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1.发明公开IMPROVED LOW SEDIMENT PROCESS FOR FORMING BORATED DISPERSANT 失效用于生产BARIERTER分散剂改进的处理来降低SEDIMENTARFALL。
公开(公告)号：EP0674692A1
公开(公告)日：1995-10-04
申请号：EP94903651.0
申请日：1993-12-14
CPC分类号： C10M177/00 , C08F8/42 , C10M129/95 , C10M133/52 , C10M159/16 , C10M2201/087 , C10M2207/287 , C10M2207/288 , C10M2215/04 , C10M2215/042 , C10M2215/26 , C10M2217/042 , C10M2217/043 , C10M2217/046 , C10M2217/06 , C08F222/40
摘要： A low sediment process for forming a borated, oil soluble, polymer-substituted, nitrogen- or ester-containing lubricating oil additive. A polymer-substituted, nitrogen- or ester-containing additive in the presence of a solvent therefor, is contacted under boronating reaction conditions in a reaction zone with particulate boric acid. The boric acid has a particle size distribution in lubricating oil characterized by a Ζ value of not greater than about 450. The Ζ value is the ratio of said particles' total spherical volume divided by said particles' total spherical external surface area; i.e., Ζ = total spherical volume/total spherical surface area = Σi (4/3)Niπdi3/Σ¿i? Niπdi?2¿ wherein, for each of a plurality of distribution segments defining a particle size range; d¿i? is the average particle diameter for the ith distribution segment; Ni is the particle volume percent of the ith distribution segment; and the sum is taken over all the distribution segments.
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2.发明授权IMPROVED LOW SEDIMENT PROCESS FOR FORMING BORATED DISPERSANT 失效用于生产BARIERTER分散剂改进的处理来降低SEDIMENTARFALL
公开(公告)号：EP0674692B1
公开(公告)日：1997-05-21
申请号：EP94903651.1
申请日：1993-12-14
IPC分类号： C10M129/95 , C10M133/56 , C10M177/00
CPC分类号： C10M177/00 , C08F8/42 , C10M129/95 , C10M133/52 , C10M159/16 , C10M2201/087 , C10M2207/287 , C10M2207/288 , C10M2215/04 , C10M2215/042 , C10M2215/26 , C10M2217/042 , C10M2217/043 , C10M2217/046 , C10M2217/06 , C08F222/40
摘要： A low sediment process for forming a borated, oil soluble, polymer-substituted, nitrogen- or ester-containing lubricating oil additive. A polymer-substituted, nitrogen- or ester-containing additive in the presence of a solvent therefor, is contacted under boronating reaction conditions in a reaction zone with particulate boric acid. The boric acid has a particle size distribution in lubricating oil characterized by a Ζ value of not greater than about 450. The Ζ value is the ratio of said particles' total spherical volume divided by said particles' total spherical external surface area; i.e., Ζ = total spherical volume/total spherical surface area = Σi (4/3)Niπdi3/Σ¿i? Niπdi?2¿ wherein, for each of a plurality of distribution segments defining a particle size range; d¿i? is the average particle diameter for the ith distribution segment; Ni is the particle volume percent of the ith distribution segment; and the sum is taken over all the distribution segments.
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