Basf Wyandotte Corporation

Richard A Moore

Duane A Heyman

Gerhard G Ramlow

Theodore O Stolz

James P Lutz

John T Patton, Jr

William W Levis, Jr

Louis C Pizzini

Robert J Hartman

Ralph E Bloom

The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with the glycerin, pentaerythritol, sucrose, sorbitol, trimethylolpropane, and mixtures thereof. The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.

Alkylene oxide adducts of vicinal toluenediamine and co-initiators,

The subject invention relates to polyol compositions which are alkylene oxide adducts of a mixture of initiators comprising vicinal toluenediamine and an initiator selected from the group consisting of ammonia, an aliphatic amine having a molecular weight of from 20 to 120, an alkanolamine having a molecular weight of from 50 to 120, and mixtures thereof. Low molecular weight diols may also be used as a co-initiator in combination with ammonia, an aliphatic amine, an alkanolamine, or mixtures thereof. The subject polyol compositions are particularly useful in the preparation of rigid polyurethane foams.

Alkylene oxide adducts of vicinal toluenediamine

Finely-divided polymeric solids are prepared by free-radical polymerization on ethylenically unsaturated monomer or monomers in an organic solvent employing an alkylene oxide adduct of a styrene-allyl alcohol copolymer stabilizer.

Process for the preparation of finely divided solid polymers in polyol

Stable graft polymer dispersions are prepared employing in situ free-radical polymerization of ethylenically unsaturated monomer or monomers in polyol in the presence of an alkylene oxide adduct of a styrene-allyl alcohol copolymer stabilizer.

Process for the preparation of stabilized polymer dispersions in polyol

Synergistic stabilizer combinations consisting of phenols such as 2,6,-di-t-butyl-4-methylphenol, amines such as 4,4'-bis(alpha,alpha- dimethylbenzyl)diphenylamine and p,p'-di-octyldiphenylamine, and phosphites such as phenyldidecylphosphite with 3,5-di-t-butyl-4-hydroxyhydrocinnamic acid triester of 1,3,5-tris(2-hydroxyethyl)-s-triazine-2,4,6-(1H,3H,5H-trione are employed as oxidative stabilizers for polyoxyalkylene polyether polyols and for the prevention of scorch in polyurethane foams prepared therefrom.

Stabilized polyoxyalkylene polyether polyol

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

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Trenton, MI, United States of America

Richard A Moore