Isatoic anhydride derivatives and use as chain-extenders

Details Isatoic anhydride derivatives and use as chain-extenders Isatoic anhydride derivatives and use as chain-extenders

1978-10-10

1980-03-18

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 62, 528 68, C08G 1832

Patent

active

041940709

ABSTRACT:
Covers certain aromatic-amine amides which comprise the reaction product of a bis-amino-n propyl ether and an isatoic anhydride of the formula: ##STR1## where R is selected from the group consisting of hydrogen, alkyl, nitro, halo, hydroxy, amino, and cyano, and n is a number of 1-4. Also covers the use of said compounds as chain-extenders in polyurethane compositions. Such chain-extenders provide for the production of polyurethane elastomers having improved tensile strength, tear strength and elongation properties.

REFERENCES:
patent: 3654364 (1972-04-01), Meckel et al.
patent: 3876569 (1975-04-01), Priest et al.
patent: 4049716 (1977-09-01), Collet

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