| 摘要 |
The invention concerns the use of copolymers comprising at least polyoxyalkylene polyamide functions, as gelling agents for compounds with low polarity or ionic surfactants. Said sequence copolymers comprise the following units: -X-(R<1>)m-(OA)n-X- (I), and -[NH-R<2>-NHCO-R'<2>-CO]r (IIa), and/or -[NH-R<3>-CO]s- (IIb), and -OC-R<4>-CO- (III) units wherein R<1>, R'<1>, R<2>, R'<2>, R<3> and R<4> represent a hydrocarbon radical; X corresponds to the terminal function of said unit after reaction with an amine function or carboxylic acid; OA, an oxyethylene, oxypropylene and/or oxybutylene radical; m is equal to 0 or 1; n is an integer ranging between 4 and 800; r and s are such that the number of amide bonds ranges between 1 and 15, for each unit (I); the mol ratio of the number of units (III)/number of units (I) ranges between 0.5/1 and 1.4/1 and the molar mass in number of the copolymer is less than 10000 g/mol. |
