Impregnated flexible sheet material
US8129293B2 · kind B2 · utility
7Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2803
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flexible sheet material useful as an energy absorbing material is impregnated with a dilatant silicone composition comprising the reaction product of a polydiorganosiloxane and a boron compound selected from boric oxide, a boric acid, a boric acid precursor, a borate or a partially hydrolysed borate. The silicone composition can be modified by reaction with a hydrophobic compound reactive with silanol groups to improve the resistance to washing. The flexible sheet can be a material, e.g. a fabric, having a negative Poisson's ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.