Patent · US Active

Method of preparing emulsions containing elastomeric silanes and siloxanes having quaternary ammonium groups

US7902293B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

Bethany K. Johnson · Midland, US
Michael Richard Lafore · Freeland, US
Donald T. Liles · Midland, US
Zuchen Lin · Midland, US

Key dates

Filing date	Mar 25, 2004
Grant date	Mar 8, 2011
Priority date	—
Expiry date	Feb 22, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2383/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Oil-in-water (O/W) and water-in-oil (W/O) emulsions and microemulsions containing elastomeric silanes or siloxanes preferably having quaternary ammonium groups are generally made by reacting organic quaternary ammonium compounds having epoxide groups or halohydrin groups, with silanes or siloxanes having amino groups. The reaction is carried out in an aqueous polar phase containing a crosslinking agent and surfactant. The emulsions and microemulsions are especially useful for treating hair, skin, or the underarm.

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