Biodegradable molded article and biodegradable polyester resin composition
US11898004B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 19, 2023 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | May 19, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An eco-friendly biodegradable molded article, which includes a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein a biodegradability per hydrolysis degree of the biodegradable molded article is 1.35 or more, wherein the biodegradability per hydrolysis degree is obtained by dividing a biodegradability after nine weeks by a hydrolysis degree after one week, wherein the biodegradability after nine weeks and the hydrolysis degree after one week are measured by a measurement method below.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.