Method of manufacturing a foam showing a gradient poisson's ratio behaviour
US9956729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2300/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a foam having a Poisson's ratio which varies across at least a region of the foam in a gradient distribution involves the steps of: a) providing a housing defining an internal space having an inlet aperture and an outlet aperture; b) providing an open-cell foam of a size and shape configured to fit inside the internal space of the housing; c) positioning the foam inside the internal space of the housing; d) establishing a flow of air through the foam via the inlet and outlet apertures; e) heating the foam to a predetermined temperature while maintaining the flow of air through the foam; and f) subsequently cooling the foam while continuing to maintain the flow of air through the foam. A foam of such a type is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.