Agricultural items and agricultural methods comprising biodegradable copolymers
AssigneeThe Procter & Gamble Company
InventorsIsao Noda, Michael Matthew Satkowski
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Abstract
An agricultural item comprising a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units. The first randomly repeating monomer unit has the structure: 1 wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and the second randomly repeating monomer unit has the structure: 2 wherein R2 is a C3-19 alkyl or a C3-19 alkenyl. At least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.
Claims20
An agricultural item comprising a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure:
- 20
- wherein R1 is H or a C1-2 alkyl, and n is 1 or 2;
- and
- the second randomly repeating monomer unit has the structure:
- 21
- wherein R2 is a C3-19 alkyl or a C3-19 alkenyl;
- and
- wherein at least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit;
- and wherein the agricultural item is selected from the group consisting of erosion control covers, nets, pots, wreath rings, mulches, plant stakes, labels, twines, ropes, seed-containing devices, chemical-containing devices, encapsulated seeds, encapsulated chemicals, plant coatings and mixtures thereof.
A method of treating a plant comprising the step of contacting at least a portion of a plant with a composition comprising a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure:
- 23
- wherein R1 is H or a C1-2 alkyl, and n is 1 or 2;
- and
- the second randomly repeating monomer unit has the structure:
- 24
- wherein R2 is a C3-19 alkyl or a C3-19 alkenyl;
- and
- wherein at least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.
A method for the controlled release of a chemical comprising treating the chemical with a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure:
- 26
- wherein R1 is H or a C1-2 alkyl, and n is 1 or 2;
- and
- the second randomly repeating monomer unit has the structure:
- 27
- wherein R2 is a C3-19 alkyl or a C3-19 alkenyl;
- and
- wherein at least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.
Dependencies are inferred from the claim text.