Method of making silicone containing contact lens with reduced amount of diluents
US9981434B2 · kind B2 · utility
7Cited by
58References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Jul 27, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of manufacturing a contact lens including the steps of: (i) adding reactive components to a mold, wherein the reactive components comprise (a) at least one hydroxy-containing silicone component having a weight average molecular weight from about 200 to about 15,000 g/mole and (b) at least one mono-ether terminated, mono-methacrylate terminated polyethylene glycol having a weight average molecular weight from about 200 to about 10,000 g/mole; (ii) curing the reactive components within the mold to form the contact lens; and (iii) removing the contact lens from said mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.