Rock bit grease composition
    554.
    发明授权
    Rock bit grease composition 失效
    岩石润滑脂组成

    公开(公告)号:US5589443A

    公开(公告)日:1996-12-31

    申请号:US576617

    申请日:1995-12-21

    Abstract: A rock bit grease composition is prepared by combining synthetic polymer lubricant basestocks comprising a first ethylene-alphaolefin polymer having an average molecular weight in the range of from 3,500 to 4,000, and a polyisobutylene polymer to form a first master. A metal complex soap base thickener is prepared by combining a synthetic polymer lubricant basestocks comprising a second ethylene-alphaolefin having an average molecular weight in the range of from 400 to 800, with an alkali-metal or alkaline-earth metal hydroxide, and at least one fatty acid. A preferred fatty acid is a blend of a first fatty acid having in the range of from 15 to 20 carbon atoms, and a second fatty acid having in the range of from 5 to 12 carbon atoms. The first master and metal complex soap base thickener are mixed together in desired proportions. Boron nitride extreme pressure agent, molybdenum disulfide lubricant additive, and copper powder anti-seize agent are added to the mixture to produce a grease composition having a Brookfield viscosity at 120.degree. C. in the range of from 600 to 750 centipoise, that is not harmful to elastomeric rock bit seals and boots, and that is free of metal lubricant additives that are toxic to humans and/or hazardous to the environment.

    Abstract translation: 通过将包含平均分子量为3,500至4,000的第一乙烯-α-烯烃聚合物和聚异丁烯聚合物的合成聚合物润滑剂基础油料组合以形成第一母料来制备岩石润滑脂组合物。 金属络合物皂基增稠剂通过将包含平均分子量为400-800的第二乙烯-α-烯烃的合成聚合物润滑剂基础油与碱金属或碱土金属氢氧化物组合,并至少 一种脂肪酸。 优选的脂肪酸是具有15至20个碳原子的第一种脂肪酸和5至12个碳原子的第二种脂肪酸的共混物。 第一个主金属和金属络合物皂基增稠剂以所需的比例混合在一起。 将氮化硼极压剂,二硫化钼润滑剂添加剂和铜粉防止剂加入到混合物中以产生在120℃下的Brookfield粘度在600至750厘泊范围内的润滑脂组合物,即不是 对弹性岩石钻头密封件和靴子有害,并且没有对人类有毒和/或对环境有害的金属润滑剂添加剂。

    Anti-seizing lubricant composition, and method of making the same
    556.
    发明授权
    Anti-seizing lubricant composition, and method of making the same 失效
    防卡润滑剂组合物及其制备方法

    公开(公告)号:US5498351A

    公开(公告)日:1996-03-12

    申请号:US241521

    申请日:1994-05-12

    Inventor: Jerry P. Hefling

    Abstract: A a process for making a lubricious composition useful for preventing seizing of threaded fasteners in application to the threaded surface(s) thereof, comprising: (a) forming metal wire by drawing of metal source material through a wire drawing die; (b) lubricating the wire drawing die with an oil lubricant in forming the metal wire, to produce as a by-product thereof a metal flake/oil mixture; (c) separating the metal flake/oil mixture to recover a metal flake/oil suspension; and (d) formulating the metal flake/oil suspension in a metal flake-containing lubricant composition. The invention in another aspect relates to a product of such process. In a specific compositional aspect, the invention relates to a composition comprising an oil-based vehicle, 15%-35% by weight particulate metal (e.g., microscopic flake aluminum), based on the total weight of the composition, and 10%-30% by weight graphite, based on the total weight of the composition.

    Abstract translation: 一种用于制造润滑组合物的方法,其用于防止螺纹紧固件在其螺纹表面上的咬合,包括:(a)通过拉丝模拉制金属源材料来形成金属丝; (b)在形成金属线时用油润滑剂润滑拉丝模,以其副产物形成金属薄片/油混合物; (c)分离金属片/油混合物以回收金属片/油悬浮液; 和(d)在金属薄片润滑剂组合物中配制金属片/油悬浮液。 本发明另一方面涉及这种方法的产物。 在具体的组成方面,本发明涉及一种组合物,其包含基于组合物的总重量的基于15%-35%重量的颗粒状金属(例如微观薄片状铝)的油性载体和10%-30% 重量%的石墨,基于组合物的总重量。

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