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:
Oct. 08, 2013
Filed:
Dec. 27, 2011
John Kinch Tynan, Jr., Port Huron, MI (US);
Richard Walter St. Coeur, Marysville, MI (US);
David Michael Kovach, Marysville, MI (US);
Thomas Lombardo, Bradenton, FL (US);
John Kinch Tynan, Jr., Port Huron, MI (US);
Richard Walter St. Coeur, Marysville, MI (US);
David Michael Kovach, Marysville, MI (US);
Thomas Lombardo, Bradenton, FL (US);
Intertape Polymer Corp., Bradenton, FL (US);
Abstract
A process for preparing a pressure sensitive adhesive using a modified planetary roller extruder is described. The process in accordance with one aspect of the invention is a continuous process that includes introducing primary raw materials comprising a non-thermoplastic elastomer into a planetary roller extruder, introducing a heat-activatable crosslinker into the planetary roller extruder for mixing with the primary raw materials, and compounding the primary raw materials and the heat activatable crosslinker to form an adhesive composition while maintaining the temperature of the adhesive composition between about 25° C. and about 100° C. The non-thermoplastic elastomer is masticated during compounding and at least some of the heat-activatable crosslinker remains generally unactivated and is available for later activation.