Tin (IV) compounds

Details Tin (IV) compounds Tin (IV) compounds

1991-06-13

1992-01-28

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

521128, C08G 1808, C08G 1824

Patent

active

050845438

ABSTRACT:
Novel tetracoordinated tin (IV) compounds, well suited as latent catalysts for the preparation of polyurethanes or for the crosslinking of curable diorganopolysiloxanes (upon thermal decomposition thereof into diorganotin dicarboxylates or dialcoholates), have the general formula (1): ##STR1## in which the radicals R, which may be the same or different, are each a linear or branched chain C.sub.1 -C.sub.20 alkyl radical, a mononuclear aryl radical, or an aralkyl or alkaryl radical, the alkyl moieties of which having from 1 to 6 carbon atoms; the radicals R.sub.1 and R.sub.2, which may be the same or different, are each a hydrogen atom, a cyano radical, a C.sub.1 -C.sub.6 alkyl radical, or an alkoxycarbonyl radical, the alkyl moiety of which having from 1 to 6 carbon atoms, with the proviso that R.sub.1 and R.sub.2 may together form a saturated hydrocarbon ring member having from 5 to 8 carbon atoms; the radical R.sub.3 is a hydrogen atom, a linear or branched chain C.sub.1 -C.sub.20 alkyl radical, a linear or branched chain C.sub.1 -C.sub.20 alkoxy radical, a mononuclear aryl radical or a mononuclear aryloxy radical; and a is 0 or 1.

REFERENCES:
patent: 3206489 (1965-09-01), Stamm
patent: 4390640 (1983-06-01), Rasshofer et al.
patent: 4546109 (1985-10-01), Hubele et al.
patent: 4795820 (1989-01-01), Synoradzki et al.

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