Process to simultaneously reactor-fill polyolefins and compatibi

Details Process to simultaneously reactor-fill polyolefins and compatibi Process to simultaneously reactor-fill polyolefins and compatibi

1993-08-30

1995-06-06

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524855, 526119, C08K 902, C08K 904, C08F 4655

Patent

active

054223865

ABSTRACT:
The present invention relates to a process to simultaneously reactor-fill polyolefins and to a compatibilized, reactor-filled polyolefin composite produced by the process of the instant invention. More specifically, the instant invention provides a process to simultaneously reactor-fill-polyolefins comprising the steps of (a) treating a filler with a catalytic amount of an organometallic compound prior to using the filler for in-situ polymerization; (b) contacting the product of step (a) in random order of no specific sequence with a high activity polymerization catalyst, a cocatalyst, and, if necessary a cocatalyst modifier such that said contacting results in the formation of an interpenetrating, compatibilizing polymer in the pores and surface of the filler when exposed to a monomer; and (c) adding an alpha-olefin under olefin polymerization reaction conditions to the reaction product of step (b) to form a reactor-filled composite.

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"Polymerization of Ethene by Ziegler Catalysts in the Presence of Fillers", Schoppel, et al., Makromol. Chem., Rapid Commun., vol. 3, pp. 483-488 (1982).

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