Additives for imparting mar and scratch resistance and compositions comprising the same
US7268176B2 · kind B2 · utility
10Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2002 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Nov 30, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/011
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Additives comprising dispersed silica nanoparticles are disclosed. The silica nanoparticles are dispersed in an aminoplast, such as a modified aminoplast formed from the reaction between an aminoplast, a modifying component, and optionally a siloxane. The resulting additives can be added to coating compositions to provide improved mar and/or scratch resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.