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    • 7. 发明授权
    • Tertiary amide terminated polyamides and uses thereof
    • 叔胺封端的聚酰胺及其用途
    • US06268466B1
    • 2001-07-31
    • US09225889
    • 1999-01-04
    • Richard C. MacQueenMark S. Pavlin
    • Richard C. MacQueenMark S. Pavlin
    • C08G6902
    • A61Q19/00A61K8/0229A61K8/042A61K8/31A61K8/375A61K8/88A61K2800/52A61Q1/06A61Q15/00C08G69/34C08G69/48
    • A low molecular weight, tertiary amide terminated polyamide may be blended with a liquid hydrocarbon to form a transparent composition having gel consistency. The tertiary amide terminated polyamide may be prepared by reacting “x” equivalents of dicarboxylic acid wherein at least 50% of those equivalents are from polymerized fatty acid, “y” equivalents of diamine such as ethylene diamine, and “z” equivalents of a monofunctional reactant having a secondary amine group as the only reactive functionality. The stoichiometry of the reaction mixture is preferably such that 0.9≦{x/(y+z)}≦1.1 and 0.1≦{z/(y+z)}≦0.7. The gel contains about 5-50% tertiary amide terminated polyamide, with the remainder preferably being pure hydrocarbon. The gels are useful in formulating personal care products and other articles wherein some degree of gel-like or self-supporting consistency is desired.
    • 可以将低分子量叔胺封端的聚酰胺与液体烃混合以形成具有凝胶稠度的透明组合物。 叔酰胺封端的聚酰胺可以通过使“x”当量的二羧酸反应,其中至少50%的那些当量来自聚合的脂肪酸,“y”当量的二胺例如乙二胺,“z”当量的单官能 具有仲胺基团的反应物作为唯一的反应性官能团。 反应混合物的化学计量优选为0.9 <= {x /(y + z)} <= 1.1和0.1 <= {z /(y + z)} <= 0.7。 凝胶含有约5-50%叔酰胺封端的聚酰胺,其余的优选为纯烃。 凝胶可用于配制个人护理产品和其它需要一定程度的凝胶状或自支撑稠度的制品。