Polyurethanes and diisocyanato sulfone and diamino sulfone intermediates
    5.
    发明授权
    Polyurethanes and diisocyanato sulfone and diamino sulfone intermediates 失效
    聚氨酯和二硫代氨基磺酸和二氨基磺酸中间体

    公开(公告)号:US3801548A

    公开(公告)日:1974-04-02

    申请号:US3801548D

    申请日:1972-04-14

    Inventor: WILLIAMS R

    CPC classification number: C08G18/775

    Abstract: POLYRURETHANE PREPOLYMER AND POLYURETHANE COATINGS ARE PREPARED BY REACTING UNDR PREPOLYMER FORMING CONDITIONS A NEW DIISOCYANTO SULFONE WITH A POLYOL. IMPORTANTLY, THE DIISOCYANATO SULFONE WHICH ARE USED AS STARTING MATERIAL HAVE A RELATIVELY LOW TOXIITY BECAUSE THEY ARE POSSESSED OF RELATIVELY LOW VOLATILITY

    Dihydrocarbyltin bis(hydrocarbyloxy hydrocarbyl mercaptide)
    6.
    发明授权
    Dihydrocarbyltin bis(hydrocarbyloxy hydrocarbyl mercaptide) 失效
    二氢化碳二烯(二氢化合物)

    公开(公告)号:US3793356A

    公开(公告)日:1974-02-19

    申请号:US3793356D

    申请日:1972-04-26

    Inventor: WILLIAMS R

    CPC classification number: C08K5/58 C07F7/2268

    Abstract: ORGANOTIN MERCAPTIDES HAVING THE FORMULA

    R2SN(SR''OR")2,

    WHEREIN EACH R AND EACH R2 IS INDIVIDUALLY SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND EACH R'' IS INDIVIDUALLY SELECTED FROM THE GROUP CONSISTING OF DIVALENT HYDROCARBON RADICALS. THE TITLE COMPOUNDS ARE USEFUL STABILIZING AGENTS FOR POLYMERIC MATERIALS.

    (alkylthio)alkyl mercaptans as gas odorants
    7.
    发明授权
    (alkylthio)alkyl mercaptans as gas odorants 失效
    (ALKYLTHIO)ALKYL MERCAPTANS作为气体

    公开(公告)号:US3752659A

    公开(公告)日:1973-08-14

    申请号:US3752659D

    申请日:1971-12-10

    Inventor: CROUCH W WILLIAMS R

    CPC classification number: C10L3/006

    Abstract: A GAS ODORANT COMPRISING AN (ALKYLTHIO)ALKYL MERCAPTAN, SUITABLE AS A WARNING AGENT FOR GASEOUS HYDROCARBON FUELS. IN ONE EMBODIMENT THE (ALKYLTHIO)ALKYL MERCAPTAN ENHANCES THE EFFECT OF CONVENTIONAL ODORANT MIXTURES.

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