METHOD OF SEPARATING COMPONENTS IN A SAMPLE USING SILANE-TREATED SILICA FILTER MEDIA

    公开(公告)号:CA2500466A1

    公开(公告)日:2004-05-21

    申请号:CA2500466

    申请日:2003-10-01

    Abstract: The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The methodcomprises the steps of: (a) filtering a sample through silica filter media whose surfacesilanol groups have reacted with one or more silanes, and (b) simultaneously capturingparticulates and binding a soluble component to the silica filter media. The boundsoluble component of interest is subsequently eluted from the silica filter media. In oneembodiment of the invention, unwanted soluble materials are captured by the treatedsilica filt er media and desired component of interest is recovered from the flow-through. In another embodiment of the invention, different components of interest are recoveredfrom both the eluate and the flow-through. Preferred treated silica filter media aresilane-treated rice hull ash or diatomaceous earth with functional quarternary ammoniumgroup or functional sulphonate group. Particulates suitable for the present invention, forexample, are microorganisms.

    23.
    发明专利
    未知

    公开(公告)号:DE69023978D1

    公开(公告)日:1996-01-18

    申请号:DE69023978

    申请日:1990-08-10

    Applicant: DOW CORNING

    Inventor: REVIS ANTHONY

    Abstract: A process of curing and crosslinking methylhydrosiloxanes by contacting and forming a mixture of an allyl ester with at least one methylhydrosiloxane in the presence of a Group VIII metal catalyst and heating the mixture of the allyl ester, the methylhydrosiloxane and the Group VIII metal catalyst, in the presence of ambient moisture until the methylhydrosiloxane becomes cured and crosslinked.

    24.
    发明专利
    未知

    公开(公告)号:DE69007880T2

    公开(公告)日:1994-11-03

    申请号:DE69007880

    申请日:1990-06-28

    Applicant: DOW CORNING

    Abstract: A method of treating textiles in order to increase the water absorptivity of the textiles involving contacting the textiles with an effective amount of a dioxolane functional organosilicon compound. Representative of the dioxolane or ketal functional organosilicon compounds employed are sym(2,2-dimethyl-4-methyloylpropyl-1,3-dioxolane) disiloxane and sym(2,2-dimethyl-4-methyloylpropyl-1,3-dioxolane) polydimethylsiloxane.

    25.
    发明专利
    未知

    公开(公告)号:ES2055331T3

    公开(公告)日:1994-08-16

    申请号:ES90307085

    申请日:1990-06-28

    Applicant: DOW CORNING

    Abstract: A method of treating textiles in order to increase the water absorptivity of the textiles involving contacting the textiles with an effective amount of a dioxolane functional organosilicon compound. Representative of the dioxolane or ketal functional organosilicon compounds employed are sym(2,2-dimethyl-4-methyloylpropyl-1,3-dioxolane) disiloxane and sym(2,2-dimethyl-4-methyloylpropyl-1,3-dioxolane) polydimethylsiloxane.

    SILICONE SEALANTS
    26.
    发明专利

    公开(公告)号:AU7621991A

    公开(公告)日:1991-11-07

    申请号:AU7621991

    申请日:1991-04-26

    Applicant: DOW CORNING

    Inventor: REVIS ANTHONY

    Abstract: A silicone sealant prepared by curing and cross-linking methylhydrosiloxanes by contacting and forming a mixture of an allyl amide or an allyl ester with at least one methylhydrosiloxane in the presence of a Group VIII metal catalyst and heating the mixture of the allyl amide, the methylhydrosiloxane, a filler and the Group VIII metal catalyst, in the presence of ambient moisture until the methylhydrosiloxane becomes cured and cross-linked.

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