Static mixer
US8753006B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Feb 4, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/428
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the manufacture of a static mixer in an injection molding process includes the steps: injecting a polymer melt containing a foaming agent into a passage at an injection point at an injection pressure of less than 500 bar; filling the passage with the polymer melt containing a foaming agent; at least partial foaming of the melt containing a foaming agent in the passage, with the ratio of flow path length to height amounting to at least 10. The installation body is made up at least partly of foamed plastic and has a ratio of longitudinal dimension to diameter larger than 1 and a ratio of longitudinal dimension to wall thickness of at least 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.