Composition to reduce the amount of aldehydes emitted from polyurethane foams
AssigneeHuntsman Petrochemical Corporation
InventorsGeert Lodewijk Dries, Eugene P Wiltz, Jr., Robert Allison Grigsby, Jr.
Life of this patent
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Abstract
An isocyanate reactive composition comprising At least one component selected from the group consisting of an isocyanate reactive component; a treating agent selected from the group consisting of cyclic urea substituted with at least one isocyanate reactive group, a free radical scavenger, or a polymer acid, or a mixture thereof; one or more amine components, each of said amine components having a given structure.
Claims20
A composition comprising
- at least one isocyanate reactive component selected from the group consisting of a polyether polyol, a polyester polyol, a polyether polyamine and a polyester polyamine;
- a treating agent selected from the group consisting of (i) a cyclic urea substituted with at least one isocyanate reactive group, and (ii) a mixture of a cyclic urea substituted with at least one isocyanate reactive group and a free radical scavenger, and, optionally, a polymer acid;
- and
- one or more amine components having a structure according to one of the formulae
- wherein Ra comprises 3 to 17 nitrogen atoms and Rb comprises 2 to 16 nitrogen atoms, and each of Ra and Rb independently comprises a plurality of units selected from at least one of R1, R2, and/or R3, combined in a random sequence, wherein:
- R1 is
- R2 is
- R3 is
- wherein each of said R4, R5, R6 and R7 individually are —H or —CH3.
A method for reducing the emission of formaldehyde and/or acetaldehyde from a polyurethane or polyurea foam, by using a composition in a reaction mixture to produce said polyurethane or polyurea foam, wherein the composition comprises:
- at least one isocyanate reactive component selected from the group consisting of a polyether polyol, a polyester polyol, a polyether polyamine and a polyester polyamine;
- a treating agent selected from the group consisting of (i) a cyclic urea substituted with at least one isocyanate reactive group, and (ii) a mixture of cyclic urea substituted with at least one isocyanate reactive group and a free radical scavenger, and, optionally, a polymer acid;
- and
- one or more amine components having a structure according to one of the formulae
- wherein Ra comprises 3 to 17 nitrogen atoms and Rb comprises 2 to 16 nitrogen atoms, and each of Ra and Rb independently comprises a plurality of units selected from at least one of R1, R2, and/or R3,combined in a random sequence, wherein:
- R1 is
- R2 is
- R3 is
- wherein each of said R4, R5, R6 and R7 individually are —H or —CH3.
Dependencies are inferred from the claim text.