Durable paper
US7666274B2 · kind B2 · utility
27Cited by
77References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 18, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/27
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a durable paper or paperboard substrate containing an effective amount of synthetic fibers and having enhanced strength in the machine direction and the cross direction, as well enhanced strength through the cross section of the sheet. The present invention further relates to methods of making and using the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.