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    METHOD FOR CONVERTING REACTIVE GROUPS OF SI-C-BOUND GROUPS OF SILANES WHILE SIMULTANEOUSLY INCREASING THE PHYSICAL DISTANCE BETWEEN SAID GROUPS
    4.
    发明申请
    METHOD FOR CONVERTING REACTIVE GROUPS OF SI-C-BOUND GROUPS OF SILANES WHILE SIMULTANEOUSLY INCREASING THE PHYSICAL DISTANCE BETWEEN SAID GROUPS 审中-公开

    公开(公告)号：US20150274862A1

    公开(公告)日：2015-10-01

    申请号：US14434630

    申请日：2013-10-11

    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

    Inventor： Herbert Wolter ,  Somchith Nique

    IPC: C08F130/08 ,  C07F7/18 ,  C08F275/00

    CPC classification number: C08F130/08 ,  C07F7/1804 ,  C07F7/1892 ,  C07F9/113 ,  C08F275/00 ,  C08G77/388 ,  C08G77/392 ,  C08G77/395

    Abstract: The present invention relates to a method for converting reactive groups of Si—C bound groups of silanes or siloxanes while simultaneously increasing the physical distance between said groups, the Si—C bound groups having the grouping-AW(Z)a, wherein A represents a coupling group selected from —S—, —NH—and NR3, where R3 represents an unsubstituted or substituted hydrocarbon group or a (meth)acryl group, W is a substituted or unsubstituted hydrocarbon group, the chain of which may be interrupted by one or more groups of —S—, —O—, —NH—, —NR 3—, —C(O)O—, —NHC(O)—, —C(O)NH—, —NHC(O)O—, —C(O)NHC(O)—, —NHC(O)NH—, —S(O)—, —C(S)O—, —C(S)NH—, —NHC(S)—, —NHC(S)O—, R3 having the aforementioned meaning, Z represents a functional group, which may be the same or different, selected from OH, the carboxylic acid group —COOH or a salt or an ester of said group, and a=2, 3, 4, 5 or a greater integer, characterized in that, in a single or second reaction, said groups of the silanes or siloxanes are either reacted with a compound (II) Y—(W)k-Q)b   (II) where in Y is NCO, epoxy, or—if the groups Z are hydroxy groups—COA′, A′ representing a hydroxy, a halide, or —OC(O)R4, in which R4 is a substituted or unsubstituted hydrocarbon group, W has the aforementioned meaning, Q is either R1 or OH, NR72, NR73+, CO2H, SO3H, PO(OH)2, (O)PO(OH)2, (O)PO(OR4)2 or a salt or ester of the aforementioned acids, wherein R1 is an unsaturated, organically polymerizable group, R4 has the aforementioned meaning, R7 has either the same meaning as R4 or two groups of R7 together may optionally represent an unsaturated alkylene group, k=0 or 1, where k=0 only in the event that Y represents COA′, and b=1, 2, 3, 4, or a greater integer; or, in the event that Z═OH, the groups of the silanes or siloxanes are reacted with P2O5 or POCl3. The invention further relates to a method for producing silanes or siloxanes with the grouping -AW(Z)a, and to multiple methods which have additional method steps on the basis of the aforementioned single or second reaction, the physical distance between the groups Q being increasable and the number thereof optionally being increasable. Furthermore, the invention relates to silanes and silicic acid(hetero)polycondensates which can be produced using said methods.

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