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. 28, 2020
Filed:
Oct. 12, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Claude Lavallée, Maplewood, MN (US);
Peter J. Scott, Woodbury, MN (US);
Denis Duchesne, Woodbury, MN (US);
Dale E. Hutchens, Huntsville, AL (US);
Larry A. Last, Moulton, AL (US);
Kirsten J. Fronek, Woodbury, MN (US);
Thomas J. Blong, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A polymer composition includes a non-fluorinated, thermoplastic polymer and a minor amount of a fluoropolymer combined with the non-fluorinated polymer. A polymer processing additive composition that includes a fluoropolymer and a polymer processing additive synergist is also disclosed. The fluoropolymer includes diads represented by formula —CF2-CF(R)—CH(R')—CF(R″)— in a range from about 23 mole percent to about 50 mole percent. Each R is independently —CF, —Rf, or —ORf, each R′ and R″ are independently H, F, CF, or —Rf, and each Rf is independently a perfluoroalkyl group having from 1 to 12 carbon atoms and optionally interrupted by one or more —O— groups. A method of reducing melt defects during the extrusion of a polymer is also disclosed.