Stretched-thinned films comprising low crystallinity polymers and laminates thereof
US5947944A · kind A · utility
19Cited by
34References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1996 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Dec 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to thin, elastomeric films made from low crystallinity propylene copolymers having a crystallinity of less than about 30%. The elastomeric films of the present invention have improved strength in the cross machine direction. The films may be incorporated into laminate materials used in the outer coverings of diapers, training pants, incontinence products and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.