Belt for papermarking and process for producing papermaking belt
US7090747B2 · kind B2 · utility
3Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2001 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A papermaking belt which prevents cracking and inhibits crack growth which includes a reinforcing substrate embedded in a thermosetting polyurethane layer so that the reinforcing substrate and the thermosetting polyurethane layer are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface being made of a composition containing a urethane prepolymer having isocyanate groups on its ends and a hardener containing dimethylthiotoluenediamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.