Process of making cardable hydrophobic polypropylene fiber
US5403426A · kind A · utility
23Cited by
10References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Sep 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1062
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for preparing hydrophobic fiber for processing, inclusive of crimping, cutting, carding, compiling and bonding, without substantial loss in hydrophobic properties in the finished staple or corresponding nonwoven product through initial application of a surface modifier component comprising one or more of a class of water soluble compounds substantially free of lipophilic end groups and of low or limited surfactant properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.