Mobil Oil Corporation

John P Guarino

William H McCarty

Frank A Nagy

Frederick C Schwab

George B Due

Coating compositions comprising a combination of a minor amount of high MW resin of low functionality with a large proportion of monoethylenically unsaturated monomer having a relatively high Tg to provide a coating which, when cured, will possess a degree of hardness and flexibility enabling it to withstand severe fabrication and/or flexure stresses without film failure or loss of adhesion to the substrate. By controlling the molar ratio of unsaturated carbon bonds present in polyunsaturated molecules to those present in monounsaturated molecules, one is able to predict and control the physical performance and character of the cured coating.

Method for producing articles by deformation substrates having a

Radiation curable coating vehicles, suitable for transfer coating application and strippable from a variety of carrying webs, can be produced by proper selection of coating ingredients and cured either by actinic radiation or electron beams. Potential crosslink density (as herein defined), glass transition temperature and the relative presence or absence of specific adhesion-promoting functional groups are controlled to arrive at a coating composition having the desired degree of adhesion to the substrate to be coated and the carrying web which is to transfer the coating composition to that substrate.

Process for transfer coating with radiation-curable compositions

A flexible film laminate especially adapted for use in the manufacture of a retortable pouch for the packaging of food is disclosed which comprises:

Flexible film laminate especially adapted for use in the construction of

A radiation curable coating composition for various substrates containing an adduct of acrylic acid and an epoxy resin (which may be modified with an anhydride, such as maleic anhydride), and a reactive acrylate monomer vehicle. The coating composition can be pigmented and can also contain additives commonly used in coatings, such as wetting agents and flow control agents. The coating composition does not require the usual hydrocarbon vehicles that give rise to air pollution problems. Surface gloss of a UV cured film obtained from a pigmented coating composition can be increased by using a photosensitizer combination of 2-chlorothioxanthone and a phenyl ketone, such as benzophenone. Adhesion of a cured coating is improved by replacing the tertiary amine co-sensitizer, at least in part, with dimethylaminoethyl acrylate.

Radiation curable coating

A radiation curable coating composition for various substrates contains an adduct of acrylic acid and an epoxy resin (which may be modified with an anhydride, such as maleic anhydride), and a reactive acrylate monomer vehicle. The coating composition can be pigmented and can also contain additives commonly used in coatings, such as wetting agents and flow control agents. The coating composition does not require the usual hydrocarbon vehicles that give rise to air pollution problems. Surface gloss of a UV cured film obtained from a pigmented coating composition can be increased by using a photosensitizer combination of 2-chlorothioxanthone and a phenylketone, such as benzophenone. Adhesion of a cured coating is improved by replacing the tertiary amine co-sensitizer, at least in part, with dimethylaminoethyl acrylate.

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Trenton, NJ, United States of America

John P Guarino