Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-05-03
2005-05-03
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S160000, C526S169000, C526S169100, C526S172000, C526S170000, C526S348000
Reexamination Certificate
active
06887958
ABSTRACT:
Ethylene or propylene are copolymerized with one another or with other olefinically unsaturated compounds in the presence of a catalyst system comprising the following components:A) a complex of a transition metal with one or two substituted or unsubstituted 1,3,5-triazacyclohexane ligands or corresponding ligands in which one or more of the ring nitrogens are replaced by phosphorus or arsenic atoms, andB) if desired, one or more activator compounds.
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Köhn Randolf
Mihan Shahram
Seifert Guido
BASF - Aktiengesellschaft
Keil & Weinkauf
Lee Rip A.
Wu David W.
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