Tetra dye mixed with another dye or dyes for optical recording elements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Oct 16, 1996
filing date -
Oct 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dye mixture having, at 780 nm, a real refractive index not less than 1.8, and an imaginary part not greater than 0.15 and comprising (a) a tetra dye having a metallized azo dianionic dye with a cationic dye counterion and (b) at least one other dye having the structure according to formula I: ##STR1## wherein: A may be equal to or different from A.sup.1, in which each represents an aryl group having 6 to 10 carbon atoms; B may be equal to or different from B.sup.1, in which each ##STR2## R and R.sup.1 represent an alkyl group of C.sub.1 -C.sub.10 or an aryl group having 6 to 10 carbon atoms; and X represents halide, ClO.sub.4, BF.sub.4, PF.sub.6, tosylate and RCOO.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully