Treating method for giving hydrophilic property to the surface of hydrophobic polymer substrate
US4256782A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1978 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Sep 29, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A treating method for imparting hydrophilic property to the surface of a hydrophobic polymer substrate comprising the step of: contacting the surface of the polymer substrate having carbon atoms bonded with a single hydrogen atom in the molecule with a radically polymerizable compound and then irradiating actinic rays to the polymer substrate coated with the polymerizable compound. The homopolymer of the above polymerizable compound is soluble and/or swellable in water or in electrolytic solutions. If desired, the polymerizable compound may be mixed with a triplet state sensitizer having triplet state energy of 50 Kcal/mol or more or photosensitizer which produces free radicals by irradiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.