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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 11643533 B1

PDFFull Text
Date of Patent:
May. 09, 2023

Filed:

Mar. 10, 2021

Film, method of producing film, and bag

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Naoko Ochi, Chiba, JP;

Hiroshi Toyoda, Chiba, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Meunier Carlin & Curfman LLC

Primary Examiner:

Irina S Zemel

Assistant Examiner:

Jeffrey S Lenihan

Int. Cl.
CPC ...
B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 48/67 (2019.01); C08L 23/08 (2006.01); B29K 23/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
C08L 23/0815 (2013.01); B29C 48/0011 (2019.02); B29C 48/022 (2019.02); B29C 48/08 (2019.02); B29C 48/67 (2019.02); B29K 2023/08 (2013.01); B29K 2995/0063 (2013.01); B29L 2031/7128 (2013.01); C08L 2203/162 (2013.01);
Abstract

Provided are a film having an excellent balance between heat seal strength and opening strength, a method of producing the film, and a bag obtained by heat-sealing the film. According to the present invention, there is provided a film containing a resin, wherein a resin density of the film is 860 kg/mor more and less than 900 kg/m, and on at least one surface of the film, an arithmetic mean height Sa satisfies the following Expression [1]:0.10 μm≤Sa≤0.50 μm  [1], and

Find Patent Forward Citations

Ochi, Naoko. (2023). Film, method of producing film, and bag (U.S. Patent No. 11643533). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11643533

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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