Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-05-04
1992-07-07
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
525420, 528338, 528339, 528340, 528341, 528343, 528347, 528349, 564134, 564139, 564144, 564156, C08G 6926, C08G 6940, C07C10324
Patent
active
051284413
ABSTRACT:
A block polyamido primary amine condensation product prepared by reacting a defined polyoxyalkylene polyamine having terminal primary amine groups with an amount of a defined dicarboxylic acid or an anhydride or a C.sub.1 to C.sub.4 alkyl ester thereof, sufficient to react one mole of the dicarboxylic acid reactant with each primary amine group of the polyoxyalkylene polyamine to thereby prepare an intermediate condensation reaction product containing terminal carboxyl groups, and reacting one mole of a defined organic di-primary amine with each terminal carboxyl group of the said intermediate condensation reaction product to thereby provide, as the principal product of the reaction a block polyamido primary amine condensation product.
REFERENCES:
patent: Re31522 (1984-02-01), Rieder
patent: 4374741 (1983-02-01), Rieder
patent: 5053484 (1991-10-01), Speranza et al.
Lin Jiang-Jen
Speranza George P.
Lilling Herbert J.
Park Jack H.
Priem Kenneth R.
Ries Carl G.
Texaco Chemical Company
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