Compounds containing tertiary amino groups, a process for their production and their use as catalysts
AssigneeBayer Aktiengesellschaft
InventorsJosef Sanders, Ulrich Liman, Klaus Konig
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Abstract
Compounds containing ester groups and tertiary amino groups and optionally hydroxyl groups are made by reacting optionally hydroxyfunctional acetoacetic acid esters of monofunctional or polyfunctional alcohols (particularly polyfunctional polyether polyols) with primary/tertiary polyamines (particularly diamines). These compounds are useful as optionally incorporable catalysts for the isocyanate addition reaction in the production of polyurethane foams by the isocyanate polyaddition process.
Claims6
A compound containing a tertiary amino group which corresponds to the following Formula (I):
- ##STR8## in which Q represents a residue obtained by removal of one or more hydroxyl groups from an (m+n)-functional alcohol having a molecular weight of from about 106 to about 6,000,
- Y represents a difunctional aliphatic hydrocarbon radical containing from 2 to 6 carbon atoms with at least two carbon atoms being arranged between the two nitrogen atoms,
- R.sup.1 and R.sup.2 which may be the same or different, each represents an alkyl radical which radicals may together with the nitrogen atom and, optionally, other optionally alkyl-substituted hetero atoms form a saturated heterocyclic ring,
- m represents a number from 0 to 7 and
- n represents a number from 1 to 8,
- with the proviso that the sum m+n is a number from 1 to 8.
A process for the production of polyurethane foams comprising reacting
- (a) an organic polyisocyanate with
- (b) an isocyanate-reactive compound in the presence of
- (c) a catalyst containing a tertiary amino group which corresponds to the formula:
- ##STR11## in which Q represents a residue obtained by removal of one or more hydroxyl groups from an (m+n)-functional alcohol having a molecular weight of from about 32 to about 6,000,
- Y represents a difunctional aliphatic hydrocarbon radical containing from 2 to 6 carbon atoms with at least two carbon atoms being arranged between the two nitrogen atoms,
- R.sup.1 and R.sup.2 which may be the same or different, each represents an alkyl radical which radicals may together with the nitrogen atom and, optionally, other optionally alkyl-substituted hetero atoms form a saturated heterocyclic ring,
- m represents a number from 0 to 7 and
- n represents a number from 1 to 8,
- with the proviso that the sum m+n is a number from 1 to 8.
A process for the production of composite materials from plastic films and polyurethane foam comprising backfoaming
- (1) a plastic film with
- (2) a reaction mixture comprising
- (a) an organic polyisocyanate,
- (b) an isocyanate-reactive compound and
- (c) a catalyst containing a tertiary amino group which corresponds to the following formula:
- ##STR12## in which Q represents a residue obtained by removal of one or more hydroxyl groups from an (m+n)-functional alcohol having a molecular weight of from about 32 to about 6,000,
- Y represents a difunctional aliphatic hydrocarbon radical containing from 2 to 6 carbon atoms with at least two carbon atoms being arranged between the two nitrogen atoms,
- R.sup.1 and R.sup.2 which may be the same or different, each represents an alkyl radical which radicals may together with the nitrogen atom and, optionally, other optionally alkyl-substituted hetero atoms form a saturated heterocyclic ring,
- m represents a number from 0 to 7 and
- n represents a number from 1 to 8,
- with the proviso that the sum m+n is a number from 1 to 8.
Dependencies are inferred from the claim text.