Aqueous base coating composition for polyolefin surfaces
US6613830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/215
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is disclosed an aqueous-base coating composition containing, as essential components, finely-divided, water-dispersable: colorant, polyethylene, binder and water with sufficient of a surface active agent to form a stable suspension. The coating composition is applied as a film coating onto a polyethylene surface and the binder temporarily binds the coating to the surface until the coating can be thermally treated to incorporate the coating into the polyethylene, permanently coloring the surface. The invention also comprises a method for the preparation of the aqueous-base coating composition in which the essential components are prepared as aqueous dispersions or emulsions which are blended together to form the final coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.