Brominated flame retardants and polyurethanes containing the same
AssigneeAlbemarle Corporation
InventorsAugusto C. IBAY, Tse-Chong WU, Charles D. VARNADO, JR., Yunqi LIU
Life of this patent
Estimating the term…
Abstract
The disclosure includes brominated alkenyl alcohols, their use as a flame retardant in polyurethane and polyurethane foams, and polyurethanes containing the brominated alkenyl alcohols. Compositions, methods, and processes are disclosed. The brominated alkenyl alcohols used as flame retardants in polyurethanes can be generally described by Formula (I), the scope of which is disclosed herein.
Claims26
A polyurethane comprising a compound of Formula 1,
- wherein
- X1 and X2 are each independently H, Cl, or Br, and at least one of X1 or X2 is Br;
- R1 is H, Cl, Br, C1-C4 alkyl, or —(CR5R6)m—OR7;
- R2 is H or C2-C8 alkylhydroxyl;
- R3, R4, R5 and R6 are each independently H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl or C2-C8 haloalkenyl;
- R7 is H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl, C2-C8 haloalkenyl or C2-C8 alkylhydroxyl;
- n=1-4;
- m=1-4;
- and
- the compound of Formula 1 is chemically bonded in the polyurethane foam through at least one hydroxyl group on the compound;
- with the provisos that
- when R2 is C2-C8 alkylhydroxyl, R7 cannot be C2-C8 alkylhydroxyl;
- or
- when X1 and X2 are both Br and n=1, then the compound cannot be 2,3-dibromoallyl alcohol or 2,3-dibromo-butene-1,4-diol.
13-25. (canceled)
A formulation comprising a compound of Formula I and at least one polyol,
- wherein
- X1 and X2 are each independently H, Cl, or Br, and at least one of X1 or X2 is Br;
- R1 is H, Cl, Br, C1-C4 alkyl, or —(CR5R6)m—OR7;
- R2 is H or C2-C8 alkylhydroxyl;
- R3, R4, R5 and R6 are each independently H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl or C2-C8 haloalkenyl;
- R7 is H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl, C2-C8 haloalkenyl or C2-C8 alkylhydroxyl;
- n=1-4;
- and
- m=1-4;
- with the provisos that
- when R2 is C2-C8 alkylhydroxyl, R7 cannot be C2-C8 alkylhydroxyl;
- or
- when X1 and X2 are both Br and n=1, then the compound cannot be 2,3-dibromoallyl alcohol or 2,3-dibromo-butene-1,4-diol.
(canceled)
A process for forming a polyurethane, the process comprising contacting A) at least one isocyanate and/or polyisocyanate and B) a formulation comprising a compound of Formula 1 and at least one polyol;
- and
- allowing the mixture to cure to form a polyurethane foam;
- wherein
- X1 and X2 are each independently H, Cl, or Br, and at least one of X1 or X2 is Br;
- R1 is H, Cl, Br, C1-C4 alkyl, or —(CR5R6)m—OR7;
- R2 is H or C2-C8 alkylhydroxyl;
- R3, R4, R5 and R6 are each independently H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl or C2-C8 haloalkenyl;
- R7 is H, C1-C8 alkyl, C2-C8 alkenyl, C1-C8 haloalkyl, C2-C8 haloalkenyl or C2-C8 alkylhydroxyl;
- n=1-4;
- and
- m=1-4;
- with the provisos that
- when R2 is C2-C8 alkylhydroxyl, R7 cannot be C2-C8 alkylhydroxyl;
- or
- when X1 and X2 are both Br and n=1, then the compound cannot be 2,3-dibromoallyl alcohol or 2,3-dibromo-butene-1,4-diol.
38-46. (canceled)
Dependencies are inferred from the claim text.