Process of producing a melt-spinnable fiber using thermoplastic polymer and destructured starch
US9925706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | May 13, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/637
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A melt spinnable fiber is provided that comprises a first component comprising a thermoplastic polymer, and a second component comprising thermoplastic starch where the second component is not encompassed by another component or components or if encompassed by another component or components then the second component encompasses a hollow core. A particular use of such a fiber is for removal of the second component in the presence of a solvent in order to produce fibers with desired properties. An agent may be present in the second component for controlling the rate of removal of the second component thereby allowing for physical manipulation of the fiber prior to complete removal of the component. The invention is also directed to nonwoven webs and disposable articles comprising the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.