Impact energy absorbing composite materials
US5947918A · kind A · utility
62Cited by
20References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/674
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An impact energy absorbing composite material of expanded polytetrafluoroethylene (ePTFE) and an elastomer is disclosed. The composite is comprised of at least one layer of expanded polytetrafluoroethylene and at least one layer of an elastomer. The individual layer thicknesses of the ePTFE and elastomer are controlled to achieve superior high energy impact resistance. The invention herein provides a material having performance that also can be tailored to meet other design needs for a given application, for example, space considerations or comfort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.