Low-extractable thioxanthones

US8933142B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8933142-B2
Application numberUS-201113884507-A
CountryUS
Kind codeB2
Filing dateNov 7, 2011
Priority dateNov 10, 2010
Publication dateJan 13, 2015
Grant dateJan 13, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

3-Esters and 3-amides of thioxanthone bearing alkyl chains of appropriate length and can be used as photoinitiators or sensitizers in photopolymerizable systems, in particular for the preparation of coatings compatible with the food use.

First claim

Opening claim text (preview).

The invention claimed is: 1. A derivative of thioxanthone of formula I Wherein: R is OR 1 and R 1 is a C 12 linear alkyl chain, and R′ is hydrogen or R′ is in position 7 and is a methyl group, or R is NR 2 R 3 and R 2 and R 3 are isobutyl, and R′ is hydrogen or R′ is in position 7 and is a methyl group. 2. A photopolymerizab…

Assignees

Inventors

Classifications

  • C07D335/16Primary

    Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • C08J3/28Primary

    Chemistry & Metallurgy · mapped topic

  • Physics · mapped topic

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What does patent US8933142B2 cover?
3-Esters and 3-amides of thioxanthone bearing alkyl chains of appropriate length and can be used as photoinitiators or sensitizers in photopolymerizable systems, in particular for the preparation of coatings compatible with the food use.
Who is the assignee on this patent?
Casiraghi Angelo, Meneguzzo Enzo, Norcini Gabriele, and 4 more
What technology area does this patent fall under?
Primary CPC classification C07D335/16. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 13 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).