Catalyst for making fluoroelastomer compositions and methods...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C525S326400, C525S359300

Reexamination Certificate

active

11211884

ABSTRACT:
A catalyst is preparable from a first component represented by R′C(CF2R)O−Q+and a second component (NCCFR″)bZ. The catalyst may be combined with a fluoropolymer having nitrogen-containing cure-sites to form a curable composition that is useful for preparing fluoroelastomer compositions.

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