Patent ID: 9062203
Filing Date: 2015-06-23
Classification: B29C,C08J,C08K,C08L,D04H,Y10T

Abstract:
1. A binder composition comprising components [A] and [B]: [A] an amorphous polyamide with a glass transition temperature of 140° C. or higher and comprising a dicyclohexylmethane unit; and [B] toluenesulfonamide; the binder composition contains 40 to 80 mass % of the component [A] and 10 to 40 mass % of the component [B]; and the binder composition complies with the following conditions I) and (II): Condition (I): the glass transition temperature of the binder composition is 40 to 90° C.; and Condition (II): when the mixture obtained by mixing 10 parts by mass of the binder composition with 100 parts by mass of an epoxy resin containing 40 mass % or more of N,N,N′,N′-tetraglycidyl-4,4′- methylenedianiline and stirring at a temperature of 180° C. for 1 hour is observed at a magnification of 5× using a light-field optical microscope, solid particles of the binder composition with particle sizes of 10 μm or larger can be observed, and the viscosity the filtrate obtained by filtering the solid particles from the mixture is 5 times or less the viscosity of the epoxy resin not yet mixed.