Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-06-07
2011-06-07
Lu, Caixia (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S160000, C526S161000, C526S165000, C526S943000, C502S103000, C502S152000, C502S162000
Reexamination Certificate
active
07956148
ABSTRACT:
The present invention relates to a process for the preparation of polypropylene using a catalyst system of low porosity, the catalyst system comprising an asymmetric catalyst, wherein the catalyst system has a porosity of less than 1.40 ml/g.
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Ernst Eberhard
Stadlbauer Manfred
Borealis Technology Oy
Fay Sharpe LLP
Lu Caixia
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