Preparation of hydrophilic polyolefin fibers for use in papermaking
US4496427A · kind A · utility
66Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1980 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Jan 14, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Water-dispersible, uniformly hydrophilic polyolefin fibers are prepared by treatment of an aqueous suspension of spurted polyolefin fibers with an aqueous solution of a water-soluble ionized reagent capable of being converted into hydrated solid particles submicron in size to form a dispersion of said fibers and then adding to the dispersion an ionic precipitant for the ionized reagent. Representative of the ionized reagent and the ionic precipitant are the sodium salt of hydrogenated rosin and papermakers' alum, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.