Polymer catalyst deactivation and acid neutralization using...

Details Polymer catalyst deactivation and acid neutralization using... Polymer catalyst deactivation and acid neutralization using...

2011-03-15

2011-03-15

Teskin, Fred M (Department: 1762)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S486000, C525S919000

Reexamination Certificate

active

07906614

ABSTRACT:
A process for deactivating an active catalyst species in an olefin polymer stream exiting a polymerization reactor and neutralizing catalyst residues comprising adding to the olefin polymer stream in a quantity at least sufficient to inactivate the catalyst species and neutralize catalyst residues a composition comprising an ionomer having a molecular weight of at least 100 g/mol, and subsequently recovering the resulting polymer product.

REFERENCES:
patent: 4770782 (1988-09-01), Wilkins et al.
patent: 4801683 (1989-01-01), May
patent: 6180730 (2001-01-01), Sibtain et al.
Ionomer definition from http://www.accessscience.com (McGraw-Hill, 2009).

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