepared by mixing together solid, particulate, water-insoluble, water-swellable polymer having a gel capacityy of at least 10, a solid, particulate blowing agent, and a liquid polyhydroxy organic compound and allowing the mixture to foam.
Dependencies are inferred from the claim text.