Isoindoline colorants

Details Isoindoline colorants Isoindoline colorants

1981-02-03

1983-08-30

Coughlan, Jr., Paul M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

106 23, 106288Q, C09B 5704

Patent

active

044018150

ABSTRACT:
Novel isoindoline colorants of the formula ##STR1## where R.sup.1 is phenyl or 1-naphthyl, which are unsubstituted or substituted by groups which do not confer solubility, R.sup.2 and R.sup.3, independently of one another, are C.sub.1 -C.sub.4 -alkyl or benzyl or R.sup.3 is hydrogen and R.sup.2 is C.sub.1 -C.sub.4 -alkyl or benzyl, or is phenyl or 1-naphthyl which are unsubstituted or substituted by groups which do not confer solubility, R.sup.1 and R.sup.2 being identical or different, and the use of these colorants.
In surface coatings, printing inks and plastics, the products give brilliant yellow to red colorations, which exhibit very good lightfastness and fastness to weathering, and good fastness to overcoating.

REFERENCES:
patent: 3794659 (1974-02-01), Leister et al.
patent: 3991054 (1976-11-01), Bock et al.

Affiliated with

Also associated with

Rating

Isoindoline colorants does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Isoindoline colorants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isoindoline colorants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-906837