Nonwoven fabrics having durable wettability
US5439734A · kind A · utility
18Cited by
24References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1993 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Oct 13, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided a nonwoven fabric having durable wettability comprising fibers formed from polyolefin blended with hydrophilic additives of the formula; ##STR1## wherein x is an integer from 1 to 15 and R is an alkane or alkene with up to 18 carbon atoms, A, B, and C are integers equal to or greater than one arranged in any order or repetitive series, z is an integer at least equal to one, and wherein the fibers which have been formed are polyolefin provided with hydrophilic additives prior to fiberization. Such fabrics have been found to provide surprisingly durable wettability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.