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.:

US 6506501 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 14, 2003

Filed:

Sep. 27, 2001
Applicant:
Inventors:

Dieter Schonert, Reinheim, DE;

Gerhard Maresch, Darmstadt, DE;

Gernot Mecks, Hoechst/Odw., DE;

Assignee:

Wella AG, Darmstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/900 ;
U.S. Cl.
CPC ...
B32B 2/900 ;
Abstract

The permanent shaping method avoids overcurling of hair tips. Prior to performing the permanent shaping of the hair, the hair tips are protected by wrapping the hair tips with an impregnated foil and then performing the permanent shaping of the hair. The foil is an impregnated hair-tip paper that has been treated with an aqueous preparation that provides superior permanent shaping results. This aqueous preparation contains water, from 20 to 70 percent by weight of at least one lipophilic substance; from 1 to 25 percent by weight of at least one emulsifier and from 0.5 to 15 percent by weight of at least one organic acid. An impregnated foil made from silk or rice paper is also described.


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