Platinum/triene complexes useful for hydrosilylation catalysis

Details Platinum/triene complexes useful for hydrosilylation catalysis Platinum/triene complexes useful for hydrosilylation catalysis

1985-12-20

1987-08-18

Sneed, Helen M. S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

428405, 528 15, C07F 1500

Patent

active

046878700

ABSTRACT:
Novel platinum/olefin complexes, useful for the hydrosilylation curing catalysis of hardenable organopolysiloxane compositions, are facilely prepared by reacting a platinum halide with at least one alkali or alkaline earth metal carbonate or bicarbonate in the presence of an aliphatic triene ligand having the general formula: ##STR1## wherein R.sub.1 is a linear or branched chain alkyl radical having from 1 to 6 carbon atoms, and R.sub.2 is R.sub.1 or a linear or branched chain alkenyl radical having from 2 to 16 carbon atoms and at least one site of ethylenic unsaturation, and said complex having a ratio, in gram-atoms of halogen to gram-atoms of platinum, ranging from virtually 0 to 4.

REFERENCES:
patent: 3159601 (1964-12-01), Ashby
patent: 3159662 (1964-12-01), Ashby
patent: 4394317 (1983-07-01), McAfee et al.
patent: 4510094 (1985-04-01), Drahnak

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