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US 12,398,232 B2Granted
HFO containing PU formulation
AssigneeBASF SE
InventorsChristine Rolfsen, Marko Grever, Josep-Daniel Eslava, Mark Elbing
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Abstract
The present invention is directed to polyol composition comprising a polyol mixture (PM) comprising a polyetherol (P1) based on a polyhydric alcohol and a polyetherol (P2) based on a diamine; and at least one hydrohaloolefin (HFO) as blowing agent, a process for preparing a polyurethane foam using said polyol composition and the polyurethane foam obtained or obtainable by said process.
Claims13
A polyol composition, comprising:
- (a) a polyol mixture (PM) comprising a polyetherol (P1) based on a polyhydric alcohol and a polyetherol (P2) based on a diamine;
- and
- (b) at least one hydrohaloolefin as a blowing agent,
- wherein the diamine is selected from the group consisting of etbylenediamine, toluenediamine (TDA), and mixtures thereof,
- polyetherol (P2) is present in the polyol mixture in an amount in the range of from 1 to 40 parts by weight based on the total weight of the polyol mixture,
- said polyol mixture comprises 60 to 80 parts by weight of polyetherol (P1),
- at least one hydrohaloolefin is present in an amount of from 3 to 40 parts by weight based on the total weight of the polyol composition,
- the polyol composition comprises at least one tertiary amine as catalyst, and
- wherein said polyhydric alcohol is at least one selected from the group consisting of sucrose, pentaerythritol, glucose, glycerol, a glycol, trimethylolpropane (TMP), and combinations thereof.
6 more elements
Dependencies are inferred from the claim text.