Dow Corning Corporation

Patricia Ann Olney

Dongchan Ahn

James Steven Tonge

Nick Evan Shephard

Cheryl Lynn Loch

Mohamed Mustafa

A curable organosilicon composition includes a radical curable organosilicon compound, an organoborane-amine complex, a condensation curable organosilicon compound, a condensation cure catalyst, and a condensation-reactive cross-linking compound. The curable organosilicon composition may further include an amine-reactive compound. A method of forming the curable organosilicon composition introduces the organoborane-amine complex and the amine-reactive compound into separate reaction vessels. The curable organosilicon composition is used to form various articles.

Curable organosilicon composition

Organosilicon functional boron amine catalyst complexes have an organosilicon functional organoborane portion of the complex that contains at least one silicon atom. The complexes can be used as components in curable compositions containing (i) a free radical polymerizable monomer, oligomer or polymer; (ii) the organosilicon functional boron amine catalyst complex; and (iii) an amine reactive compound having amine reactive groups. The curable compositions may contain a component capable of generating a gas, as well as various other optional ingredients. These curable compositions can be used as rubbers, tapes, adhesives, protective coatings, thin films, thermoplastic monolithic molded parts, thermosetting monolithic molded parts, sealants, foams, gaskets, seals, o-rings, pressure sensitive adhesives, die attachment adhesives, lid sealants, encapsulants, potting compounds, conformal coatings, and electronic components. The compositions can also be used in composite articles of manufacture in which substrates are coated or bonded together with the composition and cured, such as in connectors, diving masks, or other integrally bonded parts.

Organosilicon functional boron amine catalyst complexes and curable compositions made therefrom

Curable compositions contain (i) a free radical polymerizable organosilicon monomer, oligomer or polymer; (ii) an organoborane amine complex; optionally (iii) an amine reactive compound having amine reactive groups; and optionally (iv) a component capable of generating a gas when mixed with a compound bearing active hydrogen and a catalyst. The curable compositions can be used as a rubber, tape, adhesive, foam, pressure sensitive adhesive, protective coating, thin film, thermoplastic monolithic molded part, thermosetting monolithic molded part, sealant, gasket, seal, or o-ring, die attachment adhesive, lid sealant, encapsulant, potting compound, or conformal coating. The compositions can also be used in composite articles of manufacture such as integrally bonded device including electrical and electronic connectors and scuba diving masks, in which substrates are coated or bonded together with the composition and cured.

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Midland, MI, United States of America

Patricia Ann Olney