Mixtures of polymer having polyamide blocks and copolymers having vinylaromatic units and anhydride units
US5998545A · kind A · utility
9Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jan 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a mixture of polymers (A) having polyamide blocks and copolymers (B) comprising vinylaromatic units and unsaturated carboxylic anhydride units, the quantity of (B) being sufficient for the melt index (or melt flow index, MFI) of the mixture of (A) and (B) to be less than the melt index of (A) alone. It also relates to masterbatches of (A) and (B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.