Polymerization of oxiranes with a lithium-containing initiator

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...

Reexamination Certificate

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C528S421000

Reexamination Certificate

active

10852980

ABSTRACT:
A method is provided for polymerizing oxiranes by employing a lithium-containing polymerization initiator in a liquid reaction medium devoid of polymerization additives. Linear and star polymers can be produced by practicing the subject method.

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