Eastman Chemical Company

Emmett Patrick O'Brien

Michael Eugene Donelson

Scott Ellery George

Marcus David Shelby

Douglas Grant Atkins

Gary Robert Robe

Freddie Wayne Williams

Jeremy Richard Lizotte

Joshua Seth Cannon

Anthony Joseph Pasquale

Disclosed are hot-melt adhesives prepared from polyesters containing 1,4-cyclohexane-dicarboxylic acid as a diacid component and a diol component containing at least two diols chosen from 1,4-cyclohexanedimethanol, triethylene glycol, and diethylene glycol. These adhesives set up rapidly within a well-defined temperature window. The hot-melt adhesives can be used in a variety of applications, but are especially suited as seaming adhesives for roll-applied labels. These adhesives have melting temperatures and crystallization properties that allow their application at temperatures cool enough to prevent curling and premature shrinkage of the shrink label during seaming, and yet produce strong label seams that can withstand the elevated temperatures of a shrink tunnel without sacrificing line speed. Also disclosed are labeled containers and a process for applying a roll-on, shrink label to a container using the hot-melt adhesives of the invention.

Hot melt adhesives for roll-applied labels

A hypoallergenic adhesive article employing a switchable pressure sensitive adhesive (PSA) composition comprising one or more amphiphilic polyesters in physical mixture with a humectant. When contacted with a liquid of low-ion content, the adhesive undergoes a reduction in peel strength, which allows for easy removal, but remains strongly adhered when contacted with ionic liquids, such as blood, sweat, and other bodily fluids. The adhesive composition can be employed in a variety of medical articles or in other similar applications.

Switchable adhesive article for attachment to skin and method of using the same

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Johnson City, TN, United States of America

Emmett Patrick O'Brien