发明名称 |
Process for preparing a self-healing composite material |
摘要 |
The process for preparing a self-healing composite material comprising a matrix of epoxy polymer, in which a catalyst of ring opening metathesis reaction and microcapsules containing a cyclic olefin having 7 to 40 carbon atoms are dispersed, comprises the steps of:
- preparing a mixture of
a precursor of the epoxy polymer, having at least one oxiranc ring,
a curing agent chosen from the group consisting of tertiary amines, a Hoveyda-Grubbs II metathesis catalyst reaction, having the formula (I), wherein Ar= aryl having at least one halogen or alkyl substituent and "R= alkyl with 1 to 20 carbon atoms, and
microcapsules containing a cyclic olefin having 7 to 40 carbon atoms; and
- heating the mixture at a temperature comprised between 25 and 130 °C for at least 1 hour, so as to obtain such matrix of epoxy polymer due to a reaction between precursor and curing agent, which reaction does not substantially involve either said catalyst or said microcapsules. |
申请公布号 |
EP2172518(B1) |
申请公布日期 |
2016.09.07 |
申请号 |
EP20090170388 |
申请日期 |
2009.09.16 |
申请人 |
LEONARDO S.P.A. |
发明人 |
GUADAGNO, LIBERATA;LONGO, PASQUALE;RAIMONDO, MARIALUIGIA;MARICONDA, ANNALUISA;NADDEO, CARLO;SORRENTINO, ANDREA;VITTORIA, VITTORIA;IANNUZZO, GENEROSO;RUSSO, SALVATORE;CALVI, ERIKA |
分类号 |
C08L51/08;B29C73/16 |
主分类号 |
C08L51/08 |
代理机构 |
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代理人 |
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主权项 |
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