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34 条记录 (耗时 0.019 秒)

    Method for removal of phenolic materials from mixtures thereof
    4.
    发明授权
    Method for removal of phenolic materials from mixtures thereof 失效
    从其混合物中除去酚类物质的方法

    公开(公告)号：US4581131A

    公开(公告)日：1986-04-08

    申请号：US674433

    申请日：1984-11-23

    申请人： Leslie R. Rudnick

    发明人： Leslie R. Rudnick

    IPC分类号： C10G25/00

    CPC分类号： C10G25/003

    摘要： Phenolic compounds are removed from a hydrocarbon oil by contacting the oil with manganese nodules at suitable conditions of contact time, temperature, and pressure.

    摘要翻译： 通过在合适的接触时间，温度和压力条件下使油与锰结核接触，从烃油中除去酚类化合物。

    Synthetic polyolefin lubricant oil
    8.
    发明授权
    Synthetic polyolefin lubricant oil 失效
    合成聚烯烃润滑油

    公开(公告)号：US5171908A

    公开(公告)日：1992-12-15

    申请号：US794095

    申请日：1991-11-18

    申请人： Leslie R. Rudnick

    发明人： Leslie R. Rudnick

    IPC分类号： C10G69/12

    CPC分类号： C10G69/126

    摘要： The invention is directed to method of making a thermally and oxidatively stable lubricating oil having a high viscosity index and a low pour point by the thermal polymerization of 1-olefins containing 8 to 10 carbon atoms, the preferred 1-olefins are 1-decanes. The polymerization is conducted at temperatures ranging from 280.degree. C. to 350.degree. C. and low pressures, of less than about 280 psig, in a reactor which is free of catalytic material. Thereafter, the polyalphaolefin is hydrotreated over a nickel catalyst, preferably nickel on Kieselguhr. In an improved process the polyalphaolefin is separated from a low molecular weight product by distillation. The low molecular product contains unreacted 1-olefins which are recycled to the thermal polymerization zone to produce more of the lubricant base stock. The remaining lower molecular weight olefinic materials which include mixed olefins, paraffins, cracked olefins and olefin dimers are routed to a polymerization zone to make a second lubricant base stock.

    摘要翻译： 本发明涉及通过含有8〜10个碳原子的1-烯烃的热聚合制备具有高粘度指数和低倾点的热和氧化稳定的润滑油的方法，优选的1-烯烃是1-癸烷。 在不含催化材料的反应器中聚合在280℃至350℃的温度和小于约280psig的低压下进行。 此后，聚α-烯烃在镍催化剂上加氢处理，优选在硅藻土上镍。 在改进的方法中，通过蒸馏将聚α-烯烃与低分子量产物分离。 低分子产物含有未反应的1-烯烃，其被再循环到热聚合区以产生更多的润滑剂基料。 包括混合烯烃，链烷烃，裂化烯烃和烯烃二聚体的剩余的较低分子量烯烃材料被引导到聚合区域以制备第二润滑剂基础油料。

    Vulcanizable liquid compositions
    9.
    发明授权
    Vulcanizable liquid compositions 失效
    VULCANIZABLE液体组合物

    公开(公告)号：US5149895A

    公开(公告)日：1992-09-22

    申请号：US466135

    申请日：1990-01-16

    申请人： Thomas S. Coolbaugh ,  Frederick C. Loveless ,  Demetreos N. Matthews ,  Leslie R. Rudnick

    发明人： Thomas S. Coolbaugh ,  Frederick C. Loveless ,  Demetreos N. Matthews ,  Leslie R. Rudnick

    IPC分类号： C08F8/00 ,  C08F8/04 ,  C08F8/08 ,  C08F236/04 ,  C08F297/02

    CPC分类号： C08F297/02 ,  C08F236/04 ,  C08F8/00 ,  C08F8/04 ,  C08F8/08

    摘要： There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjugated diene, different from that used to polymerize the block I, of at least four (4) carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks is unhydrogenated and therefore retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from a minor proportion of at least one aryl-substituted olefin, such as styrene, and a major proportion of at least one conjugated diene used to polymerize the block I, the second middle polymer block of at least one diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of their original unsaturation to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random linear and star-branched block and random copolymers made from the same monomers at the linear block copolymers.Also disclosed are methods of producing the polymers and selectively hydrogenating the aforementioned polymerized dienes.