Composite particles, composite particle dispersion composition, and method of preparing composite particle dispersion composition
US6541114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Composite particles capable of forming a coating excelling in weatherability and, in particular, stain-proof characteristics, a composite particle dispersion composition containing the composite particles and excelling in film formability, and a method of preparing the composite particle dispersion composition. The composite particles contain (i) polymer particles having 2-70 wt % of a polymer phase (a) of the core and 98-30 wt % of a polymer phase (b) of the shell, and (ii) a polymer of at least either an organosilicon compound or organometallic compound present at least either on or near the surface of the polymer phase (b), wherein the polymer phase (a) and the polymer phase (b) have different monomer compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.