Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1990-10-24
1992-04-21
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
528 86, 528 87, 568722, 568728, 568763, C07C 3720, C07C 3916, C08G 5900
Patent
active
051070367
ABSTRACT:
A curing agent for an epoxy resin comprising (A) a polyhydric phenol obtainable by condensing a phenol compound and a hydroxybenzaldehyde and (B) a dihydric phenol, which gives a cured material of an epoxy resin having improved moisture and heat resistance and a small coefficient of linear thermal expansion.
REFERENCES:
patent: 2807653 (1957-09-01), Filbey et al.
patent: 3832409 (1974-08-01), Endres et al.
patent: 4895988 (1990-01-01), Clerisi et al.
Ikushima Tadashi
Kanagawa Shuichi
Nakajima Nobuyuki
Saito Noriaki
Sakamoto Hideshi
Lone Werren B.
Sumitomo Chemical Company Limited
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