Complete ether capping of oligomeric polyphenols

Details Complete ether capping of oligomeric polyphenols Complete ether capping of oligomeric polyphenols

1987-11-30

1989-10-03

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528219, 528392, 528396, 528397, 525132, 525502, 525504, 525505, 525534, 525539, 525934, 524115, 524155, 524430, C08G 6338

Patent

active

048718319

ABSTRACT:
A method is presented to prepare totally functionalized ether-capped oligomeric polyphenols without molecular weight fractionation. The products generally are very low in inorganic salts and are characterized by the absence of volatiles leading to void formation in their subsequent curing. The success of the method rests upon conducting the reaction under totally homogeneous conditions throughout.

REFERENCES:
patent: 3625874 (1971-12-01), Cottman et al.
patent: 4116936 (1978-09-01), Steiner
patent: 4707558 (1987-11-01), Wang et al.

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