Bimodal polyethylene composition for injection moulded articles
US8946326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jun 28, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Bimodal high density polyethylene composition for producing molded articles comprising—an ethylene homopolymer or an ethylene alpha-olefin copolymer which is a bimodal high density polymer (COMPONENT A) in combination with—an alphanucleating agent (COMPONENT B),—a slip agent being a primary fatty acid amide, (COMPONENT C) and—one or more additives selected from antioxidants, acid scavengers, pigments and UV-stabilizers (COMPONENT D), the composition showing an increased the crystallization temperature and a decreased coefficient of friction compared to a bimodal HDPE composition prepared with the sole use of nucleating agent and compared to the sole use of a slip agent; and its use for producing injection molded articles, especially caps and closures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.