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Silicone hydrogel ophthalmic devices molded in vinyl alcohol copolymer molds and related methods
US8979261B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979261-B2 |
| Application number | US-201113810679-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2011 |
| Priority date | Jul 30, 2010 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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Silicone hydrogel ophthalmic devices, such as ocular inserts and contact lenses, formed in direct contact with molds comprising at least one vinyl alcohol copolymer and related methods are described. The at least one vinyl alcohol copolymer of the molds is a vinyl alcohol copolymer other than an ethylene-vinyl alcohol copolymer. The methods of manufacturing ophthalmic devices can use dry or wet demolding processes, or dry or wet delensing processes.
First claim
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What is claimed is: 1. A method of manufacturing a silicone hydrogel ophthalmic device, comprising: providing a polymerizable composition, the polymerizable composition comprising (a) at least one siloxane monomer, (b) at least one hydrophilic monomer, and (c) at least one crosslinking agent; polymerizing the polymerizable composition in an ophthalmic device mold assembly to form a polymeric ophthalmic device body, wherein at least one mold member of the ophthalmic device…
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Operations & Transport · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8979261B2 cover?
- Silicone hydrogel ophthalmic devices, such as ocular inserts and contact lenses, formed in direct contact with molds comprising at least one vinyl alcohol copolymer and related methods are described. The at least one vinyl alcohol copolymer of the molds is a vinyl alcohol copolymer other than an ethylene-vinyl alcohol copolymer. The methods of manufacturing ophthalmic devices can use dry or wet…
- Who is the assignee on this patent?
- Goodenough Neil, Morsley David Robert, Bruce Ian, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B29D11/00413. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).