Degradation of polypropylene with hydroxylamine ester compositions
US7956109B2 · kind B2 · utility
1Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Apr 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to novel composition comprising hydroxylamine esters and thio compounds, which are suitable for lowering the molecular weight of polypropylene, propylene copolymers or polypropylene blends and result in an excellent degradation performance at temperatures below 220° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.