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.

Date of Patent:
Apr. 21, 2026

Filed:

Jan. 12, 2021
Applicant:

Nissei Asb Machine Co., Ltd., Nagano, JP;

Inventors:

Toshiteru Oike, Nagano, JP;

Yoichi Tsuchiya, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 49/06 (2006.01); B29C 49/12 (2006.01); B29C 49/22 (2006.01); B29C 49/48 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/06 (2013.01); B29C 49/12 (2013.01); B29C 49/22 (2013.01); B29C 49/48 (2013.01); B29C 2949/0724 (2022.05); B29C 2949/3034 (2022.05); B29K 2995/0021 (2013.01); B29L 2031/712 (2013.01);
Abstract

A manufacturing method of a resin container includes: a first injection molding process for injection-molding a first layer of a preform having a bottomed cylindrical shape by using a first resin material; a second injection molding process for injecting a second resin material having a color that is different from a color of the first resin material, and laminating a second layer on an outer peripheral side or an inner peripheral side of the first layer; and a blow-molding process for blow-molding a preform that includes multiple layers and has been obtained in the second injection molding process in a state where residual heat at a time of injection molding is contained, and manufacturing the resin container having a color pattern that corresponds to a thickness distribution of the first layer and the second layer.


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