Rapid preparation of polyetheramide from bis-oxazoline, polyphen

Details Rapid preparation of polyetheramide from bis-oxazoline, polyphen Rapid preparation of polyetheramide from bis-oxazoline, polyphen

1987-06-03

1988-05-24

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528129, 528138, 528139, 528141, 528211, C08G 810, C08G 8500, C08G 6900

Patent

active

047467193

ABSTRACT:
A process for preparing copolymers of a mixture of a bis-oxazoline and a polyphenolic compound at improved rate of copolymerization by the inclusion of a catalytic amount of a carbonium ion salt of the formula Ph.sub.3 CX wherein Ph represents a phenyl group and X represents BF.sub.4, PF.sub.6, SbF.sub.6, AsF.sub.6, BPh.sub.4 or ClO.sub.4, is described.

REFERENCES:
patent: 4430491 (1984-02-01), Culbertson et al.
patent: 4613662 (1986-09-01), Goel
patent: 4699970 (1987-10-01), Tiba et al.

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