Accelerator systems for low-temperature curing

Details Accelerator systems for low-temperature curing Accelerator systems for low-temperature curing

2004-04-13

2010-12-28

Pyon, Harold Y (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S523000, C528S094000, C548S100000, C548S335100

Reexamination Certificate

active

07858713

ABSTRACT:
Composition comprising as component A) a 1-imidazoly[mothyl-substituted 2-naphthol compound of the general formula (I) where R1, R2and R3each independently of one another are H; C1-17alkyl; C3-12cycloalkyl, optionally substituted byc1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyl groups; C6-10aryl, optionally substituted by 1-3 C1-4-alkyl groups; C7-15,phonylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-17alkenyl; C3-12alkynyl; or aromatic or aliphatic C3-12acyf; R4, R5, R6, R7, R8, and R9each independently of one another are H; C1-12alkyl; C3-12cycloalkyl, optionally substituted by C1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyf groups; C6-10aryl, optionally substituted by 1-3 C1-4alkyl groups; C7-15phenylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-17alkenyl; C3-12alkynyl; C1-12alkoxy; 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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