C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 69/48 (2006.01) C08G 69/10 (2006.01) C08G 73/06 (2006.01) C08G 73/10 (2006.01)
Patent
CA 2208708
There is disclosed novel cross-linked polyanhydroaspartic acid which is the product of the reaction of a polysuccinimide with triaminononoane (TAN). Depending upon the amount a cross-linking agent employed compositions of varying degrees of cross-linking are produced. Mole ratio of polysuccinimide to TAN such as from 3 to 1 provides a water insoluble material while a mole ratio of 102 to 1 provides a water soluble material at 28 % by weight. Such compounds find utility as thickeners, deflocculants, flocculants and water absorbers.
Cette invention concerne un nouvel acide polyanhydroaspartique réticulé, lequel est le produit de la réaction entre un polysuccinimide et du triaminononane (TAN). Des compositions possédant divers degrés de réticulation peuvent ainsi être produites en fonction du volume d'agent de réticulation employé. Lorsque la proportion en moles de polysuccinimide par rapport au TAN est de 3 pour 1, on obtient un matériau insoluble dans l'eau. Si cette proportion en moles est de 102 pour 1, on obtient alors un matériau soluble dans l'eau à concurrence de 28 % de son poids. Ces composés peuvent être utiles en tant qu'agents épaississants, défloculants, floculants et agents d'absorption de l'eau.
Mcfadden Fincham
Monsanto Company
Solutia Inc.
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