Azo compound or salt thereof, and dye-based polarizing film and dye-based polarizing plate containing same
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Sep 24, 2024
Grant Date -
N/A
app pub date -
Dec 17, 2019
filing date -
Dec 17, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
An azo compound represented by the following formula (1) or a salt thereof, Wherein
- A1 represents a naphthyl group which may have a substituent;A2, A3, and A4 each independently represent a phenyl group which may have a substituent or a naphthyl group which may have a substituent;R1 represents a hydrogen atom, a hydroxy group, a C1-4 alkoxy group, or a substituted or unsubstituted amino group;m represents an integer of 0 to 5;M represents a hydrogen atom or ion, a metal ion, or an ammonium ion;n represents 1 or 2;k represents 0 or 1; andeach hydrogen atom on ring a and ring b may be substituted with the substituent R1 or substituent SO3M.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G02B Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 24, 2028 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 24, 2032 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 24, 2036 |