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US 2007/0167327 A1Published application
Biodegradable bag containing superabsorbent polymers
OwnerMilan Savich, John Grahaminventors
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Abstract
An agricultural supplement delivery article for delivering superabsorbent polymer (“SAP”) particles is disclosed. The delivery article comprises a porous, biodegradable packet containing SAP particles. The biodegradable packet may optionally include additives, such as fertilizers, herbicides, pesticides, fungicides and/or other growth-promoting additives and nutrients.
Claims24
An agricultural supplement delivery article, comprising:
- a packet constructed of biodegradable material;
- and
- an agricultural supplement matrix contained within the biodegradable packet;
- wherein the agricultural supplement matrix includes superabsorbent polymer particles comprising monomers that are at least one of the following:
- acrylonitrile, acrylic acid, methacrylamide, 2-acrylamido-2-methyl-propanesulfonic acid, methacrylic acid, vinyl sulfonic acid, ethyl acrylate, potassium acrylate, and derivatives and mixtures thereof
2 more elements
An article for localizing superabsorbent polymers in agricultural applications, comprising:
- a bag configured to biodegrade over time when planted adjacent a root zone of a plant;
- and
- superabsorbent polymer particles contained within the biodegradable bag;
- wherein the superabsorbent polymer is a starch graft copolymer.
1 more element
A method for delivering a superabsorbent polymer in agricultural applications, comprising:
- obtaining a biodegradable bag containing superabsorbent polymer particles, the superabsorbent polymer comprising a starch graft copolymer;
- and
- placing the biodegradable bag adjacent an actual or anticipated location of a root system of a plant.
Dependencies are inferred from the claim text.