The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Apr. 05, 2010
William R. Dougherty, Lancaster, PA (US);
Alan J. Pape, Honey Brook, PA (US);
Nestor P. Hansen, Coatesville, PA (US);
W. Paul Boggs, Coatesville, PA (US);
Charles C. Mateer, Richboro, PA (US);
William R. Dougherty, Lancaster, PA (US);
Alan J. Pape, Honey Brook, PA (US);
Nestor P. Hansen, Coatesville, PA (US);
W. Paul Boggs, Coatesville, PA (US);
Charles C. Mateer, Richboro, PA (US);
Cray Valley USA, LLC, Exton, PA (US);
Abstract
An additive composition for imparting caustic removability to a hot melt adhesive comprises a low molecular weight α,β ethylenically unsaturated anhydride-containing or acid-containing polymer. The polymer is selected from the group consisting of a low molecular weight carboxylic anhydride homo-polymer or the at least partial ester thereof, a low molecular weight carboxylic anhydride copolymer or the at least partial ester thereof, a low molecular weight carboxylic anhydride polyolefin, a low molecular weight carboxylic anhydride vinyl aromatic copolymer, and a low molecular weight carboxylic anhydride grafted copolymer, or the combination or mixtures thereof. A caustic removable hot melt adhesive composition comprises a hot melt adhesive additive and a conventional hot melt adhesive resin. A caustic removable adhesive label comprises a substrate and a caustic removable hot melt adhesive composition which includes an additive composition. The caustic removable hot melt adhesives can be used on labels for articles, such as glass bottles.