Low cost multilayer elastomeric films having a low permanent set
US7922854B2 · kind B2 · utility
10Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 8, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/678
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The presently described technology provides a low cost multilayer elastomeric film containing at least one layer of styrene block copolymer and at least one elastomer layer substantially free of styrene block copolymer such that the resultant film has a low permanent set substantially equal to or less than a film comprised of styrene block copolymer only. The elastomeric film may be used in elasticized features of various articles, such as disposable absorbent articles. Methods for producing the low cost elastomeric film having a low permanent set are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.