Foam filled honeycomb and methods for their production
US5338594A · kind A · utility
51Cited by
13References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
High strength foam-filled materials and methods for their production are disclosed. The high strength materials include cellular structures comprising a plurality of open-ended cells containing polycyanurate foam. The polycyanurate foam-filled cellular structures have synergistically high mechanical properties and improved resistance to moisture. When cyanate ester foamable precursors in the form of tough films are foamed to fill honeycomb cells, the resulting foam-filled honeycomb has uniformly fine foam cell structure and improved bonding between the foam and the honeycomb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.