Stabilized polypropylene
US4778840A · kind A · utility
6Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Sep 11, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5333
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polypropylene compositions containing as stabilizer at least one compound of the formula I ##STR1## in which x is 0 or 1, PA0 n is 1, 2, 3 or 4, PA0 R.sub.1 is C.sub.1 -C.sub.6 alkyl, PA0 R.sub.2 is hydrogen or C.sub.1 -C.sub.6 alkyl, and PA0 R.sub.3 is C.sub.1 -C.sub.30 alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.