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:
Jul. 19, 2016
Filed:
Jan. 10, 2011
Kristopher J. Derks, Woodbury, MN (US);
Robert M. Biegler, Woodbury, MN (US);
Terence D. Neavin, St. Paul, MN (US);
Kristopher J. Derks, Woodbury, MN (US);
Robert M. Biegler, Woodbury, MN (US);
Terence D. Neavin, St. Paul, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
A method is disclosed that includes forming a plurality of polymer layers via a plurality of slots, wherein the plurality of layers are combined to generate a multilayer polymer flow stream; and controlling heat flow to the plurality of slots in conjunction with the formation of the plurality of polymer layers. The multilayer polymer flow stream may be used to generate a multilayer film. In some embodiments, the cross-web layer thickness profile may be controlled by controlling heat flow to the plurality of slots that form the plurality of polymer layers.