Method for producing suspension of crosslinked silicone particles
US6437042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jan 3, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A suspension containing crosslinked silicone particles with a lower mean particle diameter and a better dispersion in certain organic resins is prepared by emulsifying a condensation crosslinkable silicone composition containing (A) an organopolysiloxane having at least two silanol groups per molecule and (B) a crosslinker, but no (C) condensation catalyst, in water using a surfactant. A tin (II) salt of an organic acid with no more than ten carbon atoms is then emulsified in water with a surfactant, and added as the component (C) to the emulsion of condensation crosslinkable silicone composition. This crosslinks the emulsion of condensation crosslinkable silicone composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.