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:
Apr. 28, 2020
Filed:
Oct. 19, 2017
Tokiwa Chemical Industries Co., Ltd., Shiroi-shi, Chiba, JP;
System Technical Co., Ltd., Inzai-shi, Chiba, JP;
Takashi Hirokawa, Chiba, JP;
Katsuhisa Kato, Chiba, JP;
TOKIWA CHEMICAL INDUSTRIES CO., LTD., Chiba, JP;
TOKIWA KEISEI CO., LTD., Chiba, JP;
Abstract
A method for producing an extrusion molded product for automobiles, comprising the following steps: A synthetic resin injected into a first extrusion molding machine () is extruded through a first mold die () as a core material (); the core material () passes through a first cooling tank (), and then is bent by bending rollers () into a desired curved shape with a radius of curvature R; the core material () is extended linearly, and goes into a second mold die (); a thermoplastic elastomer injected in a second extrusion molding machine () forms seal portions () and seal lip portions () on a periphery of the core material (); thereby forming a curved portion with a radius of curvature Ron the extrusion molded product ().