Pre-impregnated composite materials with improved performance
US7968179B2 · kind B2 · utility
11Cited by
17References
22Claims
0Family size
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Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31525
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Pre-impregnated composite material (prepreg) is provided that can be molded to form composite parts that have high levels of both strength and damage tolerance without causing any substantial negative impact upon the physical or chemical characteristics of the uncured prepreg or cured part. This is achieved by including in the matrix resin a substantial amount of a multifunctional aromatic epoxy resin that has at least one phenyl group that is meta-substituted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.