Tertiary amine composition and method for making the composition
AssigneeAir Products and Chemicals, Inc.
InventorsJuan Jesus Burdeniuc, Jennifer Elizabeth Antoline Al-Rashid, Andrew Wilson Wang, Diana Sue Dunn, You-Moon Jeon, Jane Garrett Kniss, Stephan Hermann Wendel
Life of this patent
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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.
Claims20
A composition obtained by contacting at least one liquid tertiary amine with at least one inert gas wherein the amine and gas are in equilibrium and wherein the partial pressure of oxygen in the composition is less than under ambient conditions and wherein the amine contains at least one isocyanate reactive group comprising at least one member selected from the group consisting of secondary amine, hydroxyl, amide and urea and the composition is substantially free of anti-oxidants, DMF and formaldehyde.
A composition in a sealed container obtained by contacting at least one liquid tertiary amine catalyst with at least one inert gas wherein the amine catalyst and gas are in equilibrium;
- wherein the composition is substantially free of anti-oxidants and wherein the partial pressure of inert gas is higher than about 600 mmHg (0.79 atm) and the partial pressure of oxygen is lower than about 160 mm Hg (0.21 atm).
A composition in a sealed container consisting essentially of at least one liquid tertiary amine catalyst that has been bubbled with at least one inert gas wherein the amine catalyst and gas are in equilibrium and wherein the partial pressure of oxygen in the amine catalyst in the container is less than under ambient conditions and wherein the composition is substantially free of anti-oxidants, DMF and formaldehyde.
Dependencies are inferred from the claim text.