Fusion bonded epoxy coating compositions that include magnesium oxide
US8679632B2 · kind B2 · utility
9Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31511
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A powdered epoxy coating composition for coating a substrate. The coating composition comprises: (a) from about 50 wt % to about 90 wt % of at least one epoxy resin; (b) from about 1 wt % to about 30 wt % of at least one catechol novolak-type adhesion promoter; and (c) from about 0.1 wt % to about 5 wt % of magnesium oxide. The coating may also include from about 10 wt % to about 48 wt % of an inorganic filler. The coating composition provides improved adhesion at high temperature operating conditions and improved resistance to damage by cathodic disbondment for pipe, rebar, and other substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.