Crystalline aluminates as lubricant additives
    138.
    发明公开
    Crystalline aluminates as lubricant additives 失效
    Kristalline Aluminate als Schmiermittelzusatz。

    公开(公告)号:EP0169357A2

    公开(公告)日:1986-01-29

    申请号:EP85107141.5

    申请日:1985-06-10

    Abstract: Crystalline aluminates of the formula:

    I. (LiA x ) y ·2Al(OH) 3 ·nH 2 O
    II. Li(R) v r 2Al(OH) 3 ·nH 2 O, or
    III. M m (R) v r (D) w z 2Al(OH) 3 ·nH 2 O

    wherein A is one or more anions and/or negative-valence radicals or mixtures thereof;
    wherein, in formula I, x is a quantity of A ions or radicals sufficient to substantially satisfy the valence requirements of Li;
    wherein n is zero or the number of waters of hydration;
    wherein y is a numerical value at least sufficient to maintain the crystalline structure;
    wherein R is a monocarboxylic acid or dicarboxylic acid of C 6 -C 22 , including those which are OH - substituted;
    wherein r is greater than zero and represents the number of R ions in the molecule;
    wherein v is the valence of R, being monovalent or divalent;
    wherein M is divalent Zn or Ca cations;
    wherein D represents inorganic anions of valence 1-3, represented by w;
    wherein z is equal to or greater than zero and represents the number of D anions;
    wherein, in formula II, vr represents an amount of R anions to substantially satisfy the valence requirements of Li;
    wherein, in formula III, r>z and (vr + wz) represents an amount of combined anions, R and A, to substantially satisfy the valence requirements of M;
    with m representing the number of divalent M cations and having a numerical value in the range of 1 to 4.
    are found to improve the coefficient of friction and antiwear properties of lubrication fluids subjected to shearing, rubbing, or grinding forces at elevated pressure. Also, useful compositions are prepared by incorporating into organic materials, crystalline lithium aluminates of formula 1.

    Abstract translation: 结晶铝酸盐,其结构式如下:I.(LiAx)y.2Al(OH)3·nH2O II。 Li(R)v_r.2Al(OH)3·nH 2 O或III。 (D)w_z2Al(OH)3·nH 2 O其中A是一个或多个阴离子和/或负价键或其混合物; 其中,在式I中,x是足以基本上满足Li的化合价要求的A离子或自由基的量; 其中n为0或水合水的数量; 其中y是至少足以保持晶体结构的数值; 其中R是C 6 -C 22的单羧酸或二羧酸,包括被OH取代的那些; 其中r大于零并且表示分子中的R离子的数目; 其中v是R的价数,是一价或二价; 其中M是二价Zn或Ca阳离子; 其中D表示以w表示的价数1-3的无机阴离子; 其中z等于或大于零并且表示D阴离子的数目; 其中,在式II中,vr表示基本上满足Li的化合价要求的R阴离子的量; 其中,在式III中,r> z和(vr + wz)表示组合的阴离子R和A的量,以基本上满足M的化合价要求; 其中m表示二价M阳离子的数目并且具有在1至4范围内的数值,可以改善在升高的压力下经受剪切,摩擦或研磨力的润滑流体的摩擦系数和抗磨损性能。 而且,有用的组合物通过将有机材料掺入到式I的结晶的铝酸锂中来制备。

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