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US 2019/0389996 A1Published application
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.
Claims14
1-15. (canceled)
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 (HFO) as blowing agent,
- wherein the diamine is selected from the group consisting of ethylenediamine, toluenediamine (TDA), and mixtures thereof,
- wherein polyol (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.
2 more elements
A process for preparing a polyurethane foam, comprising:
- (i) reacting at least one polyisocyanate with 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 (HFO) as blowing agent,
- wherein the diamine is selected from the group consisting of ethylenediamine, toluenediamine (TDA), and mixtures thereof,
- wherein polyol (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.
3 more elements
Dependencies are inferred from the claim text.