Patent · US Active

MQ-T propyl siloxane resins

US8124710B2 · kind B2 · utility

4Cited by

17References

9Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

Julie Lyn Cook · Turner, US
Daniel Michael Hinterman · Midland, US
Lori Ann Stark-Kasley · Midland, US
Gary Wieber · Midland, US

Key dates

Filing date	Jan 20, 2005
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Sep 19, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/44
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

MQ-T propyl siloxane resins comprising (R13SiO1/2)a, (R22SiO2/2)b, (R3SiO3/2)c, and (SiO4/2)d units, where at least 40 mole % of the R3 groups are propyl are disclosed. A method of preparing such siloxane resins by reacting a MQ siloxane resin with a T propyl siloxane resin is also disclosed. These siloxane resins are useful in a variety of personal, household, and medical care applications, and in particular, as a resin additive in pigmented cosmetic formulations.

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