Non-emissive amine composition for improved system shelf life stability
AssigneeEvonik Degussa GmbH
InventorsJuan Jesus Burdeniuc, Michael James Williams, Renee Jo Keller
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Abstract
Catalyst compositions useful in the production of low or no amine emission flexible polyurethane foam as well as rigid insulating polyurethane foam produced with systems containing polyether, polyester, Mannich polyols as well as organic-halogen containing flame retardants and blowing agents, are disclosed. The catalysts are characterized by the presence of amine compositions containing unsaturated aliphatic substituent together with secondary hydroxyl groups able to bind to polyurethane polymers and render a low odor and no or low amine emissions finished product.
Claims16
A catalyst composition comprising a reaction product of (a) at least one compound having at least a tertiary amine group and at least one isocyanate reactive group, and (b) at least one alkylene oxide;
- wherein the at least one compound comprises a structure of:
- NR1R2R3
- wherein R1 is 2-hydroxyethyl (HO—CH2—CH2—) or 2-hydroxypropyl (CH3—CH(OH)—CH2—);
- R2 is —C3H7 (—CH2—CH2—CH3) or —C3H5 (—CH2—CH═CH2);
- R3 is Me2N—CH2—CH═CH— or Me2N—CH2—CH2—CH2—;
- and wherein R2 is —C3H7 (—CH2—CH2—CH3) when R3 is Me2N—CH2—CH═CH—;
- or R2 is C3H5 (—CH2—CH═CH2) when R3 is Me2N—CH2—CH2—CH2—.
A catalyst composition comprising a reaction product of (a) at least one compound having at least a tertiary amine group and at least one isocyanate reactive group, and (b) at least one alkylene oxide;
- wherein the at least one compound comprises a structure of:
- R1R2N—(CH2)n—N(R3)—(CH2)n—NR1R2
- wherein R1 and R2 are independently a C1-C4 alkyl group and R3 is —CH2—CH(R4)—OH where R4 is a C1-C4 alkyl group and n is an integer number from 2 to 6, and the alkylene oxide comprises a structure of:
- where R5 is H or C1-C6 alkyl.
A catalyst composition comprising (a) at least one compound selected from the group consisting of bis(dimethylaminopropyl)-2-hydroxypropyl-amine, N-(dimethylaminopropyl)-N-2-hydroxypropyl-N-propenyl amine and N-(dimethylaminopropenyl)-N-2-hydroxypropyl-N-propyl amine, and (b) at least one alkylene oxide.
A catalyst composition comprising at least one of N-(dimethylaminopropyl)-N-2-hydroxypropyl-N-propenyl amine and N-(dimethylaminopropenyl)-N-2-hydroxypropyl-N-propyl amine.
Dependencies are inferred from the claim text.