Cellulose composite film, and its preparation method
US12187866B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 12, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jun 30, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2427/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cellulose composite film, and a method for producing a cellulose composite film are provided. The cellulose composite film includes a cellulose film, a primer layer that is disposed on one side of the cellulose film, and a barrier layer that is disposed on one side of the primer layer. The cellulose film includes a regenerated cellulose film, the primer layer includes polyurethane film-forming resin, and the barrier layer includes a polyvinylidene chloride (PVDC) coating with an anti-fogging agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.