High elastic modulus structural foam materials with improved strain to failure
US12202933B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 6, 2019 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Nov 2, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A material comprising at least about 10% by weight polyvinyl butyral, a thermoplastic epoxy, wherein the ratio of polyvinyl butyral to thermoplastic epoxy is about 1 to 10 to about 1 to 4, and at least 2% but less than 15% by weight adducted carboxyl-terminated polymer, wherein the material has a strain to failure of greater than 2% and a modulus of at least 700 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.