Polymers that are cross-linkable to form superabsorbent polymers
AssigneeStockhausen GmbH & Co. KG
InventorsBernfried Messner, Whei-Neen Hsu, Robert Agne
Life of this patent
Estimating the term…
Abstract
A composite of a substrate having an application of superabsorbent polymer. The composite is made by applying, directly onto the substrate, an application of a polymer that will, upon being subjected to radiation, convert to a superabsorbent polymer. The substrate with applied polymer is subjected to radiation, such as being heated at a sufficient temperature for a sufficient time, to obtain the composite of substrate with superabsorbent polymer adhered to it.
Claims48
A method for making a composite of a substrate having an application of superabsorbent polymer, said method comprising:
- (a) preparing an aqueous solution of a polymer which is formed from at least one monomer, where the polymer is capable upon being subjected to radiation from a radiation source of becoming a superabsorbent polymer;
- (b) applying the aqueous solution to a substrate;
- (c) subjecting the substrate having the applied aqueous solution to radiation from the radiation source for a sufficient time to convert the polymer into a superabsorbent polymer;
- and
- (d) obtaining a composite of a substrate having an application of superabsorbent polymer adhered to the substrate.
A composite comprising a substrate and a superabsorbent polymer adhered to the substrate, the composite prepared by the steps comprising of:
- a) selecting a substrate;
- and
- b) coating the substrate with an aqueous solution of pre-superabsorbent polymer;
- and
- c) radiating the aqueous solution of pre-superabsorbent polymer for a sufficent time to convert the aqueous solution pre-superabsorbent polymer into a superabsorbent polymer adhered to the substrate.
A method for making a composite of a substrate and a superabsorbent polymer adhered to the substrate, said method comprising:
- (a) preparing an aqueous solution of pre-superabsorbent polymer, where the aqueous solution of the pre-superabsorbent polymer is capable upon being subjected to radiation from a radiation source of becoming a superabsorbent polymer;
- (b) applying the aqueous solution of the pre-superabsorbent polymer to a substrate;
- (c) subjecting the substrate having the applied aqueous solution of the pre-superabsorbent polymer to radiation from the radiation source for a sufficient time to convert the pre-superabsorbent polymer into a superabsorbent polymer;
- and
- (d) obtaining a composite of a substrate having an application of superabsorbent polymer adhered to the substrate.
Dependencies are inferred from the claim text.