Friction reduction
    113.
    发明授权
    Friction reduction 失效
    摩擦减少

    公开(公告)号:US3884252A

    公开(公告)日:1975-05-20

    申请号:US37178173

    申请日:1973-06-20

    Applicant: SHELL OIL CO

    Inventor: KRUKA VITOLD R

    Abstract: A process for reducing oxidative degradation and cold flow of polymer crumb by immersing the crumb in a non-solvent such as water and/or dusting the crumb with a powder such as calcium carbonate and 2,6 di-t-butylparacresol, 4,4''-methylene-bis-(2,6 di-t-butylphenol) or other antioxidants. A process for reducing fluid flow friction loss in pipeline transmission of a hydrocarbon fluid by providing a continuous source of dissolved polymer therein by injecting polymer crumb or a slurry of polymer crumb and water into the hydrocarbon fluid, whereby the crumb gradually and continuously dissolves during transmission of the crumb through the pipeline.

    Abstract translation: 通过将碎屑浸入非溶剂如水中和/或用粉末如粉末如碳酸钙和2,6-二叔丁基对羟基苯甲酸酯,4,4,4-三甲基苯酚 '亚甲基双 - (2,6-二叔丁基苯酚)或其他抗氧化剂。

    Gasoline anti-icing
    115.
    发明授权

    公开(公告)号:US3589877A

    公开(公告)日:1971-06-29

    申请号:US3589877D

    申请日:1967-04-07

    Applicant: ETHYL CORP

    CPC classification number: C10L1/143 C10L1/224 C10L1/232 C10L1/28 C10L1/285

    Abstract: GASOLINE CONTAINING AS AN IMPROVED ANTI-ICING ADDITIVE, THE COMBINATION OF A SUBSTITUTED TETRAHYDROPYRIMIDINE, AN AMIDE OR MIXTURES THEREOF AND AN ORGANIC SILICON COMPOUND. EXAMPLES OF THE TETRAHYDROPYRIMIDINE AND AMIDE ARE 1-OCTADECENYL-2-METHYL-1,4,5,6-TETRAHYDROPYRIMIDINE AND N-(I-AMINOETHYL)-N-HEPTADECENYLACETAMIDE. EXAMPLES OF SUITABLE ORGANIC SILICON COMPOUNDS ARE POLYHYDROCARBYLSILOZANES AND ALKYL SILICATES.

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