High-stability microencapsulated hardened for epoxy resin...

Compositions – Electrically conductive or emissive compositions

Reexamination Certificate

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C525S523000, C524S183000, C428S042200, C523S211000, C106S287300, C429S129000

Reexamination Certificate

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07854860

ABSTRACT:
A microencapsulated latent hardener for epoxy resins which comprises cores (C) and shells (S) with which the cores are covered, characterized in that the cores (C) are ones formed from, as a starking material, particles of an epoxy resin hardener (H) comprising an amine adduct (A) and a low-molecular amine compound (B) as major ingredients and that the shells (S) have on the surface thereof connecting groups (x), (y), and (z) which absorb infrared. Also provided is an epoxy resin composition containing the hardener.

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Office Action issued on Mar. 10, 2010 in a corresponding Chinese Application (200680036309.X).
Yongquan Lu et al., “Practical Infrared Spectra Analysis,” Publishing House of Electronics Industry, 1989, pp. 148, 159 & 162.

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