Ethynyl terminated ester oligomers and polymers therefrom

Details Ethynyl terminated ester oligomers and polymers therefrom Ethynyl terminated ester oligomers and polymers therefrom

1984-05-23

1986-01-28

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...

5253285, 5253289, 5253295, 525437, 525445, 526285, 528173, 528176, 528182, 528192, 528272, 528274, 528293, 528294, 528304, 528306, 528308, C08G 6376

Patent

active

045672407

ABSTRACT:
A new class of ethynyl-terminated oligomers and the process for preparing same are disclosed. Upon the application of heat, with or without a catalyst, the ethynyl groups react to provide crosslinking and chain extension to increase the polymer use temperature and improve the polymer solvent resistance. These improved polyesters are potentially useful in packaging, magnetic tapes, capacitors, industrial belting, protective coatings, structural adhesives and composite matrices.

REFERENCES:
patent: 3666023 (1972-05-01), Kehr et al.
patent: 4221895 (1980-09-01), Woo
patent: 4440945 (1984-04-01), Conciatori et al.

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