Method of making nonwoven sheet materials, tapes
US5679190A · kind A · utility
25Cited by
36References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1023
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Nonwoven sheet materials, and pressure sensitive adhesive tapes formed from nonwoven sheet materials are provided. The nonwoven sheet materials comprise a randomly interlaced fibrous web of tensilized nonfracturable staple fibers and binder fibers, wherein the fibrous web is pattern embossed, and is interbonded by a chemical bonding agent, physical entanglement, or a combination thereof, and further wherein the nonwoven sheet material is readily finger-tearable in the cross web direction. Methods of making nonwoven sheet materials and adhesive tapes are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.