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:
Mar. 01, 2011
Filed:
Jun. 14, 2005
Ronald W. Ausen, St. Paul, MN (US);
Jayshree Seth, Woodbury, MN (US);
Janet A. Venne, Roseville, MN (US);
Ronald W. Ausen, St. Paul, MN (US);
Jayshree Seth, Woodbury, MN (US);
Janet A. Venne, Roseville, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
Methods for coextruding a predetermined initial melt stream through at least one profiled die having a nonlinear inlet opening and an outlet opening. The die insert is positioned so as to cause redistribution of at least a portion of the melt stream. The nonlinear melt stream formed at the nonlinear inlet opening converges within the die insert into a substantially more linear or rectangular melt stream at the die insert outlet opening. At the die insert outlet opening at least one or more regions of the melt stream vary in properties or material clue to the redistribution of the melt stream in the die insert. Articles extruded using the coextrusion methods are also described.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile