Basf Wyandotte Corporation

Louis C Pizzini

John T Patton, Jr

William W Levis, Jr

Gerhard G Ramlow

Robert J Hartman

Arthur L Austin

John R Murphy

John G Demou

Curtis J Reichel

John E Davis

Richard A Moore

A polyether-ester polyol containing a high primary hydroxyl content is prepared employing low amounts of ethylene oxide. The polyurethane foams prepared from these products display improved physical properties with good air flow.

Low ethylene oxide/high primary hydroxyl content polyether-ester polyols

An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.

Process for preparing an oxyalkylated product

Process for the preparation of polyurethane foams

Process for preparing a polyurethane foam from an oxyalkylated product

Polyether-ester polyols are prepared in the presence of from 0.005 percent to 0.01 percent by weight (50-100 ppm) of a trialkylamine. The resulting polyols have improved color and are obtained in markedly reduced reaction times.

Process for the preparation of polyether-ester polyols

Oxyalkylated condensation products prepared from aliphatic and aromatic amines, epihalohydrin and alkylene oxides are used in the preparation of polyurethane foams.

Polyurethane foams prepared from condensation products of amines,

Finely-divided dispersed solids are prepared by the emulsion polymerization in the presence of a free radical catalyst of a major amount of an ethylenically unsaturated monomer or mixture of monomers and a minor amount of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000 and containing a polymerizable carbon-to-carbon double bond. The resulting polymeric solids are particularly useful in the preparation of reinforced polymer compositions.

Emulsion polymerization of ethylenically unsaturated monomers in

Polyurethane foam from an oxyalkylated product

Low-viscous, stable polymer dispersions are prepared by blending a hydroxy-containing finely-divided solid polymer with a polyol having an equivalent weight between 500 and 10,000. The resulting dispersions are particularly useful in the preparation of polyurethanes having enhanced physical properties particularly load bearing or hardness, tensile strength and tear resistance.

Low-viscous, stable polymer dispersions and polyurethanes prepared

Low-viscous, stable polymer dispersions are prepared by blending a hydroxy-containing finely divided solid polymer with a polyol having an equivalent weight between 500 and 10,000. The resulting dispersions are particularly useful in the preparation of polyurethanes having enhanced physical properties particularly load bearing or hardness, tensile strength and tear resistance.

Flexible cellular foam compositions are prepared by reacting in the presence of water an organic compound having at least two active hydrogen atoms with an organic polyisocyanate employing an isocyanate index of from about 130 to about 225 in the presence of a catalytically sufficient amount of certain isocyanate trimerization catalysts. The resulting foam compositions exhibit excellent flame retardant properties.

Flexible cellular polyurethane foam compositions having increased flame

Composites based on polyurethane foams heat sealed to a substrate are prepared from polyurethane foams employing a graft polyol as a component of the foam-forming reaction mixture. The resulting composites possess exceptional bonding strength.

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Trenton, MI, United States of America

Louis C Pizzini