Phosphorous containing flame retardants
AssigneeBASF SE
InventorsMarco BALBO BLOCK, Jens FERBITS, Christoph FLECKENSTEIN, Birgit HUPKA
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Abstract
The present invention relates to a phosphorus containing polyol, obtainable or obtained by a process comprising the reaction of at least one polyol with a phosphorus containing compound of the general formula (I) as defined herein, as well as the process for preparing a phosphorus containing polyol, comprising the reaction of at least one polyol with a phosphorus containing compound of the general formula (I). Furthermore, the present invention relates to the use of a phosphorus containing polyol as disclosed herein as a flame retardant, to a process for the preparation of a polyurethane and the polyurethane as such.
Claims14
A phosphorous-comprising polyol, obtained by a process comprising reacting at least one polyol with a phosphorous-comprising compound of formula (I):
- wherein
- X represents Cl, Br, I, alkoxy, or hydrogen,
- Y represents O or S,
- t is 0 or 1,
- R1 and R2 independently represent C1-C16-alkyl, C2-C16-alkenyl, C2-C16-alkynyl, C1-C16-alkoxy, C2-C16-alkenoxy, C2-C16-alkynoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, aryl, aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, C1-C16-alkyl- C6-C10-aryl, or C1-C16-alkyl- C6-C10-aryloxy,
- wherein the phosphorous-comprising polyol comprises at least one phosphorous-comprising group of formula (II):
- wherein
- Y represents O or S,
- t is 0 or 1,
- R1 and R2 independently represent C1-C16-alkyl, C2-C16-alkenyl, C2-C16-alkynyl, C1-C16-alkoxy, C2-C16-alkenoxy, C2-C16-alkynoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, aryl, aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, C1-C16-alkyl- C6-C10-aryl, or C1-C16-alkyl- C6-C10-aryloxy,
- wherein the polyol is selected from the group consisting of a polyether polyol, a polyester polyol, and a mixture thereof, and
- wherein a phosphorus content of the phosphorous-comprising polyol is at least 7% by weight
A process for preparing a phosphorous-comprising polyol, the process comprising
- reacting at least one polyol with a phosphorous-comprising compound of formula (I):
- wherein
- X represents Cl, Br, I, alkoxy, or hydrogen,
- Y represents O or S,
- t is 0 or 1,
- R1 and R2 independently represent C1-C16-alkyl, C2-C16-alkenyl, C2-C16-alkynyl, C1-C16-alkoxy, C2-C16-alkenoxy, C2-C16-alkynoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, aryl, aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, C1-C16-alkyl- C6-C10-aryl, or C1-C16-alkyl- C6-C10-aryloxy,
- wherein the phosphorous-comprising polyol comprises at least one phosphorous-comprising group of formula (II):
- wherein
- Y represents O or S,
- t is 0 or 1,
- R1 and R2 independently represent C1-C16-alkyl, C2-C16-alkenyl, C2-C16-alkynyl, C1-C16-alkoxy, C2-C16-alkenoxy, C2-C16-alkynoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, aryl, aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, C1-C 16-alkyl- C6-C10-aryl, or C1-C16-alkyl- C6-C10-aryloxy, wherein the polyol is selected from the group consisting of a polyether polyol, a polyester polyol, and a mixture thereof, and
- wherein a phosphorus content of the phosphorous-comprising polyol is at least 7% by weight.
Dependencies are inferred from the claim text.