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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 11697896 B1

PDFFull Text
Date of Patent:
Jul. 11, 2023

Filed:

Oct. 12, 2017

Method for producing a biodegradable nonwoven fabric

Applicant:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yusuke Yamada, Tokyo, JP;

Chie Okamura, Tokyo, JP;

Takuya Matsumoto, Tokyo, JP;

Rumina Obi, Tokyo, JP;

Kazufumi Kato, Tokyo, JP;

Assignee:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
B29C 51/02 (2006.01); D01D 1/04 (2006.01); D01D 5/088 (2006.01); D04H 3/16 (2006.01); D06C 3/00 (2006.01); D06C 3/02 (2006.01); D06C 3/04 (2006.01); D06C 3/08 (2006.01); D06C 3/10 (2006.01); D06C 15/00 (2006.01); D06C 15/02 (2006.01); D04H 1/435 (2012.01); A47J 31/02 (2006.01); B29C 51/00 (2006.01); B65D 65/46 (2006.01); D04H 1/558 (2012.01); D04H 3/011 (2012.01); A47J 31/06 (2006.01); B65D 85/804 (2006.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
D04H 1/435 (2013.01); A47J 31/02 (2013.01); A47J 31/06 (2013.01); B29C 51/004 (2013.01); B65D 65/466 (2013.01); B65D 85/8061 (2020.05); D04H 1/558 (2013.01); D04H 3/011 (2013.01); B29K 2067/046 (2013.01); B29K 2105/256 (2013.01); B29K 2995/006 (2013.01); B29K 2995/0081 (2013.01); B29L 2031/712 (2013.01); D10B 2401/12 (2013.01);
Abstract

The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.

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