Patent · US Expired

Composition for the permanent shaping of human hair

US6692731B2 · kind B2 · utility

5Cited by

2References

5Claims

0Family size

Assignee

KPSS-Kao Professional Salon Services GmbH · DE

Inventors

Burkhard Rose · Darmstadt, DE
Jonathan Wood · Sudbury, US

Key dates

Filing date	Jan 24, 2002
Grant date	Feb 17, 2004
Priority date	—
Expiry date	Feb 27, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q5/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A composition for the permanent shaping of human hair, with good waving capability while avoiding damage to the hair, comprises at least one reducing agent and 0.1% to 15% by weight, calculated to the total composition, of 2-methyl-1.3-propanediol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.