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

1979-05-22

1980-12-16

Welsh, Maurice J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

528354, 564163, 564166, 564167, C07C10322

Patent

active

042397006

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: 3712927 (1973-01-01), Howe et al.
patent: 3789073 (1974-01-01), Narayanan et al.
patent: 3876569 (1975-04-01), Priest et al.
patent: 4010189 (1977-03-01), Smith
patent: 4049716 (1977-09-01), Collet

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