Two-stage cure polyimide oligomers
US10125224B2 · kind B2 · utility
0Cited by
22References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Mar 17, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for using citraconic anhydride and itaconic anhydride as addition cure end caps in reactions for forming polyamic acid oligomers and polyimide oligomers, is provided. Prepregs and high temperature adhesives made from the resulting oligomers, as well as, high temperature, low void volume composites made from the prepregs, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.