Post-drawn, melt-blown webs
US4048364A · kind A · utility
84Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Jan 21, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/68
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A novel nonwoven article useful as a scrim support for other materials, such as paper toweling and wiping cloths, or as porous, nonadsorbent coverings for adsorbent packaging such as bandages or sanitary napkins, or a ribbon for packaging and decorative applications, is produced by post drawing certain melt-blown thermoplastic mats under defined conditions of draw ratios and temperatures. A moderate strength yarn or twine can be produced by twisting the post-drawn, melt-blown thermoplastic web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.