Aminocarbonate compounds and their use as catalysts
AssigneeAir Products and Chemicals, Inc.
InventorsArwed Wagner, Klaus Diblitz, Detlef Hoell
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Abstract
Diaminocarbonate compounds are disclosed which are particularly suitable as low-odor catalysts for the production of solid or cellular urethane polymers and/or urea polymers. The compounds are obtainable by reacting amino alcohols with alkyl carbonates.
Claims21
A catalyst composition comprising an aminocarbonate compound corresponding to the general formula I ##STR8## wherein R.sup.1 and R.sup.2, which may be the same or different, are a tertiary amino group corresponding to the general formula II ##STR9## wherein Z.sup.1 and Z.sup.2, which may be the same or different, are methyl or a branched or unbranched alkyl group of 2 to 6 carbon atoms or together form a morpholine group or piperazine group corresponding to the general formulas III and IV, respectively, ##STR10## wherein the groups R.sub.3, R.sub.4, R.sub.5, and R.sub.6, which may be the same or different, are hydrogen or alkyl groups of 1 to 2 carbons and R.sub.7 is hydrogen or an alkyl group of 1 to 2 carbons, and Y is an unbranched or branched alkylene of 2 to 10 carbon atoms and at least one urethane catalyst which is selected from the group consisting of a tertiary amine urethane catalyst, a carboxylate acid salt urethane catalyst, a phosphorus compound urethane catalyst and a metal compound urethane catalyst.
A catalyst composition comprising an aminocarbonate compound corresponding to the general formula I ##STR11## wherein R.sup.1 and R.sup.2, which may be the same or different, are a morpholine group or piperazine group corresponding to the general formulas III and IV, respectively, ##STR12## wherein the groups R.sub.3, R.sub.4, R.sub.5, and R.sub.6, which may be the same or different, are hydrogen or alkyl groups of 1 to 2 carbons and R.sub.7 is hydrogen or an alkyl group of 1 to 2 carbons, and Y is an unbranched or branched alkylene of 2 to 10 carbon atoms, and optionally, at least one urethane catalyst which is selected from the group consisting of a tertiary amine urethane catalyst, a carboxylate acid salt urethane catalyst, a phosphorus compound urethane catalyst and a metal compound urethane catalyst.
In a method for making a polyurethane by reacting a polyisocyanate with a polyol in the presence of a catalyst composition, the improvement which comprises using a catalyst composition comprising an aminocarbonate compound corresponding to the general formula I ##STR13## wherein R.sup.1 is a tertiary amino group corresponding to the general formula II ##STR14## wherein Z.sup.1 and Z.sup.2, which may be the same or different, are methyl or a branched or unbranched alkyl group of 2 to 6 carbon atoms or together form a morpholine group or piperazine group corresponding to the general formulas III and IV, respectively, ##STR15## wherein the groups R.sub.3, R.sub.4, R.sub.5, and R.sub.6, which may be the same or different, are hydrogen or alkyl groups of 1 to 2 carbons and R.sub.7 is hydrogen or an alkyl group of 1 to 2 carbons, and Y is an unbranched or branched alkylene of 2 to 10 carbon atoms or an unbranched or branched alkyl ether of 2 to 10 carbon atoms and 1 to 3 oxygen atoms, and
- R.sup.2 is a tertiary amino group as defined above or a methyl, a branched or unbranched alkyl group of 2 to 20 carbons, phenyl or an alkyl substituted phenyl group of up to 20 carbons, and
- optionally, a tertiary amine urethane catalyst, a carboxylate acid salt urethane catalyst, a phosphorus compound urethane catalyst or a metal compound urethane catalyst.
Dependencies are inferred from the claim text.