Properties tailoring in silsesquioxanes

Details Properties tailoring in silsesquioxanes Properties tailoring in silsesquioxanes

2009-10-30

2011-11-08

Loewe, Robert (Department: 1766)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C556S460000, C528S012000

Reexamination Certificate

active

08053514

ABSTRACT:
Fluoride catalyzed rearrangement reactions of polymeric silsesquioxanes [RSiO1.5]ninvolve reacting at least one silsesquioxane material with a catalytic amount of an organic fluoride at a temperature ranging from about −50° C. to about 120° C. thereby forming a reaction mixture for a period ranging from 60 minutes to 48 hours. To the reaction mixture, a quenching agent is added to remove fluoride from the reaction mixture. A silsesquioxane cage compound can be isolated from the reaction mixture using a precipitation or other extraction process.

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