Naphtholactamtrimethine dyes and optical recording medium contai

Details Naphtholactamtrimethine dyes and optical recording medium contai Naphtholactamtrimethine dyes and optical recording medium contai

1988-11-17

1991-03-26

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430270, 430945, 544300, 548436, G11B 724, C07D20990, C07D40314

Patent

active

050028634

ABSTRACT:
Naphtholactamtrimethine dyes useful in optical recording media have the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each is independently of the others C.sub.1 -C.sub.22 -alkyl, which may be substituted and/or interrupted by one or more oxygen atoms, one or more imino groups or one or more C.sub.1 -C.sub.4 -alkylimino groups, or is substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted phenyl, and the rings A, B, C and D may each be substituted and/or benzofused.

REFERENCES:
patent: 4009165 (1977-02-01), Schefczik
patent: 4830951 (1989-05-01), Dust et al.
patent: 4876356 (1989-10-01), Dust et al.

Affiliated with

Also associated with

Rating

Naphtholactamtrimethine dyes and optical recording medium contai does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Naphtholactamtrimethine dyes and optical recording medium contai, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Naphtholactamtrimethine dyes and optical recording medium contai will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-616814