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. 03, 1990
Filed:
Jan. 13, 1989
Applicant:
Inventors:
Takeshi Shiraki, Kuga, JP;
Yosihiro Yoshimura, Iwakuni, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
2642092 ; 26421121 ; 264310 ; 425206 ; 425381 ; 425467 ;
Abstract
Disclosed is a method and apparatus for producing a flexible tube of a thermoplastic resin having poor melt flowability by melting a thermoplastic resin having poor melt flowability in a screw extruder, and melt-extruding the molten thermoplastic resin from a tube die having an L/D of 30-70 provided at a mandrel rotatable with the rotation of the screw.
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Shiraki, Takeshi. (1990). Flexible tube of thermoplastic resin having poor melt flowability and (U.S. Patent No. 4938908). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4938908
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile