Salt stable cationic silicone oil-in-water microemulsion
US5969038A · kind A · utility
5Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Mar 20, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Mar 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composition contains (A) a silicone component which is an aqueous oil-in-water microemulsion containing a polysiloxane stabilized in the microemulsion by a cationic surfactant, and (B) a inorganic salt or an organic salt. The polysiloxane in the cationic microemulsion has a particle diameter of less than about 100 nanometer, preferably less than about 40 nanometer. The polysiloxane is a polydimethylsiloxane or an amine functional polysiloxane, preferably prepared by emulsion polymerization. The composition preferably contains at least about twenty percent by weight of the salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.