Bio-based amorphous polyester resins for emulsion aggregation toners
US8163459B2 · kind B2 · utility
12Cited by
55References
10Claims
0Family size
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Key dates
| Filing date | Mar 1, 2010 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Mar 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are amorphous polyesters that contain only renewable resources designed for emulsion aggregation toner fabrication. The amorphous polyesters may be obtained from the mixture of three different monomers: 1,4:3,6-dianhydro-D-sorbitol (isosorbide), nonanedioic acid (azelaic acid), and butanedioic acid (succinic acid). Different polymer properties may be achieved depending on the ratio of these three monomers. By altering the ratio, polymers of high to low acid value can be obtained, as well as different ranges of glass transition temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.