Resin composition, nonwoven fabric and film of biodegradable polyester, and preparation method thereof
US12338319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2021 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Dec 26, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The embodiments relate to a biodegradable polyester resin composition, to a nonwoven fabric, to a film, and to processes for preparing the same in which the biodegradable polyester resin composition comprises a specific diol component and a specific dicarboxylic acid component and may further comprise nanocellulose, whereby the biodegradability, flexibility, strength, and processability are enhanced. Since the biodegradable polyester resin composition has enhanced biodegradability, flexibility, strength, and processability as compared with the conventional natural biodegradable polymer widely used, it can be applied to various fields such as films, packaging materials, and nonwoven fabrics to show excellent characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.