Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1992-04-14
1993-04-20
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
528403, C08G 6504, C08G 6502
Patent
active
052044440
ABSTRACT:
Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epoxy alcohols to form higher molecular weight polyethercyclicpolyols.
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Blytas George C.
Frank Harry
Zuzich Anne H.
Kight III John
Shell Oil Company
Wright Shelley
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