Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1986-04-17
1987-10-20
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
C08G 6512
Patent
active
047015209
ABSTRACT:
This invention discloses a unique catalyst for the simultaneous sterospecific preparation of high and low molecular weight isotactic poly 1,2-butylene oxide and a method of preparation of that catalyst from butylene oxide monomer and iron chloride.
REFERENCES:
patent: 2706181 (1955-04-01), Pruitt et al.
patent: 2706189 (1955-04-01), Pruitt et al.
patent: 2811491 (1957-10-01), Pruitt et al.
patent: 2873258 (1959-02-01), Borkovec
Gunn Donald
Nielsen Earl
The Dow Chemical Company
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