Polyester Polyol-Containing Polyurethane Systems Having Improved Hydrolytic Stability
AssigneeAir Products and Chemicals, Inc.
InventorsGary Dale Andrew, Juan Jesus Burdeniuc, Goran Zarkov
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Abstract
An isocyanate reactive composition for making a polyurethane foam includes a tertiary amine urethane catalyst comprising a di(C1-C4)alkyl fatty alkyl amine and a polyester polyol. The use of one or more of fatty alkyl tertiary amine serves to reduce hydrolysis of the polyester polyol in the isocyanate reactive composition.
Claims22
An isocyanate reactive composition comprising a polyester polyol, water and a urethane catalyst composition comprising a dialkyl fatty alkyl amine of formula (1)
- R1R2NR3 (1)
- where R1 and R2 are independently C1-C4 alkyl groups and R3 is a fatty alkyl of C8-C36.
A polyurethane foam composition comprising the contact product of a polyisocyanate and an isocyanate reactive composition comprising a polyester polyol, water and a urethane catalyst composition comprising a dialkyl fatty alkyl amine of formula (1)
- R1R2NR3 (1)
- where R1 and R2 are independently C1-C4 alkyl groups and R3 is a fatty alkyl of C8-C36.
A method of making a polyurethane foam, the method comprising combining a polyisocyanate and an isocyanate reactive composition comprising a polyester polyol, water and a urethane catalyst composition comprising a dialkyl fatty alkyl amine of formula (1)
- R1R2NR3 (1)
- where R1 and R2 are independently C1-C4 alkyl groups and R3 is a fatty alkyl of C8-C36.
Dependencies are inferred from the claim text.