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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.:

US 10549460 B1

PDFFull Text
Date of Patent:
Feb. 04, 2020

Filed:

Mar. 22, 2017

Method of manufacturing heat-resistant container

Applicant:

Nakamoto Packs Co., Ltd., Osaka-shi, Osaka, JP;

Inventors:

Takashi Nakamoto, Osaka, JP;

Hitoshi Sasaki, Kawasaki, JP;

Kaori Shimizu, Osaka, JP;

Assignee:

NAKAMOTO PACKS CO., LTD., Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Melody Tsui

Int. Cl.
CPC ...
B29C 43/56 (2006.01); B29C 51/10 (2006.01); B29C 51/00 (2006.01); B29B 7/84 (2006.01); B29C 43/00 (2006.01); B29C 43/02 (2006.01); B29D 22/00 (2006.01); B29B 11/10 (2006.01); B29B 11/14 (2006.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 43/56 (2013.01); B29B 7/847 (2013.01); B29C 43/003 (2013.01); B29C 43/02 (2013.01); B29C 51/002 (2013.01); B29C 51/10 (2013.01); B29D 22/003 (2013.01); B29B 11/10 (2013.01); B29B 11/14 (2013.01); B29C 2043/561 (2013.01); B29K 2067/003 (2013.01); B29K 2105/256 (2013.01); B29K 2995/004 (2013.01); B29K 2995/0016 (2013.01); B29K 2995/0025 (2013.01); B29K 2995/0026 (2013.01); B29L 2031/712 (2013.01);
Abstract

Upon manufacturing a heat-resistant container using PET sheet, high heat-resistance is achieved without a stretching operation. The method comprises a molding sheet-making process, wherein a sheet is made including organic acid metal salt particulates produced by allowing an inorganic basic material or carbonate that is solid at ordinary temperature to react with an organic acid that is solid at ordinary temperature in the equivalent relationship, and a container-molding process, wherein, the molding sheet made in the molding sheet-making process is heated to 80-130° C., formed into a container shape by a vacuum or vacuum-pressure forming machine using a mold, and heat-set by keeping at 130-220° C. in the same mold, and the container formed in the container-molding process has a crystallinity of 18% or more.

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