Solvent-promoted self-healing materials
US9108364B2 · kind B2 · utility
4Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2008 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C73/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite material includes a solid polymer matrix, a plurality of capsules and a liquid, in the capsules. The liquid includes from 50 to 100 wt % of a solvent, and from 0 to 50 wt % of a polymerizer. There is no polymerizer outside of the capsules. The solid polymer matrix may include a native activating moiety for the polymerizer. The solvent may have a swelling ratio with the solid polymer matrix of at least 1.1 and/or may have a polarity ET of from 0.10 to 0.50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.