Patent ID: 11939569
Assignee: EVOCO LIMITED
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of producing a biodegradable foam, comprising:
a) mixing polyester polyol with
i) one or more catalysts,
ii) water, and
iii) soil-dwelling carbon-digesting bacteria, or a soil-dwelling carbon digesting bacteria embedded in a carrier compound to produce a mixture, and

b) mixing isocyanate into said mixture to induce a chemical reaction between the isocyanate and the water to produce carbon dioxide gas, and simultaneously induce a chemical reaction between the isocyanate and the polyester polyol to produce a polyester based polyurethane polymer with carbon dioxide bubbles trapped within to produce said biodegradable polyester-based polyurethane foam, said biodegradable polyester-based polyurethane foam characterized in that it exhibits biodegradation rates which are higher than the same polyester-based polyurethane foam absent the soil-dwelling carbon-digesting bacteria.