Process for the preparation of a polyurethane foam
OwnerJoo-Hee KANG, Ferdinand HARDINGHAUS +2inventors
InventorsJoo-Hee KANG, Ferdinand HARDINGHAUS, Karsten BÖRNER, Jean FABRE
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Abstract
The present invention relates to processes for the preparation of polyurethane foams comprising a step wherein a chemical compound with a low particle size releases a chemical and/or physical blowing agent by decomposition, polyurethane foams prepared by such processes as well as compositions comprising at least one polyol and a chemical compound with a low particle size capable of releasing a chemical and/or physical blowing agent by thermally- and/or chemically-induced degradation and uses of such compositions.
Claims21
A process for the preparation of a polyurethane foam or a modified polyurethane foam, the process comprising a step wherein a chemical compound releases a chemical and/or physical blowing agent by thermally- and/or chemically-induced decomposition wherein the chemical compound has a particle size distribution expressed as a D50 of equal to or less than 1 μm.
A composition comprising at least one polyol and a chemical compound capable of releasing a chemical and/or physical blowing agent by thermally- and/or chemically-induced degradation wherein the chemical compound has a particle size distribution expressed as a D50 of equal to or less than 1 μm.
(canceled)
Dependencies are inferred from the claim text.