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US 2026/0226206 A1Published application
Polyvinyl alcohol resin, film roll, and polyvinyl acetal resin
AssigneeSekisui Chemical Co., Ltd.
InventorKenichi OOTSUKI
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Abstract
The present invention provides a polyvinyl alcohol resin that can provide a film having high capacitance retention at high temperature and having excellent strength and flexibility. Provided is a polyvinyl alcohol resin satisfying the following formulas (1) and (2): A ≥ 3. ( 1 ) 1. ≥ B / A ≥ 0. 6 ( 2 ) where A is a permittivity at 25° C. measured at 1 KHz, and B is a permittivity at 125° C. measured at 1 kHz.
Claims5
A polyvinyl alcohol resin satisfying the following formulas (1) and (2):
- A
- ≥
- 3.
- (
- 1
- )
- 1.
- ≥
- B
- /
- A
- ≥
- 0
- .
- 6
- (
- 2
- )
- where A is a permittivity at 25° C. measured at 1 KHz, and B is a permittivity at 125° C. measured at 1 kHz.
16 more elements
Dependencies are inferred from the claim text.