Patent · US Active

Optical film

US11237302B2 · kind B2 · utility

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0References

11Claims

0Family size

Assignee

SUMITOMO CHEMICAL COMPANY, LIMITED · JP

Inventors

Kazuki Daimatsu · Osaka, JP
Hitoshi Fukui · Hiroshima, JP
Masayoshi Karasawa · Nagano, JP

Key dates

Filing date	Sep 17, 2019
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Sep 17, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/04111
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

To provide an optical film having excellent visibility in a wide angle direction. An optical film including a polyimide-based resin and a polyamide-based resin and having a total light transmittance of 85% or more and a haze of 0.5% or less,

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.