Poly(ethylene oxide) and organically modified clay compositions having reduced melt viscosity and improved stability to aqueous fluids
US6492452B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1999 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Dec 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/835
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention discloses water-responsive, and optionally flushable compositions with improved stability to aqueous fluids comprising water or water vapor. The compositions of the 10 present invention comprise a water-responsive polymer and organically modified clay particles. In one embodiment, the water-responsive polymer is a polymer of ethylene oxide, specifically poly(ethylene oxide) and specific graft copolymers of poly(ethylene oxide). Films of the present invention are water-responsive and breathable and are especially useful for personal care applications including disposable diapers, feminine pads, pantiliners and training pants. Advantageously, compositions of the present invention have reduced melt viscosity and are more easily melt processed into films, fibers and other articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.