Dainippon Ink and Chemicals, Incorporated

Taisei Road Construction Co., Ltd.

Yoshitami Araki

Noboru Okoshi

Masatoshi Motomura

Ichiro Muramatsu

Kenichiro Nomura

Takehisa Kozai

Toru Sato

Takahiko Ito

Niichi Toyama

Hiroshi Mita

Disclosed is a construction material containing bitumen comprising (A) a polyol component, the polyol component consisting essentially of (a-1) a hydroxy-polyoxyalkylene ether of bisphenol A and/or bisphenol F, and (a-2) an aliphatic polyol, (B) a polyisocyanate component, (C) a bitumen, and/or (D) an aggregate. The construction material has improved water-proof and mechanical properties.

Construction material containing bituminous substances

A working material for construction or repair comprising (A) a mixture of 0.5 to 30% by weight of (a-1) a hydroxide of a divalent or higher basic metal, 10 to 99% by weight of (a-2) an aggregate and 0.5 to 70% of (a-3) a bituminous substance, the total amount of these materials (a-1), (a-2) and (a-3) being 100% by weight, and covering the mixture (A), (C) oxidized rosin or a mixture of (C) oxidized rosin with (D) a compound containing more than one carboxy group per molecule on an average and/or (B) a liquid hydrocarbon or a vegetable oil.

Working material for construction or repair

An epoxy resin composition is provided consisting essentially of

Epoxy resin composition and construction material containing the same

Growing community of inventors

Kisai, Japan

Yoshitami Araki