Process for preparing starch and epoxy-based thermoplastic polymer compositions
US6365079B1 · kind B1 · utility
86Cited by
1References
10Claims
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Key dates
| Filing date | May 11, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | May 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a starch-based thermoplastic hydroxy-functionalized polyetheramine comprising continuously feeding from about 40 to about 98 weight percent starch and from about 2 to about 60 weight percent of a thermoplastic hydroxy-functionalized polyetheramine into a mixing screw extruder at a temperature of from about 30° C. to about 120° C. while maintaining a water content in the extruder of from about 7 to about 50 percent, continuously removing the compounded mixture from the extruder in the form of strands at a rate of from 13.5 to 2725 kg/hour, and forming the strands of compounded mixture into pellets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.