Method for preparing reactive triazine-capped aromatic polymers,

Details Method for preparing reactive triazine-capped aromatic polymers, Method for preparing reactive triazine-capped aromatic polymers,

1992-09-08

1993-11-23

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253333, 5253336, 525375, 525396, C08G 6532

Patent

active

052644960

ABSTRACT:
Hydroxy group-containing polymers, particularly polyphenylene ethers, are capped by reaction with a chlorotriazine in the presence of a substantially inert organic liquid such as toluene, water, a phase transfer catalyst and a tertiary amine from a specific class, preferably a trialkylamine such as triethylamine or dimethyl-n-butylamine. The reaction proceeds rapidly and in good yield.

REFERENCES:
patent: 4927894 (1990-05-01), Brown
patent: 5034527 (1991-07-01), Brown et al.
patent: 5115043 (1992-05-01), Yates, III et al.

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