Ribbed film structures with pigment created visual characteristics
US10543658B2 · kind B2 · utility
0Cited by
105References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Nov 23, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2457
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In one example embodiment, a film includes a coextruded structure having both an extruded ribbed skin layer that includes a plurality of ribs, and a core layer. The ribs are spaced apart by a web that is integral with the ribs. The film also includes a coloring agent that is substantially more apparent in the ribs than in the web, such that a contrast in color and/or color intensity between the ribs and the web is visible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.