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US 2024/0199788 A1Published application
Method of producing morpholine catalysts for rigid foam systems and uses thereof
AssigneeHuntsman Petrochemical Corporation
InventorsMatthew T. Meredith, Jingjun Zhou
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Abstract
A catalyst for use in a rigid foaming system including an isocyanate and a halogenated olefinic blowing agent is described and a process for creating a rigid foaming system thereof. The catalyst can include a morpholine ring and a central N-alkyl group.
Claims8
A polyol resin blend comprising:
- at least one polyhydroxyl compound, at least one halogenated olefinic blowing agent, and a catalyst having the structure:
- where n=2-4 and R=C1-C4 linear or branched alkyl.
A process for producing a rigid polyurethane foam comprising:
- mixing a polyisocyanate with a polyol resin blend, the polyol resin blend containing at least one polyhydroxyl compound, a halogenated olefinic blowing agent, and an amine catalyst having the structure:
- where n=2-4 and R=C1-C4 linear or branched alkyl;
- and
- foaming the polyisocyanate and polyol resin blend mixture,
- wherein the amine catalyst is present in an amount between about 0.1 wt % to about 20 wt % with respect to the total weight of the polyol resin blend.
2 more elements
Dependencies are inferred from the claim text.