Hydrocarbon-terminated polyether-polyamide block copolymers...

C - Chemistry – Metallurgy – 08 – G

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C08G 69/40 (2006.01) A61K 8/86 (2006.01) A61K 8/88 (2006.01) A61K 8/90 (2006.01) A61Q 1/00 (2006.01) A61Q 15/00 (2006.01) C08G 69/26 (2006.01) C08J 3/075 (2006.01) C08L 77/06 (2006.01)

Patent

CA 2435428

A block copolymer of the formula hydrocarbon-polyether-polyamide-polyether- hydrocarbon is described. The copolymer may be prepared by reacting together reactants that include dimer acid, diamine, and a polyether having both hydrocarbon termination and termination selected from one of amine, hydroxyl and carboxyl. The copolymer may be combined with a solvent to form a gel, where the gel may be transparent and may be incorporated into household and consumer products including antiperspirants.

La présente invention concerne un copolymère séquencé de formule hydrocarbure-polyéther-polyamide-polyéther-hydrocarbure. On peut préparer ledit copolymère en faisant réagir entre eux les réactifs qui comprennent de l'acide dimère, de la diamine et un polyéther possédant à la fois une terminaison hydrocarbure et une terminaison choisie parmi une terminaison d'amine, d'hydroxyle et de carboxyle. Ledit copolymère peut être combiné à un solvant de manière à former un gel, le gel pouvant être transparent et pouvant être incorporé dans des produits ménagers et des produits de consommation y compris dans les produits antisudorifiques.

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