| US 7,381,460 B2 | ||
| Energy absorbing material | ||
| Richard Martin Palmer, Boxmoor (United Kingdom); and Philip Charles Green, Stevenage (United Kingdom) | ||
| Assigned to Design Blue Ltd., London (United Kingdom) | ||
| Appl. No. 10/499,778 PCT Filed Dec. 23, 2002, PCT No. PCT/GB02/05886 § 371(c)(1), (2), (4) Date Oct. 08, 2004, PCT Pub. No. WO03/055339, PCT Pub. Date Jul. 10, 2003. |
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| Claims priority of application No. 0130834.5 (GB), filed on Dec. 22, 2001. | ||
| Prior Publication US 2005/0037189 A1, Feb. 17, 2005 | ||
| Int. Cl. B32B 3/26 (2006.01); B32B 3/06 (2006.01); B32B 3/00 (2006.01) | ||
| U.S. Cl. 428—304.4 [428/306.6; 428/314.4] | 19 Claims |
| 1. A self-supporting energy absorbing composite comprising:
i) a solid foamed synthetic polymer matrix;
ii) a polymer-based dilatant, different from i) distributed through the polymer of the matrix and incorporated into the polymer
of the matrix during formation of i); and
iii) a fluid distributed through the matrix, the combination of matrix, dilatant and fluid being such that the composite is flexible and resiliently compressible.
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