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:
Oct. 29, 2002
Filed:
Jun. 28, 2000
Lylan N'Guyen, L'Hay les Roses, FR;
Anne Sabbagh, Rueil Malmaison, FR;
L'Oreal S.A., Paris, FR;
Abstract
A subject-matter of the invention is a process for the permanent deformation of the hair comprising the successive application of a reducing composition and then of a neutralizing composition, at least one of these compositions comprising at least one cationic polymer, in which, before the application of the reducing composition, a third separate composition, which is distinct from the reducing and neutralizing compositions and comprises at least one anionic polymer, is applied to the hair in a preliminary way. The hair is rinsed, preferably only after having applied the (or at least one of the) composition(s) comprising the cationic polymer(s).