Functional polymer with a pendant color changing indicator
US8329851B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Oct 22, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/2005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A functionalized polymer is disclosed that comprises the reaction product of a polymer having one or more pendant reactive functional groups and a color changing indictor having a co-reactive functional group. The co-reactive functional group of the color changing is able to react with the reactive functional group of the polymer to form a covalent bond. Therefore, the color changing indicator is pendant from the polymer. The color changing indicator maintains its ability to produce a visually discernable color change in the presence of an associated stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.