Polymeric rule die, and formulations therefor
US11130307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Jan 9, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/256
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Die and counter-die systems, polymeric rule dies for such systems, and polymeric formulations suitable for producing such rule dies using digital rule writing. There is provided a rule die for pressure-contacting of a cardboard workpiece surface, including: (a) a die body; and (b) at least one elongate polymeric rule, each rule having: (i) a first elongate base surface adhesively attached to a surface of the die body; and (ii) an elongate protrusion, distally protruding from the die body, the elongate protrusion having an elongate die surface, the elongate die surface including a polymeric material, the elongate die surface having a contact surface adapted to contact the workpiece surface; the contact surface having a length of at least 5 mm and a first width (W) within a range of 0.4 to 1.0 mm, the rule having a height (H) within a range of 1.0 to 4.5 mm; wherein, over a total length of the contact surface, the contact surface having at most 5 surface pocks/meter, the pocks having a diameter above 0.1 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.