Photo responsive material and optical device
US-9771518-B2 · Sep 26, 2017 · US
Indeno-fused naphthopyrans having ethylenically unsaturated groups
US9139552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9139552-B2 |
| Application number | US-201113326546-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2011 |
| Priority date | Apr 8, 2005 |
| Publication date | Sep 22, 2015 |
| Grant date | Sep 22, 2015 |
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Abstract
Official abstract text for this publication.
The present invention relates to indeno-fused naphthopyrans, and in particular indeno[2′,3′:3,4]naphtho[1,2-b]pyrans having certain groups bonded to the 3, 6, 7, 11, and 13 positions thereof. The indeno-fused naphthopyrans of the present invention have an ethylenically unsaturated group selected from (C 1 -C 6 alkyl)acrylate and (C 1 -C 6 alkyl)acrylamide, that is linked to the 11 position or 13 position thereof. The present invention also relates to photochromic articles and photochromic compositions containing such indeno-fused naphthopyrans.
First claim
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What is claimed is: 1. An indeno-fused naphthopyran represented by the following Formula (I), wherein, R 1 is R 6 O—, wherein R 6 is linear or branched C 1 -C 20 alkyl, C 3 -C 12 cycloalkyl, or C 3 -C 12 heterocycloalkyl, R 2 is —N(R 11 ′)R 12 ′, wherein R 11 ′ and R 12 ′ are each independently hydrogen, C 1 -C 8 alkyl, C 3 -C 20 cycloalkyl, or C 1 -C 20 alk…
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Chemistry & Metallurgy · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9139552B2 cover?
- The present invention relates to indeno-fused naphthopyrans, and in particular indeno[2′,3′:3,4]naphtho[1,2-b]pyrans having certain groups bonded to the 3, 6, 7, 11, and 13 positions thereof. The indeno-fused naphthopyrans of the present invention have an ethylenically unsaturated group selected from (C 1 -C 6 alkyl)acrylate and (C 1 -C 6 alkyl)acrylamide, that is linked to the 11 position or…
- Who is the assignee on this patent?
- Xiao Wenjing, Van Gemert Barry, Transitions Optical Inc
- What technology area does this patent fall under?
- Primary CPC classification C07D311/92. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 22 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).