Vision correction with laser refractive index changes
US-2018243082-A1 · Aug 30, 2018 · US
Compounds for optically active devices
US11958819B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11958819-B2 |
| Application number | US-202117390029-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2021 |
| Priority date | Aug 21, 2015 |
| Publication date | Apr 16, 2024 |
| Grant date | Apr 16, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention relates to copolymers, particularly to copolymers comprising a photoactive unit, the copolymers being particularly suitable for ophthalmic devices. The copolymers include one or more different polymer units in addition to the photoactive unit, such as polymerized units derived from ethylene, propylene, an acrylate, a methacrylate, or a styrene.
First claim
Opening claim text (preview).
The invention claimed is: 1. A copolymer comprising: one or more polymer units M 1 selected from units of the following formulae (P-1) to (P-63); and one or more different polymer units: wherein, each * in the formulae indicates a linkage to an adjacent unit of the copolymer, and n indicates the number of units of the formula. 2. A copolymer according to claim 1 , wherein the one or more different polymer units in the copolymer comprise at least one unit M 2 , which at each occurrence is independently selected from the group consisting of a polymerized unit derived from ethylene, propylene, an acrylate, a methacrylate and a styrene. 3. A copolymer according to claim 2 , wherein the copolymer comprises units M 1 and M 2 in a ratio m 1 :m 2 of from 0.01 to 100. 4. A copolymer according to claim 1 , wherein one or more polymer units M 1 and/or one or more different polymer units in the copolymer are crosslinked with each other.
Assignees
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Classifications
- C07D311/16Primary
substituted in position 7 · CPC title
obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials} · CPC title
Benzothiopyrans; Hydrogenated benzothiopyrans · CPC title
containing aromatic rings in the alcohol moiety · CPC title
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Frequently asked questions
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- What does patent US11958819B2 cover?
- The present invention relates to copolymers, particularly to copolymers comprising a photoactive unit, the copolymers being particularly suitable for ophthalmic devices. The copolymers include one or more different polymer units in addition to the photoactive unit, such as polymerized units derived from ethylene, propylene, an acrylate, a methacrylate, or a styrene.
- Who is the assignee on this patent?
- Johnson & Johnson Surgical Vision Inc
- What technology area does this patent fall under?
- Primary CPC classification C07D311/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 16 2024 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).