Sun Chemical Corporation

Xiaobo Zhu

Philippe Schottland

Juanita M Parris

Ralph Francis Arcurio

Mathew Charles Mathew

Mohammad Farahat

Yongping Zha

Vanessa Gordon

Mohammad S Farahat

Ralph Arcurio

Described herein are polymer-encapsulated materials and a method for encapsulating materials with polymer via emulsion polymerization. The encapsulated materials include colorants (e.g., pigments and dyes, and in particular fluorescent dyes), optical brighteners, downconverters and upconverters. The encapsulated materials are produced by the emulsion polymerization of ethylenically unsaturated monomers. The polymer-encapsulation method described herein does not require the preparation of a miniemulsion homogenized with special equipment, such as an ultrasonification device, and the resulting polymer-encapsulated materials exhibit optical properties superior to polymer-encapsulated materials prepared by processes that include the preparation of a miniemulsion prepared with such special equipment, such as an ultrasonification device.

Encapsulated materials with improved properties

Described herein is an actinically curable adhesive composition, suitable for sealing flexible packaging, that includes an inert urethane polymer and an ethylenically unsaturated monomer component selected from at least one monofunctional ethylenically unsaturated monomer, at least one multifunctional ethylenically unsaturated monomer, and a combination thereof, wherein the ethylenically unsaturated monomer component disperses the inert urethane polymer. The compositions are suitable for forming flexible packaging materials for foods and other materials, particularly sensitive materials. Also described are flexible packaging materials and a method for preparing an actinically curable adhesive composition.

Actinically curable adhesive composition with improved properties

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Nutley, NJ, United States of America

Xiaobo Zhu