Importance

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Abstract

Composition comprising as component A) a 1-imidazoly[mothyl-substituted 2-naphthol compound of the general formula (I) where R₁, R₂ and R₃ each independently of one another are H; C_1-17alkyl; C_3-12cycloalkyl, optionally substituted by _c1-4alkyl groups; C4_-20cycloalkyl-alkyl, optionally substituted by C_1-4alkyl groups; C_6-10aryl, optionally substituted by 1-3 C_1-4-alkyl groups; C_7-15,phonylalkyl, optionally substituted by 1-3 C_1-4alkyl groups; C_3-17alkenyl; C_3-12alkynyl; or aromatic or aliphatic C_3-12acyf; R₄, R₅, R₆, R₇, R₈, and R₉ each independently of one another are H; C_1-12alkyl; C_3-12cycloalkyl, optionally substituted by C_1-4alkyl groups; C_4-20cycloalkyl-alkyl, optionally substituted by C_1-4alkyf groups; C_6-10aryl, optionally substituted by 1-3 C_1-4alkyl groups; C_7-15phenylalkyl, optionally substituted by 1-3 C_1-4alkyl groups; C_3-17alkenyl; C_3-12alkynyl; C_1-12alkoxy; or OH; and as component B) a phenol which is liquid at room temperature, the weight ratio of component A) to component B) being from 10:90 to 80:20 as accelerator for curable epoxy resin compositions which are used as a compression moulding compound, sinter powder, encapsulating system, casting resin, or for producing prepregs and laminates having very good interlaminar shear strength values using impregnating methods or injection methods, for producing components, especially components of large surface area.

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First Claim