Studies on Nonpeptide Angiotensin II Receptor Antagonists. I. Synthesis and Biological Evaluation of Pyrazolo(1,5-b)(1,2,4)triazole Derivatives with Alkyl Substituents.
Dyeing compositions for keratinous fibres containing paraphenylenediamine derivatives with pyrrolidinyl group
申请人:——
公开号:US20030093866A1
公开(公告)日:2003-05-22
The invention concerns novel dyeing compositions for keratinous fibers comprising at least a paraphenylenediamine derivative with pyrrolidinyl group as oxidation base, a dyeing method and a dyeing kit using said composition.
A composition for dyeing keratinous fiber which includes incorporated therein an oxidative color-developing substance, an enzyme which reacts with oxygen as a substrate but does not evolve hydrogen peroxide, and a weak reducing agent.
一种用于染色角蛋白纤维的配方,其中包含氧化色发展物质、与氧气反应但不产生过氧化氢的酶和弱还原剂。
Dyeing composition comprising a cationic tertiary para-phenylenediamine and heterocyclic coupler, methods and uses
申请人:L'OREAL
公开号:US20040231067A1
公开(公告)日:2004-11-25
The subject of the present application is a dyeing composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair, comprising, in an appropriate dyeing medium, at least one cationic tertiary para-phenylenediamine containing a pyrrolidine ring, and at least one particular heterocyclic coupler.
The subject of the invention is also the dyeing method using this composition.
Dyeing composition comprising a diaminopyrazole-type oxidation base and a pyrazolo-azole coupling agent
申请人:——
公开号:US20040237220A1
公开(公告)日:2004-12-02
The invention relates to a dye composition comprising an oxidation base of the diaminopyrazole type and a pyrazolo-azole coupler.
The invention also relates to the use of this composition for dyeing keratin fibres and also to the dyeing process using this composition.
The present invention relates to methods for dyeing keratinous fibers, without significantly damaging the hair. According to the method of the present invention the fibers are treated in a dry state by contacting said fibers with at least one oxidoreductase and at least one dye precursor. In this way it is possible to dye, e.g. human hair, in a simple and efficient manner.