Process for preparing starch and epoxy-based thermoplastic polymer compositions
US6376583B1 · kind B1 · utility
20Cited by
11References
6Claims
0Family size
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Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a starch-based thermoplastic hydroxy-functional polyether comprising (1) feeding from about 40 to about 98 weight percent starch and from about 2 to about 60 weight percent of a thermoplastic hydroxy-functional polyether derived from monomers containing one or more epoxy groups into a processing equipment at a temperature and for a time sufficient to provide a compounded mixture of the components and then (2) forming the compounded mixture into pellets. The pellets are suitable for injection molding and other thermal processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.