Low odor polyoxyalkylene polyol, process for producing the same and urethane composition
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsKiminori Araki, Kazunori Ishikawa
Life of this patent
Estimating the term…
Abstract
To provide low odor polyoxyalkylene polyol, a process for producing the same, and a low odor urethane prepolymer and a low odor urethane composition using the same as a raw material. The low odor polyoxyalkylene polyol comprising polyoxyalkylene polyol with amine added thereto, the amine having at least one amino group represented by the following formula (1): is provided, wherein R1, R2 and R3 independently represent hydrogen atom or an organic group which may contain a hetero atom in which an atom bonded to nitrogen atom is carbon atom.
Claims7
A process for reducing the aldehyde odor of a polyoxyalkylene polyol comprising adding a primary amine selected from the group of butyl amine, 1,2-dimethylbutyl amine, hexyl amine, isoamyl amine, 2-octyl amine, aminobutanol, 3-decyloxypropyl amine, 3-methoxypropyl amine, 3-isobutoxypropyl amine, 3-lauryloxypropyl amine, 3-myristyloxypropyl amine, lauryl amine, hexadecyl amine, stearyl amine, oleyl amine, polyoxypropylene amine, dimethylaminoethyl amine, ethylaminoethyl amine, diaminopropane, dibutylaminopropyl amine, 2-hydroxyethylaminopropyl amine, bis(3-aminopropyl)ether, diaminobutene, 1,9-nonane diamine, N-aminoethyl piperidine, N-aminopropyl morpholine, iminobispropyl amine, N,N′-bisaminopropyl-1,4-butylene diamine, and polyallyl amine to a polyoxyalkylene polyol having an acetoaldehyde or propionaldehyde odor, said polyoxyalkylene polyol being selected from the group of polypropylene polyol, polyoxyethylenepolyol and propylene oxide-ethylene oxide block copolymer, to form a mixture, and heating the resulting mixture to react the primary amine with the polyoxyalkylene polyol.
Dependencies are inferred from the claim text.