Borgwarner Inc.

Other

Murray S Cohen

Jan G Noltes

Gerard Van Koten

John C Falk

Leo L Valdiserri

Kenneth W Narducy

Claire Bluestein

Donald E O'Connell

A process for preparing an adhesive, transparent, corrosion and abrasion resistant polymeric coating on a substrate, such as a glass, plastic or metal such as aluminum or steel. The substrate is coated with a mixture of up to about 15% by weight of an expanding polycyclic monomer such as a spiroorthocarbonate or spiroorthoester, a diepoxy oligomer such as a diglycidyl ether, and a lactone in a concentration of from about 1:2.5 to 1:4.5 by weight of the oligomer. To this mixture is added a catalytic quantity of a boron trihalide-amine complex and a catalytic quantity of an aromatic photocatalyst which releases a carbonium ion upon ultraviolet irradiation. The coated substrate is exposed to broad wavelength UV light for from about 2 to 20 seconds to initiate polymerization. Polymerization of the coating is completed by heating the coated substrate at a temperature of from about 50.degree. to 120.degree. C. for a sufficient period to complete polymerization to a flexible, tough, abrasive and corrosion resistant transparent coating. If the substrate is very thin, the heating may be omitted, as determined by the artisan. Instead of heating to complete polymerization, a di- or tri- functional acrylate may be added to the initial mixture. Preferably, the expanding monomer is a spiroorthoester formed in situ by the reaction of a lactone such as .gamma.-butyrolactone with an epoxide, as known in the art.

Transparent abrasion-resistant flexible polymeric coating

A process for the preparation of novel zero-valent rhodium catalysts. The catalysts are prepared by the reaction of a hydrocarbyl-lithium compound with a hydrocarbon-soluble complex of a rhodium halide and a ligand. The catalyst may, if desired, be deposited on a support such as alumina or silica. It is effective to catalyze the hydrogenation of organic compounds such as benzene, styrene and the like.

Zero-valent rhodium catalyst hydrogenation

Zero-valent rhodium catalysts and process of preparation

A process for the preparation of novel zero-valent metal catalysts. The catalysts are prepared by the reaction of an organic metal cluster compound wherein one of the metals is lithium with a complex of a metal halide and a ligand. The catalyst may, if desired, be deposited on a support such as alumina or silica. It is effective to catalyze the hydrogenation of organic compounds such as benzene, styrene and the like.

Hydrocarbon hydrogenation using zero valent metal catalysts

Flame-retardant polymer compositions containing a pentaerythritol diphosphonate and a halogenated organic compound having at least about 30% halogen. Dimethyl pentaerythritol disphosphonate, i.e., ##STR1## is a preferred ingredient of the composition, as is polypropylene.

Flame-retardant phosphonate compositions

Zero-valent metal catalysts and a process for preparing them

Blends of polycarbonates with from 3 to about 10 weight per cent of a graft polymer having incorporated therein pendent phenalkyl groups exhibit markedly decreased notch sensitivity. The blends have remarkably high clarity and low haze.

High clarity blends of polycarbonates with mercaptan-modified graft

A food composition stabilized by the presence therein of a small proportion of a dialkyl pentaerythritol diphosphite. The alkyl groups each contain 10-18 carbon atoms.

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Convent Station, NJ, United States of America

Murray S Cohen