US 7,479,527 B2
Polyepoxide and reaction product of aminoalkylimidazole, polyamine, urea and diepoxide as curing component
Masao Kubota, Saitama (Japan); and Ritaro Nagabuchi, Saitama (Japan)
Assigned to Fuji Kasei Kogyo Co., Ltd., Tokyo (Japan)
Filed on Aug. 02, 2006, as Appl. No. 11/461,850.
Prior Publication US 2008/0033116 A1, Feb. 07, 2008
Int. Cl. C08G 59/50 (2006.01); C08L 63/02 (2006.01)
U.S. Cl. 525—526  [525/481; 525/527] 10 Claims
 
1. A one-component heat curable epoxide composition which comprises
(A) an epoxide having more than one epoxy group on average in the molecule thereof, and
(B) a curing compound which is prepared by reacting with heating
(a) an aminoalkylimidazole of the general formula:

OG Complex Work Unit Drawing
 wherein R1 is a hydrogen atom, an alkyl group or an aryl group, R2 is a hydrogen atom or an alkyl group, R3 is a hydrogen atom or an alkyl group and n is an integer of two or three,
(b) an amine having two nitrogen atoms with one or two active hydrogen atoms and having at least one cyclic structure group in the molecule thereof,
(c) urea, and
(d) a diepoxide having two epoxy groups on average in the molecule thereof.