Acid-Blocked Alkylaminopyridine Catalysts For Polyurethane Foam
OwnerMatthew T Meredith, DiAnne Phaminventors
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Abstract
The present disclosure relates to acid-blocked alkylaminopyridine catalysts for use in a polyurethane formulation. The polyurethane formulation may include the acid-blocked alkylaminopyridine catalyst, a compound containing an isocyanate functional group, an active hydrogen-containing compound and a halogenated olefin compound.
Claims11
A polyurethane formulation comprising:
- (a) an acid-blocked alkylaminopyridine catalyst obtained by contacting (i) at least one alkylaminopyridine of formula (1) or (2)
- with (ii) at least one of a mineral acid or a carboxylic acid of formula (3)
- where each R is independently an alkyl group, hydroxyethyl group or hydroxypropyl group, n is an integer from 1 to 2, R2 is hydrogen, an alkyl group, an alkenyl group, cycloaliphatic group, an aromatic group, or alkylaromatic group, k and m are independently an integer from 1 to 3 with the proviso that k+m≥1 and when k=1 and m=0, R is an aromatic group or alkylaromatic;
- (b) a compound containing an isocyanate functional group;
- (c) an active hydrogen-containing compound;
- and (d) a halogenated olefin compound.
A catalyst package for use in forming a polyurethane material comprising:
- (a) an acid-blocked alkylaminopyridine catalyst obtained by contacting (i) at least one alkylaminopyridine of formula (1) or (2)
- with (ii) at least one of a mineral acid or a carboxylic acid of formula (3)
- where each R is independently an alkyl group, hydroxyethyl group or hydroxypropyl group, n is an integer from 1 to 2, R2 is hydrogen, an alkyl group, an alkenyl group, cycloaliphatic group, an aromatic group, or alkylaromatic group, k and m are independently an integer from 1 to 3 with the proviso that k+m≥1 and when k=1 and m=0, R is an aromatic group or alkylaromatic;
- (b) and a halogenated olefin compound.
A method for producing a polyurethane material comprising contacting a compound containing an isocyanate functional group, an active hydrogen-containing compound and optional auxiliary components in the presence of at least one acid-blocked alkylaminopyridine obtained by contacting (i) at least one alkylaminopyridine of formula (1) or (2)
- with (ii) at least one of a mineral acid or a carboxylic acid of formula (3)
- where each R is independently an alkyl group, hydroxyethyl group or hydroxypropyl group, n is an integer from 1 to 2, R2 is hydrogen, an alkyl group, an alkenyl group, cycloaliphatic group, an aromatic group, or alkylaromatic group, k and m are independently an integer from 1 to 3 with the proviso that k+m≥1 and when k=1 and m=0, R is an aromatic group or alkylaromatic;
- (b) and a halogenated olefin compound.
Dependencies are inferred from the claim text.