Polymeric coextruded multilayer articles
US6949283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31917
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Described is a polymeric coextruded multilayer web, the web comprising: at least two layers that are discontinuous in the cross-web direction, each layer comprising a plurality of distinct phases that are substantially continuous in the down-web direction; and at least one layer that is substantially continuous in both the cross-web and down-web directions; wherein said web has an x-axis that is in the cross-web direction of the web, a y-axis that is in the down-web direction of the web and a z-axis that is in the thickness direction of the web, and wherein the substantially continuous layer(s) lacks weld lines in the y-z plane of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.