The Dow Chemical Company

George A Lee

Harold H Freedman

Richard A Hickner

Stuart N Isaacs

Lynne B Baron

Photocurable compositions containing a polyethylenically unsaturated resin compound and a monoethylenically unsaturated diluent are cured to form compositions containing essentially no polymerizable ethylenically unsaturated compounds by:

Electron rich aromatics as cure promoters for radiation curable

Photocurable resin compositions result from a mixture of polymerizable entities containing both terminal olefinic unsaturation and oxirane groups and a bifunctional curing system capable of initiating free radical and cationic polymerization.

Composition containing polymerizable entities having oxirane groups and

A process for making a supported catalyst comprises contacting a suitable support with an aqueous solution of a metal compound and subsequently contacting said support with a reducing compound dissolved in a water immiscible organic solvent and finally heating said support to reduce the metal compound.

Process for preparing supported metal catalysts

The title compounds are prepared by a convenient, one-step liquid process comprising contacting with agitation, a liquid mixture comprising both:

Preparation of substituted oxatriazoles

An ultraviolet light curable resin composition comprises a mixture of entities including a polyepoxide, a partial or complete unsaturated ester of the same polyepoxide, and a partial or complete hydrolysis product of the same polyepoxide. This resin composition exhibits improved adhesion to metals.

Photocurable partially esterified polyepoxides

A photopolymerizable composition comprises: (1) a free radical polymerizable material, such as ethylenically unsaturated monomers and (2) a photoinitiator system of (a) a compound having an oxirane group in an alpha,beta-position to a carbonyl group, typical of which is 1-benzoyl-2-phenylethylene oxide and (b) a tertiary amine or other electron donor.

Epoxy-carbonyl compositions as photopolymerization initiators

A method of essentially completely polymerizing ultraviolet-curable vinyl compositions containing monofunctional acrylate diluents, the method comprising:

Method of promoting essentially complete vinyl polymerization of

The process of oxidizing organic compounds by dissolving the organic compound in a water-immiscible, inert organic solvent and contacting same with an aqueous hypohalite ion in the presence of a catalytic amount of a quaternary onium salt is improved by employing a primary alkyl ester as the organic solvent. For example, cyclohexylmethylamine is oxidized under mild conditions to a high yield of cyclohexylnitrile by dissolving the amine in ethyl acetate and contacting same with aqueous hypochlorite and in the presence of a catalytic amount of tetra-n-butylammonium chloride.

Primary alkyl esters as mediums for oxidations by phase-transfer

Organic compounds oxidizable by hypohalite ion, such as amines, amides, primary and secondary alcohols, and alkanals are efficiently oxidized in a biphasic mixture comprising: A. a water immiscible, liquid organic phase comprising an organic compound oxidizable by hypohalite ion; with B. an aqueous phase containing hypohalite ion; and C. a catalytic amount of a quaternary ammonium salt and/or a quaternary phosphonium salt.

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Wayland, MA, United States of America

George A Lee