Taoka Chemical Company, Limited

Sumitomo Chemical Company, Limited

Sanyo Chemical Industries, Ltd.

Hideo Kitagawa

Yutaka Nishii

Munekazu Satake

Hideo Kawashita

Kunikiyo Yoshio

Motonao Kaku

Hidefumi Ohta

Shinjiro Kawasaki

Koji Tsutsui

Sinjiro Kawasaki

Minoru Akagi

The present invention relates to polyether compounds, active hydrogen compounds and resin-forming compositions composed of the polyols, and methods for producing foams by employing the active hydrogen components. These polyether compounds have a decreased number of moles of added EO thereby maintaining the hydrophobicity and have sufficient reactivity as polyol components of resins, thereby having high reaction rates. Therefore, it is possible to provide resins having excellent resin properties (tensile strength, flexural strength, water-absorption swelling ratio, etc.).

Polyether, active-hydrogen ingredient, resin-forming composition, and process for producing foam

An azo compound of the formula: ##STR1## wherein R is of the formula: ##STR2## R.sub.1 is hydrogen, methyl or --SO.sub.3 M; R.sub.2 is hydrogen or --SO.sub.3 M; R.sub.2 is hydrogen or --SO.sub.3 M; R.sub.3 is C.sub.4 -C.sub.18 alkyl and M is hydrogen, an alkali metal, ammonium or organic ammonium, provided that when R includes --SO.sub.3 M, R.sub.1 l and R.sub.2 are not --SO.sub.3 M, and when R does not include --SO.sub.3 M, either one of R.sub.1 and R.sub.2 is --SO.sub.3 M, which is useful as a black dyestuff for a solvent type ink composition, particularly for ink jet recording.

Trisazo compounds useful in producing water-resistant ink compositions

A dye solution composition containing a black dye obtained by the action of at least one acid or its salt:

Dye solution composition

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Kyoto, Japan

Hideo Kitagawa