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:
Oct. 05, 1976
Filed:
Jun. 30, 1975
Joseph J Hall, Bridgewater, NJ (US);
Ralf Korpman, Somerville, NJ (US);
Johnson & Johnson, New Brunswick, NJ (US);
Abstract
A process for extruding thermoplastic elastomeric film using a single screw extruder to extrude a particular type of a potentially sticky dry particulate mixture comprising relatively high molecular weight thermoplastic elastomer particles and relatively low molecular weight resin particles wherein the particulate mixture is fed starved, advanced axially, and prevented from sticking to the screw by mechanically displacing the mixture rotatively with respect to the screw in a prescribed portion of the feed section of the extruder, thereby preventing surging or uneven extrusion due to irregular feeding of the potentially sticky mixture.