The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1988
Filed:
Jul. 29, 1987
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Abstract
New 2,4,5,6-tetra-aminopyrimidine derivatives corresponding to the following general formula ##STR1## in which R.sup.1 is a group of the formula --NH--(CH.sub.2).sub.n --NH--, where n=2-4, a group of the formula --NH--CH.sub.2 --CH(OH)--CH.sub.2 --NH-- or a group of the formula ##STR2## R.sup.2 and R.sup.3 independently of one another represent hydrogen, chlorine or a group of the formula --OR.sup.4 where R.sup.4 is a C.sub.1 -C.sub.4 alkyl group and A is a CH group or a nitrogen atom, and salts thereof. The compounds are suitable as developer components for oxidation hair dyes which, in conjunction with a number of standard coupler compounds, form a wide range of brilliant colors with high absorptive power on human hair and good fastness properties.