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. 30, 2010
Filed:
Oct. 15, 2007
Kevin L. Nichols, Freeland, MI (US);
Brett M. Birchmeier, Midland, MI (US);
Martin H. Tusim, Midland, MI (US);
Ian M. Ward, Leeds, GB;
Philip D. Coates, Leeds, GB;
Phil Caton-rose, Bradford, GB;
Glen P. Thompson, Bradford, GB;
Kevin L. Nichols, Freeland, MI (US);
Brett M. Birchmeier, Midland, MI (US);
Martin H. Tusim, Midland, MI (US);
Ian M. Ward, Leeds, GB;
Philip D. Coates, Leeds, GB;
Phil Caton-Rose, Bradford, GB;
Glen P. Thompson, Bradford, GB;
Dow Global Technologies, Inc., Midland, MI (US);
Abstract
An inventive solid state drawing die has shaping walls that define a shaping channel and that, in the course of solid state drawing, direct polymer composition along a drawing path. Each cross section of the drawing path (and, hence, polymer composition in the drawing path) is non-circular, substantially proportional to one another, contains a centroid that lies on a substantially straight line parallel to the drawing direction and all cross sectional dimensions are 1.5 millimeters or more.