Sulfone-ester polymers containing pendent ethynyl groups

Details Sulfone-ester polymers containing pendent ethynyl groups Sulfone-ester polymers containing pendent ethynyl groups

1984-05-23

1986-05-06

Lee, Lester L.

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

Synthetic resins

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

260544P, 525534, 526285, 528171, 528173, 528174, 528176, 528192, 528206, 528209, C08G 6366, C08G 7523

Patent

active

045873127

ABSTRACT:
Sulfone-ester polymers containing pendent ethynyl groups and a direct and multi-step process for preparing same are disclosed. The multi-step process involves the conversion of a pendent bromo group to the ethynyl group while the direct route involves reacting hydroxy-terminated sulfone oligomer or polymers with a stoichiometric amount of 5-(4-ethynylphenoxy)isophthaloyl chloride. The 5-(4-ethynylphenoxy)isophthaloyl chloride and process for preparing same are also disclosed.

REFERENCES:
patent: 3935167 (1976-01-01), Marvel et al.
patent: 4108926 (1978-08-01), Arnold et al.
patent: 4226800 (1980-10-01), Picklesimer

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