Alkoxysilane compound, surface processing solution and contact lens
US5936703A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Dec 1, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alkoxysilane compound represented by the formula (I) ##STR1## wherein R.sup.1, and R.sup.2 denote --CH.sub.3 or --C.sub.2 H.sub.5 and X denotes --COO.sup.- or --SO.sub.3.sup.-, p and n denote an integer of 1 to 3 and q denotes 0 or 1, where p+q=3, a surface processing solution containing the alkoxysilane compound or its acid-processed reaction product and a contact lens surface-processed with the surface processing solution. The alkoxysilane compound is capable of affording hydrophilicity to the surfaces of various substrates and may be utilized in the field of fibers, optical components, medical materials or in inspection and diagnostic drugs, particularly as a surface bound coating composition for contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.