Polyvinyl alcohol binder fibers, and paper or nonwoven fabric comprising them
US6924030B2 · kind B2 · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Mar 10, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
PVA binder fibers having the following characteristics: a cross-section circularity of at most 30%, a degree of swelling in water at 30° C. of at least 100%, and a degree of dissolution in water of at most 20%, are capable of being processed even under low-energy drying condition, for example, in high-speed drying in a hot air drying system (e.g., air-through drier) or in low-temperature drying in a multi-cylinder system or the like to give paper and nonwoven fabrics of high strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.