Aldehyde scavengers for polyurethane foams
AssigneeEvonik Operations GmbH
InventorsSheng Su, Juan Jesus Burdeniuc, Gauri Sankar Lal, Jennifer Elizabeth Antoline Al-Rashid, Torsten Panitzsch
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Abstract
A polyurethane composition comprising an aldehyde scavenger, a polyurethane product, and a process for making polyurethane foam are disclosed. The scavenger compounds can reduce, if not eliminate, the emissions of aldehydes from polyurethane foams. The scavenger compounds comprise at least one member selected from the group consisting of: phenol or substituted phenol, a 1,3-dicarbonyl compound, a polyamine bearing a 1,3-propanediamino function, melamine, a 1,2-diaminocycloalkane, an ammonium salt; a compound containing the bisulfite anion, titanium dioxide and aminosiloxane.
Claims5
A composition comprising at least one aldehyde scavenger, at least one polyol, water and at least one amine catalyst, wherein the at least one aldehyde scavenger comprises at least one polyamine bearing a 1,3-propanediamino function;
- wherein the at least one polyamine is selected from the group consisting of N′N′-diphenylpropanediamine, 1-Benzyl-1,3-propanediamine, isotridecyloxypropyl-1,3-diaminopropane, dodecyloxypropyl-1,3-diaminopropane, and hexyloxypropyl-1,3-diaminopropane;
- and wherein the aldehyde scavenger is present in an amount of about 0.05 parts per hundred parts of the at least one polyol to 2.0 parts per hundred parts of the at least one polyol.
A composition comprising at least one aldehyde scavenger, at least one amine catalyst and at least one diluent, wherein the aldehyde scavenger comprises at least one polyamine bearing a 1,3-propanediamino function;
- wherein the at least one polyamine is selected from the group consisting of NW′-diphenylpropanediamine, 1-Benzyl-1,3-propanediamine, isotridecyloxypropyl-1,3-diaminopropane, dodecyloxypropyl-1,3-diaminopropane, and hexyloxypropyl-1,3-diaminopropane.
Dependencies are inferred from the claim text.