Aromatic aldehyde, and epoxy resin curing agent and epoxy resin composition comprising the aromatic aldehyde
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsMitsuharu Kitamura, Yutaka Matsuura, Hisayuki Kuwahara, Tomotaka Wada, Yuiga Asai
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Abstract
There are provided a novel aromatic aldehyde compound capable of providing an epoxy resin coating film and an epoxy resin cured material satisfying all of the excellent surface property (smoothness, gloss), drying property, water resistance, transparency and adhesion, and an epoxy resin curing agent and an epoxy resin composition containing the aromatic aldehyde compound. The aromatic aldehyde has a branched alkyl group having 10 to 14 carbon atoms.
Claims8
An epoxy resin curing agent, comprising (A) a polyamine compound and (B) an aromatic aldehyde comprising a branched alkyl group,
- wherein the branched alkyl group has 10 to 14 carbon atoms, and
- wherein the aromatic aldehyde is represented by the following formula (II):
- wherein R1 and R2 each independently represent an alkyl group comprising 1 to 12 carbon atoms, and a total number of the carbon atoms of R1 and R2 is 9 to 13.
A method for producing an aromatic aldehyde, wherein the aromatic aldehyde is represented by the following formula (II):
- wherein R1 and R2 each independently represent an alkyl group comprising 1 to 12 carbon atoms, and a total number of the carbon atoms of R1 and R2 is 9 to 13,
- the method comprising formylating an aromatic compound which has a branched alkyl group comprising 10 to 14 carbon atoms with carbon monoxide in the presence of hydrogen fluoride and boron trifluoride.
Dependencies are inferred from the claim text.