Tertiary amine composition and method for making the composition
AssigneeEvonik Degussa GmbH
InventorsJuan Jesus Burdeniuc, Jennifer Elizabeth Antoline Al-Rashid, Andrew Wilson Wang, Diana Sue Dunn, You-Moon Jeon, Jane Garrett Kniss, Stephan Hermann Wendel
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Abstract
A composition and method for producing a tertiary amine is disclosed. The tertiary amine is contacted with an inert gas. The inert gas is nitrogen or more preferably argon. The amine composition is useful in producing polyurethane foam with lower levels of chemical emissions particularly lower emissions of toxic chemicals.
Claims16
A method of making a polyurethane comprising contacting at least one polyisocyanate with at least one polyol in the presence of a catalytically effective amount of a composition obtained by contacting at least one tertiary amine with at least one inert gas wherein the tertiary amine and gas are in equilibrium, wherein the partial pressure of oxygen in the composition is less than under ambient conditions, wherein the concentration of DMF in the composition is less than about 10 parts per million, wherein the concentration of formaldehyde in the composition is less than about 10 parts per million, and wherein a concentration of antioxidants in the composition is less than about 5 parts per million.
A method of making a polyurethane comprising contacting at least one polyisocyanate with at least one polyol in the presence of a catalytically effective amount of a composition obtained by contacting at least one tertiary amine with at least one inert gas wherein the tertiary amine and gas are in equilibrium, wherein the partial pressure of oxygen in the composition is less than under ambient conditions, wherein the amine contains no isocyanate reactive group, wherein the concentration of DMF in the composition is less than about 10 parts per million, wherein the concentration of formaldehyde in the composition is less than about 10 parts per million, and wherein a concentration of antioxidants in the composition is less than about 5 parts per million.
Dependencies are inferred from the claim text.