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US 12,686,732 B2Granted
Ionomer composition and ionomer film prepared therefrom
AssigneesSK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
InventorsYong Zheng, Soon Min Kwon, Ki Yup Kim, Sang Yeup Lee
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Abstract
Provided are an ionomer composition including silica particles which satisfy a specific equation and are acidic in an aqueous solution state and an ionomer film produced therefrom. The ionomer composition has excellent miscibility, and when a film is produced using the composition, surface appearance such as transparency is well-improved, and wear resistance, coefficient of friction, and the like of the film are significantly improved.
Claims15
An ionomer composition comprising:
- an ethylene-(meth)acrylic acid ionomer and silica particles, wherein an aqueous solution comprising the silica particles at a concentration of 50 mg/ml has an acidic pH, and the silica particles satisfy the following Equation 1:
- V
- pore
- A
- ×
- Dv
-
- (
- 50
- )
- ≥
- 0.1
- [
- Equation
-
- 1
- ]
- wherein
- Vpore is a pore volume (ml/g), A is an effective area (m2/kg), and Dv(50) is a particle diameter (μm) corresponding to 50% of volume accumulation of a particle size distribution.
16 more elements
Dependencies are inferred from the claim text.