Device and method for the homogenisation of plastics material melts
US10093034B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/70
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device, to homogenise plastics material melts, has a homogenising element with a plurality of flow channels, which differ with respect to at least one feature from the group length, cross sectional area and cross sectional shape. When flowing through the homogenising element, the plastics material melt is divided into a plurality of part streams, which, in each case, flow through an associated flow channel. When leaving the respective flow channel the part streams have different flow speeds so the plastics material melt is expanded and sheared on transition to a uniform flow. As a result, a homogenisation of the plastics material melt takes place in a simple, efficient and effective manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.