Color coated transparent polymer substrate web
US5609944A · kind A · utility
0Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | May 11, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A gravure roll and associated coating methods are disclosed that produces a uniform coating gradient on a substrate. The gravure roll comprising a series of cells arranged in circumferential line density sections in which the line densities progressively increase from section to section, and in which the cell volumes progressively decrease within each section, and in which the cell volumes at the end of one section are substantially the same as the cell volumes at the beginning of the next adjacent section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.