Process for improving adhesion of coatings to polymeric substrates and articles produced thereby
US6042737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Describes a process for improving the adhesion of polymeric coatings to organic polymeric substrates and photochromic polymeric substrates. The process comprises irradiating the surface of a polymeric substrate prepared from or coated with a monomer composition having acrylic functionality in an oxygen containing environment with ultraviolet light; etching the treated surface; and applying to the etched surface a polymer-forming coating composition. Further described are articles and photochromic articles comprising in combination a polymeric substrate having on at least one surface thereof an adherent coating or photochromic coating prepared by the aforedescribed process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.