Sanyo Chemical Industries, Ltd.

Hidefumi Ohta

Motonao Kaku

Munekazu Satake

Kunikiyo Yoshio

Kozaburo Nagata

Hideo Kitagawa

Futoshi Kitatani

Koji Tsutsui

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

The present invention is directed to flexible polyurethane foams useful as seat cushioning material for vehicles, aircraft, furniture and the like. The polyurethane foams are characterized by improved wet compression set properties, improved firmness, resilience and elongation. The foams are made by a process which comprises reacting a polyol having a hydroxyl equivalent of from 800-10,000, a glycerin derivative having oxyethylene groups thereon but characterized by having a significant number of unreacted secondary hydroxyl groups of glycerin, (c) water and (d) an organic polyisocyanate.

Process for manufacturing polyurethane foams

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Kyoto, Japan

Hidefumi Ohta