Composition
An isocyanate reactive composition including at least one component selected from the group consisting of a polyether polyol, a polyester polyol, a polyether polyamide and a polyester polyamide; one or more amine components, each of said amine components having a given structure. In some embodiments, the average number of nitrogen atoms of said amine components is in the range of 5 to 10.
1. A method for reducing the emission of at least one of formaldehyde and acetaldehyde from a polyurethane or polyurea foam, by using two or more amine components as an additive in a reaction mixture to produce said polyurethane or polyurea foam, each of said two or more amine components correspond to:
two or more amine components having a structure according to the formulae
and
one or more amine components having a structure according to the formula
wherein R a for at least one of the amine components of formula (1) comprises 3 to 6 nitrogen atoms and R a for at least one of the amine components of formula (1) comprises 7 to 17 nitrogen atoms, R b comprises 2 to 16 nitrogen atoms and each of R a and R b independently comprises a plurality of units selected from at least one of R1, R2, and R3, combined in a random sequence, wherein:
R1 is
R2 is
and R3 is
wherein each of R 4 , R 5 , R 6 and R 7 individually are —H or —CH 3 ; and wherein the amount of the one or more amine components in the composition is between 0.05% wt and 1% wt calculated on the total weight of the composition.
2. A method according to claim 1 , wherein the average number of nitrogen atoms of said one or more amine components is in the range of 5 to 10.
3. A method according to claim 1 , wherein said two or more amine components are amine components with at least one of each the following formulas
wherein each of R a and R b is independently a random sequence of at least one of units R1, R2, and R3, wherein
R1 is
R2 is
and
R3 is
4. A method according to claim 1 , wherein said reaction mixture comprises:
at least one isocyanate component;
at least one isocyanate reactive component comprising one or more reactive hydrogen atom, wherein the at least one isocyanate reactive component is selected from a polyether polyol, a polyester polyol, a polyether polyamide, and a polyester polyamide;
catalysts selected from the group consisting of blowing and gelling catalysts; and
optionally, fire retardants, antioxidants, surfactants, physical or chemical blowing agents, fillers, pigments, or any other typical additives used in polyurethane materials.
5. A method according to claim 1 , wherein said one or more amine components is provided to the reaction mixture as part of the isocyanate reactive component.