Complexed starch-containing compositions having high mechanical properties
US6348524B2 · kind B2 · utility
34Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Jun 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Heterophasic compositions comprising starch and a thermoplastic polymer that is incompatible with the starch, in which the starch constitutes the discontinuous phase and the thermoplastic polymer the continuous matrix, having an impact strength greater than 30 KJ/m2 (measured on blown film of 30 microns thick at 10° C. and RH less than 5%), and further characterised by the presence in the X-ray diffraction spectrum of a peak at an angle 2-theta from 13 to 14° the ratio of the intensity of which to that of the peak of the amorphous starch which occurs at 20.5°, is less than 2 and greater than 0.02.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.