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    • 5. 发明授权
    • Polyoxyalkylene urethane and fuel composition containing same
    • 聚氧化烯氨基甲酸酯和含有它们的燃料组合物
    • US6001142A
    • 1999-12-14
    • US187494
    • 1998-11-06
    • Joseph M. RussoThomas F. DeRosaBenjamin J. Kaufman
    • Joseph M. RussoThomas F. DeRosaBenjamin J. Kaufman
    • C08G65/26C08G65/325C08G65/333C08G71/04C10L1/238C10L10/00C10L1/22
    • C10L1/238C08G65/2612C08G65/3255C08G65/33344C08G71/04C10L10/04
    • A hydrocarbyl polyoxyalkylene urethane of the general formula ##STR1## wherein R.sup.1 is an alkyl, an alicyclic or an alkylalicyclic radical having from about 4 to about 30 carbon atoms or an alkylaryl where the alkyl group is from about 4 to about 30 carbon atoms; x is an integer from 0 to about 5, y is an integer from 1 to about 49, z is an integer from 1 to about 49 and the sum of x+y+z is equal to 3 to about 50; R.sup.2 and R.sup.3 each is different and is an alkyl group of from 1 to 4 carbon atoms and each oxyalkylene radical can be any combination of repeating oxyalkylene units to form block or random copolymers; R.sup.4 is the same as R.sup.2 or R.sup.3 ; R.sup.5 is hydrogen or ##STR2## where R.sup.7 is hydrogen or an alkyl group of from 1 to 5 carbon atoms and R.sup.6 is an divalent alkylene radical of 1 to about 12 carbon atoms which is unsubstituted or substituted with at least one hydrocarbyl substituent of from 1 to about 50 carbon atoms and an internal combustion engine fuel composition containing same are provided.
    • 具有以下通式的烃基聚氧化烯氨基甲酸酯其中R 1是具有约4至约30个碳原子的烷基,脂环族或烷基脂环基团或其中烷基为约4至约30个碳原子的烷基芳基; x是0至约5的整数,y是1至约49的整数,z是1至约49的整数,x + y + z的和等于3至约50; R2和R3各自不同,为1至4个碳原子的烷基,每个氧化烯基可以是重复的氧化烯单元以形成嵌段或无规共聚物的任何组合; R4与R2或R3相同; R 5是氢或其中R 7是氢或1至5个碳原子的烷基,R 6是1至约12个碳原子的二价亚烷基,其未被取代或被至少一个1至约50个烃基取代基取代 碳原子和含有其的内燃机燃料组合物。