Water absorbing webs
US4622263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1985 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | May 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a melt-blow water-absorbing fiber webs whose main component is block-copolyetheresters having polyester and polyether segments in the molecules, wherein the amount the polyether component is 5 to 80 wt % base on the block-copolyetheresters. The water-absorbing web of this invention shows high chlorine fastness and consequently shows excellent water absorption performances after repeated washing. They are available as good batting (urine absorber) for diapers, as well as bed pads, towel materials and sports underpants, and applicable to a wide range of disposal products which require high water absorption performances and durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.