Ethylene vinyl alcohol copolymer resin composition, ethylene vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the same
US11566091B2 · kind B2 · utility
0Cited by
3References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 22, 2022 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 22, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2329/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 μm, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.