Method for preparing flexible slabstock polyurethane foam
AssigneeEvonik Operations GmbH
InventorsJuan Jesus Burdeniuc, Renee Jo Keller
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Abstract
A method for preparing flexible slabstock polyurethane foam comprising contacting at least one polyisocyanate with at least one polyol in the presence of at least one polyurethane additive selected from the group consisting of a blowing agent, a cell stabilizer, and a crosslinker, and a catalyst composition comprising at least one compound represented by formula (I): (I), wherein R1, R2, R3, R4, and R5 are each independently C1-C3 alkyl, or C2-C6 alkenyl linear or branched.
Claims20
A method for preparing flexible slabstock polyurethane foam comprising contacting at least one polyisocyanate with at least one polyol in the presence of at least one polyurethane additive selected from the group consisting of a blowing agent, a cell stabilizer, and a crosslinker, and a catalyst composition comprising at least one compound represented by formula (I):
- wherein R1, R2, R3, R4, and R5 are each independently C1-C3 alkyl, or C2-C6 alkenyl linear or branched.
A method for preparing bis(N,N-2-dimethylaminoethoxyethyl)methylamine, the method comprising the following steps:
- (a) reacting dimethylaminoethoxyethanol with methylamine, thereby providing a mixture comprising bis(N,N-2-dimethylaminoethoxyethyl)methylamine, N,N,N′-trimethylbis(aminoethyl)ether and other components;
- and
- (b) separating bis(N,N-2-dimethylaminoethoxyethyl)methylamine from the mixture.
Dependencies are inferred from the claim text.