Cold flow improvers for fuel oils of vegetable or animal origin

    公开(公告)号:US20050108924A1

    公开(公告)日:2005-05-26

    申请号:US10972667

    申请日:2004-10-25

    Applicant: Matthias Krull

    Inventor: Matthias Krull

    Abstract: The invention provides a fuel oil composition comprising a fuel oil of animal or vegetable origin and an additive comprising A) at least one copolymer of ethylene and 8-21 mol % of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) at least one comb polymer containing structural units having C8-C16-alkyl radicals, the structural units being selected from C8-C16-alkyl (meth)acrylates, C8-C16-alkyl vinyl esters, C8-C16-alkyl vinyl ethers, C8-C16-alkyl (meth)acrylamides, C8-C16-alkyl allyl ethers and C8-C16-diketenes, where the sum R R = m 1 · ∑ i ⁢ w 1 ⁢ i · n 1 ⁢ i + m 2 · ∑ j ⁢ w 2 ⁢ j · n 2 ⁢ j + … + m g · ∑ p ⁢ w gp · n gp is the molar average of the carbon chain length distributions in the alkyl radicals of the monomers B) is from 11.0 to 14.0, where m1, m2, . . . mg are the molar fractions of the abovementioned monomers B) in the polymer and the sum of the molar fractions m1 to m9=1, w1i, w1j, w2i, w2j . . . wgp are the proportions by weight of the individual chain lengths i, j, . . . p of the alkyl radicals of the different monomers B) 1 to g, and n1i, n1j, n2i, n2j . . . ngp are the chain lengths of the alkyl radicals i, j, . . . p of the monomers B) 1 to g.

    Petroleum middle distillate composition containing a substance for limiting the paraffin sedimentation rate
    109.
    发明授权
    Petroleum middle distillate composition containing a substance for limiting the paraffin sedimentation rate 失效
    石油中间馏分组合物含有限制石蜡沉淀速率的物质

    公开(公告)号:US06860908B2

    公开(公告)日:2005-03-01

    申请号:US09963040

    申请日:2001-09-26

    Abstract: A middle petroleum distillate composition containing a major proportion of middle petroleum distillate and a minor proportion of an additive in a sufficient amount to limit the settling speed of paraffins contained in said middle distillate. Said additive consists of a product resulting from a reaction between at least one aliphatic dicarboxylic compound and at least one primary amine functional compound of general formula (I), wherein R1 is a monovalent saturated aliphatic radical, Z is selected from —NR′— groupings in which R′ is a hydrogen atom or a monovalent saturated aliphatic radical, n is an integer between 2 and 4, and m is an integer between 1 and 4; said primary amine functional compound being used in a ratio of 0.3-0.8 mols per mol of said dicarboxylic compound.

    Abstract translation: 中间石油馏出物组合物,其中含有主要比例的中间石油馏出物和少量的添加剂,其用量足以限制所述中间馏分中所含的链烷烃的沉降速度。 所述添加剂由至少一种脂族二羧化合物与至少一种通式(I)的伯胺官能化合物之间的反应产生的产物组成,其中R 1是一价饱和脂族基团,Z选自-NR ' - 其中R'是氢原子或一价饱和脂族基团的基团,n是2和4之间的整数,m是1和4之间的整数; 所述伯胺官能化合物的使用比例为每摩尔所述二羧酸化合物为0.3-0.8摩尔。

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