Scratch-resistant moulded article made from a filled polypropylene composition
US8163378B2 · kind B2 · utility
3Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | May 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24994
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a moulded article made from a polypropylene composition comprising 48-94.9 mass % of a polypropylene; 5-30 mass % of glass fibers having average length of 1-50 mm; 0.1-2 mass % of oleamide and/or erucamide; and 0-20 mass % of other additives; the article showing a color change of dL<2 in the PSA/Renault scratch tests and a color change of dL<1.5 in the Erichsen scratch test.This article shows an excellent combination of properties, especially a good balance between stiffness and impact resistance, which have excellent surface appearance, and high resistance to surface scratching and abrasion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.