Patent · US Active

Odor controlled personal care compositions containing hydroxypropyl trialkylammonium salts

US8277786B2 · kind B2 · utility

1Cited by

4References

9Claims

0Family size

Assignee

Conopco, Inc. · US

Inventors

Lin Yang · Fort Lee, US
Neil Patrick Randle · Schwetzingen, DE
Stephen Roy Barrow · Trumbull, US
Miguel Ortiz · New York, US

Key dates

Filing date	Jan 5, 2009
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Jan 21, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q19/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A personal care composition is provided which includes from 0.1 to 30% of a dihydroxypropyltri(C1-C3 alkyl) ammonium salt by weight of the composition; from 0.0001 to 0.005% of a tri(C1-C3 alkyl)amine or protonated form thereof by weight of the ammonium salt; from 0.002 to 15% of an aluminum salt by weight of the composition; and a cosmetically acceptable carrier wherein the composition has a pH ranging from 5.5 to 6.9. Unpleasant amine odor from trialkyl amines which arise from the dihydroxypropyltri(C1-C3 alkyl) ammonium salts is suppressed by the aluminum salt and by careful control of pH conditions.

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