Process for the modification of a material surface
US6586038B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for coating a material surface. The process comprises the steps of: (a) covalently binding polymerization initiator radicals to the surface; (b) graft polymerizing a vinyl monomer carrying a reactive group onto the initiator-modified material surface and thereby providing a primary polymer coating comprising reactive groups; and (c) reacting the reactive groups of the primary polymer coating with a hydrophilic telomer having a functional group that is coreactive with the reactive groups of the primary polymer coating. The coated articles that are obtainable by the process of the invention have desirable characteristics regarding adherence to the substrate, durability, hydrophilicity, wettability, biocompatibility and permeability and are thus useful for the manufacture of biomedical articles such as ophthalmic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.