Rotational molded article formed from high molecular weight polyamides
US8309190B2 · kind B2 · utility
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3References
14Claims
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Inventors
Key dates
| Filing date | Feb 24, 2010 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31739
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.