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:
Jan. 13, 2009
Filed:
Nov. 24, 2004
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 includes introducing primary raw materials including a non-thermoplastic elastomer into a feeding section of the modified planetary roller extruder, conveying the raw materials from the feeding section to a compounding section of the modified planetary roller extruder, continuously mixing the primary raw materials in the compounding section to produce a homogeneous adhesive composition. The adhesive composition may be applied to a web-form material. The compounding section of the modified planetary roller extruder includes a main spindle surrounded by and intermeshed with a plurality of planetary spindles at least one of which is a double transversal mixing spindle having a plurality of back-cut helical flights.