Cationic polymerization of cyclic ethers

Details Cationic polymerization of cyclic ethers Cationic polymerization of cyclic ethers

1989-03-14

1991-01-29

Nielsen, Earl

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

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

528409, 528410, 528411, 528412, 528414, 528416, 528417, 568617, 568618, C08G 6510, C08G 6518, C08G 6520

Patent

active

049887971

ABSTRACT:
Cyclic ethers having 4 and 5 member rings are polymerized with a alcohol initiator and an acid catalyst. The acid catalyst is used at a molar ratio relative to hydroxyl groups of the alcohol initiator of between about 0.05:1 and about 0.5:1.

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