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Process for the manufacture of functional PFPE derivative

US8975445B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8975445-B2
Application numberUS-201013262692-A
CountryUS
Kind codeB2
Filing dateApr 2, 2010
Priority dateApr 6, 2009
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A process for the manufacture of a functional (per)fluoropolyether derivative comprising at least one triazole group, such process comprising: (1) reacting a (per)fluoropolyether hydroxyl derivative having at least one hydroxyl group [derivative (PFPE-OH)] with an activating agent, to yield an activated (per)fluoropolyether hydroxyl derivative comprising at least one activated hydroxyl group [derivative (a-PFPE-OH)];(2) reacting said activated (per)fluoropolyether hydroxyl derivative [derivative (a-PFPE-OH)] with at least one azide salt to yield a functional (per)fluoropolyether derivative comprising at least one azido group [derivative (PFPE-N 3 )] ; and (3) reacting said functional (per)fluoropolyether derivative comprising at least one azido group [derivative (PFPE-N 3 )] with a hydrocarbon compound having a terminal alkyne group to yield a functional (per)fluoropolyether derivative comprising at least one triazole group [derivative (PFPE-azole)].

First claim

Opening claim text (preview).

The invention claimed is: 1. A (per)fluoropolyether triazole derivative comprising at least one fluoropolyoxyalkene chain (R f ) and at least one triazole group [derivative (PFPE-azole)], said derivative (PFPE-azole) complying with the following formula: T Az2 —O—R f —T Az1 wherein: —R f is a fluoropolyoxyalkene chain comprising repeating units R°, said repeating units being selected from the group consisting of: (i) —CFXO—, wherein X is F or CF 3 , (ii) —CFXCF…

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What does patent US8975445B2 cover?
A process for the manufacture of a functional (per)fluoropolyether derivative comprising at least one triazole group, such process comprising: (1) reacting a (per)fluoropolyether hydroxyl derivative having at least one hydroxyl group [derivative (PFPE-OH)] with an activating agent, to yield an activated (per)fluoropolyether hydroxyl derivative comprising at least one activated hydroxyl group [d…
Who is the assignee on this patent?
Wadgaonkar Prakash, Menon Shamal, Tonelli Claudio Adolfo Pietro, and 1 more
What technology area does this patent fall under?
Primary CPC classification C08G65/007. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 10 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).