申请人:Hanson Mark V.
公开号:US20080221230A1
公开(公告)日:2008-09-11
The invention is a flame retardant for styrene foams. The flame retardant contains both aromatic bromine and an olefin. The olefin is an internal olefin. Desirable flame retardants are selected from:
formula I:
wherein R
1
is C
1
-C
6
and optionally containing a heteroatom or olefin; R
2
is C
1
-C
6
and optionally containing a heteroatom or olefin; and R
3
-R
12
is H, C
1
-C
6
(optionally containing a heteroatom), or halogen; and further wherein the compound of formula I is present in a concentration of at least 50 percent of a trans isomer;
formula II:
wherein R
1
is Halogen, C
1
-C
6
and optionally containing a heteroatom or olefin; R
2
is Halogen, C
1
-C
6
and optionally containing a heteroatom or olefin; and R
3
-R
7
is H, C
1
-C
6
(optionally containing a heteroatom), or halogen; and
formula III:
wherein R
1
is Halogen, C
1
-C
6
and optionally containing a heteroatom or olefin; R
2
is Halogen, H, C
1
-C
6
and optionally containing a heteroatom or olefin; and R
3
-R
6
is H, halogen.
这项发明是用于苯乙烯泡沫的阻燃剂。该阻燃剂含有芳香溴和烯烃。烯烃是内烯烃。从以下理想的阻燃剂中选择:公式I:其中R1是C1-C6,可选地含有杂原子或烯烃;R2是C1-C6,可选地含有杂原子或烯烃;R3-R12是H,C1-C6(可选地含有杂原子),或卤素;进一步,公式I的化合物以至少50%的反式异构体的浓度存在;公式II:其中R1是卤素,C1-C6,可选地含有杂原子或烯烃;R2是卤素,C1-C6,可选地含有杂原子或烯烃;R3-R7是H,C1-C6(可选地含有杂原子),或卤素;和公式III:其中R1是卤素,C1-C6,可选地含有杂原子或烯烃;R2是卤素,H,C1-C6,可选地含有杂原子或烯烃;R3-R6是H,卤素。