Corrosion inhibiting primer paint for hand cleaned ferrous metals
US4094837A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1977 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | May 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A red lead primer paint having excellent wetting and penetrating characteristics, which when applied to the surface of ferrous metals forms a tough, resilient, adherent coating characterized by having excellent weathering and corrosion inhibiting properties, is comprised of a red lead pigment well dispersed in a binder of raw linseed oil and long oil alkyd resin. The red lead primer paint has a pigment volume concentration (PVC) within the range of about 25% to about 30%. The concentration of the red lead pigment in the primer paint is in the range of 0.25 to 2.2 pounds per gallon (29.95 to 263.56 grams per liter) of solids. The binder is comprised of raw linseed oil and a long oil alkyd resin mixed in a ratio within the range of 1:1 to 2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.