Energy absorbing articles of extruded thermoplastic foams
US6213540A · kind A · utility
47Cited by
12References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249989
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An energy absorbing article having a direction in which impact resistance is desired is formed of extruded thermoplastic foam exhibit anisotropic compressive strength. The extrusion direction of the thermoplastic foam is aligned substantially parallel with the direction in which impact resistance is desired to provide an energy absorbing article exhibiting a high ratio of compressive strength to weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.