Patent · US Active

Polycarbonate resin, method for producing same, and optical lens

US11286342B2 · kind B2 · utility

1Cited by

2References

19Claims

0Family size

Assignee

Mitsubishi Gas Chemical Company, Inc. · JP

Inventors

Noriyuki Kato · Nara, JP
Mitsuteru Kondo · Tokyo, JP
Kentaro Ishihara · Tokyo, JP
Munenori Shiratake · Tokyo, JP
Koji Hirose · Tokyo, JP
Shinya Ikeda · Tokyo, JP
Kensuke Oshima · Tokyo, JP
Shuya Nagayama · Nagasaki, JP
Shoko SUZUKI · Tokyo, JP

Key dates

Filing date	Jul 29, 2020
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Aug 11, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02B1/041
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polycarbonate resin having a high refractive index, low Abbe number, and high moist heat resistance that includes structural units represented by general formula (1):

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