Patent Number: 6,441,106

Title: Hardener for epoxy resin, epoxy resin composition, and process for producing silane-modified phenolic resin

Abstract: The present invention provides a curing agent for epoxy resin containing a siloxane-modified phenol resin (3) obtained by dealcoholization condensation reaction between a phenol resin (1) and a hydrolyzable alkoxysilane (2). The present invention further provides an epoxy resin composition comprising an epoxy resin and the above-mentioned curing agent for epoxy resin. The present invention further provides a method for preparing a siloxane-modified phenol resin (3) characterized by subjecting a phenol resin (1) and a hydrolyzable alkoxysilane (2) to dealcoholization condensation reaction.

Inventors: Goda; Hideki (Kyotanabe, JP), Takeda; Shoji (Higashiosaka, JP)

Assignee: Arakawa Chemical Industries, Ltd.

International Classification: C08G 59/40 (20060101); C08L 63/00 (20060101); C08G 8/28 (20060101); C08G 8/00 (20060101); C08G 59/00 (20060101); C08G 059/18 (); C08G 059/40 (); C08G 008/28 ()

Expiration Date: 08/27/2019