Cellulose acetate fiber, cellulose acetate fiber molded article, and methods respectively for producing said cellulose acetate fiber and said cellulose acetate fiber molded article
US10889916B2 · kind B2 · utility
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1References
5Claims
0Family size
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Key dates
| Filing date | Jan 15, 2014 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided are a cellulose acetate fiber and a cellulose acetate fiber molded article which are excellent in water solubility and biodegradability and are small in load onto the natural environment even when allowed to stand still in the environment. The invention provides a cellulose acetate fiber containing cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.3 and a compositional distribution index (CDI) of 2.0 or less as well as a cellulose acetate fiber molded article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.