Tris(pentafluorophenyl)borane complexes and catalysts derived th

Details Tris(pentafluorophenyl)borane complexes and catalysts derived th Tris(pentafluorophenyl)borane complexes and catalysts derived th

1994-07-29

1995-05-16

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526134, 526239, 526279, 526308, 526336, 5263483, 5263484, 5263485, 526352, C05F 476

Patent

active

054161770

ABSTRACT:
Tris(pentafluorophenyl)borane complexes having the general formula (C.sub.6 F.sub.5).sub.3 B.(YXH).sub.q wherein X is oxygen, or sulfur; q is i to 3; Y is a hydrogen atom, R.sup.1 --, (R.sup.2).sub.3 Si--, or (R.sup.3).sub.2 C.dbd.N--; R.sup.1 is a hydrocarbyl group containing 1 to 500 carbon atoms, and may contain a divalent oxygen and further may be a fluorine-containing hydrocarbyl group; R.sup.2 is independently a linear or branched alkyl group containing 1 to 25 carbon atoms, or a phenyl group, further R.sup.2 may contain a SiO-- group; and R.sup.3 is independently a hydrocarbyl group containing 1 to 25 carbon atoms, R.sup.3 may be a hydrogen atom provided both R.sup.3 groups selected are not hydrogen atoms; and to complexes containing the borane complexes with an organometallic compound, either as a neutral compound or as an acidic salt that are useful as catalysts for polymerization and copolymerization of olefins and to polymeric products prepared using these catalysts.

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