Stabilized polyethylene material
US7744972B2 · kind B2 · utility
4Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Dec 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.