| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | Westvaco |
| PATENT CLAIMS |
- First base coat consisting of pigment: Mixt of calcined clay & precipitated CaCO3 & Binder: Mixt of PVAc & Protein - Secind coating consisting of Pigment: Fumed silica & Binder: Emulsion of styrene polymerized in the presence of vinylpyrrolidone |
| PATENT PHOTOCOPY | Available on request |
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