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:
Aug. 05, 1980
Filed:
Dec. 07, 1977
Applicant:
Inventors:
Claude Bonnebat, Pontault Combault, FR;
Gerard Halna du Fretay, Saint-Michel sur Orge, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ;
U.S. Cl.
CPC ...
428 35 ; 264 406 ; 264209 ; 264540 ; 366340 ; 4251331 ; 425144 ; 4253 / ; 425380 ;
Abstract
Hollow shaped articles are extruded, advantageously continuously extruded, from molten thermoplastics by controlled cooling of the molten charge prior to entry into an extrusion die.