Dispersible compositions and articles of sheath-core microfibers and method of disposal for such compositions and articles
US6579814B1 · kind B1 · utility
3Cited by
50References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 25, 1999 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | May 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/68
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An alkali dispersible article comprises a sheath-core microfiber. The sheath layer comprises a hydrolytically degradable polymer, and the core layer comprises another polymer that is different than the sheath polymer. The core polymer may be a hydrolytically degradable polymer or more preferably a water soluble polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.