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US 2014/0005344 A1Published application
Hardener for epoxy resin systems and use thereof
AssigneeEvonik Industries AG
InventorsStefanie RINKER, Franz-Albert von ITTER, Bettina BRESSEL, Benjamin WILLY, Manfred NEUMANN, Chris JONES, Jeffrey H. DIMMIT
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Abstract
A hardener system for epoxy resins comprising i) at least one aromatic dianhydride compound A having a melting point of at least 35° C., ii) at least one monoanhydride compound B having a melting point of not more than 30° C. and iii) at least one catalyst C, is provided. The aromatic dianhydride compound A is dispersed in the hardener system. The present invention further provides for the use of said hardener systems and to processes for hardening epoxy resin systems.
Claims15
A composition, comprising:
- i) an aromatic dianhydride compound A having a melting point of at least 35° C.;
- ii) a monoanhydride compound B having a melting point of not more than 30° C.;
- and
- iii) a catalyst C;
- wherein
- the aromatic dianhydride compound A is dispersed in the composition, and
- the composition is a hardener system for an epoxy resin.
4 more elements
Dependencies are inferred from the claim text.