Layer multiplying die for generating interfacial surfaces
US9364988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | May 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92514
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for generating interfacial surfaces within a first composite stream having a generally planar layer interface lies generally in an x-z plane of an x-y-z coordinate system. The method includes dividing the first composite stream into a plurality of branch streams along the x-axis such that the pair of discrete overlapping layers and the generally planar layer interface are distributed among at least two branch streams. Within each individual branch stream of the at least two branch streams, the width dimension of the branch stream is expanded along the x-axis and the thickness dimension of the branch stream is simultaneously contracted along the y-axis. The branch streams are recombined in an overlapping relationship, after each of the at least two branch streams is simultaneously expanded and contracted, to form a second composite stream having a greater number of discrete overlapping layers of polymeric material than the first composite stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.