Platinum/alkenylcyclohexene complexes useful for hydrosilylation

Details Platinum/alkenylcyclohexene complexes useful for hydrosilylation Platinum/alkenylcyclohexene complexes useful for hydrosilylation

1985-12-20

1987-10-13

Marquis, Melvin I.

Coating processes

With post-treatment of coating or coating material

Heating or drying

428447, 528 15, 528 31, 528 32, 525478, 524861, 524862, B05D 302

Patent

active

046998136

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 alkenylcyclohexene ligand having the general formula: ##STR1## wherein R.sub.1 is an alkenyl radical having from 2 to 6 carbon atoms, and R.sub.2 is a hydrogen atom or an inert organic radical, 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: 3814730 (1974-06-01), Karstedt
patent: 4025485 (1977-05-01), Kodama et al.
patent: 4057596 (1977-11-01), Takamizawa
patent: 4394317 (1983-07-01), McAfee et al.
patent: 4450283 (1984-05-01), McAfee et al.
patent: 4477641 (1984-10-01), Matsumoto
patent: 4500584 (1985-02-01), Modic

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