Electrical cable having sheath layers bonded with adhesive
    3.
    发明授权
    Electrical cable having sheath layers bonded with adhesive 失效
    带有粘合剂的电缆的电缆

    公开(公告)号:US3697670A

    公开(公告)日:1972-10-10

    申请号:US3697670D

    申请日:1971-12-02

    Inventor: MITACEK BILL

    CPC classification number: H01B7/2825

    Abstract: In an electrical cable having at least one polyolefin sheath layer and an aluminum sheath layer, the polyolefin layer is bonded to the aluminum layer with an adhesive material of 50 to 90 weight percent amorphous polypropylene and 50 to 10 weight percent mineral lubricating oil.

    Quench hardening of metals with improved quenching medium additive
    4.
    发明授权
    Quench hardening of metals with improved quenching medium additive 失效
    用改进的淬火介质添加剂淬火金属

    公开(公告)号:US3607459A

    公开(公告)日:1971-09-21

    申请号:US3607459D

    申请日:1968-10-09

    Inventor: MITACEK BILL

    CPC classification number: C21D1/58

    Abstract: Metals are quench hardened by being heated above the critical temperature and then immersed in a quenching medium containing a calcium petroleum sulfonate having a base number less than 15 and prepared by sulfonating one part by weight of a propanefractionated, solvent-extracted, dewaxed intermediate base bright stock having a viscosity of about 200 to 230 SUS at 210* F. and a viscosity index of at least about 85 with a quantity of sulfonating agent consisting essentially of liquid SO3 dissolved in an inorganic solvent equivalent to from about 0.1 to about 1 part by weight of 20 percent fuming sulfuric acid, at a temperature in the range of about 50* to 200* F.; neutralizing the resulting reaction mixture with at least the minimum required for neutralization of an aqueous slurry of calcium hydroxide; heating the resulting mixture in the liquid phase at a temperature of about 360* to 400* F. for about 10 minutes; and removing water and inorganic solids therefrom to obtain calcium petroleum sulfonate product containing not more than 6 weight percent sulfated ash. This calcium petroleum sulfonate product can be used directly to supply the calcium petroleum sulfonate or the calcium petroleum sulfonate can be extracted from this product and utilized in a more purified form.

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