Cellulose ester and polymeric aliphatic polyester compositions and articles
US11873390B2 · kind B2 · utility
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28References
20Claims
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Key dates
| Filing date | Feb 13, 2019 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | May 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/68
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A cellulose ester composition is provided comprising at least one cellulose ester, at least one polymeric aliphatic polyester, at least one impact modifier, and at least one monomeric plasticizer. Processes for producing the cellulose ester compositions as well as articles made using these compositions, such as eyeglass or sunglass frames and/or lenses, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.