Biodegradable coated substrates
AssigneeThe Procter & Gamble Company
InventorsIsao Noda, Michael Matthew Satkowski
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Abstract
Coated substrates include a coating and a substrate is selected from the group consisting of paper, fabric, thread and yarn. The coating comprises a biodegradable polyhydroxyalkanoate copolymer, wherein the biodegradable polyhydroxyalkanoate copolymer comprises a first randomly repeating monomer unit having the structure: 1 wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and a second randomly repeating monomer unit having the structure: 2 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.
Claims20
A coated substrate comprising a substrate and a coating comprising a biodegradable polyhydroxyalkanoate copolymer, wherein the biodegradable polyhydroxyalkanoate copolymer comprises a first randomly repeating monomer unit having the structure:
- 22
- wherein
- R1 is H or a C1-2 alkyl, and n is 1 or 2;
- and
- a second randomly repeating monomer unit having the structure:
- 23
- 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 substrate is selected from the group consisting of paper, fabric, thread and yarn.
A method of improving the resistance to grease of a subtrate, comprising the step of applying a coating to a substrate selected from the group consisting of paper, fabric, thread and yarn, wherein the coating comprises a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure:
- 25
- 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:
- 26
- 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 of coating a substrate, comprising the step of applying a coating to the substrate, wherein the coating comprises a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure:
- 28
- 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:
- 29
- 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 substrate is selected from the group consisting of paper and fabric.
Dependencies are inferred from the claim text.