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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 11174365 B1

PDFFull Text
Date of Patent:
Nov. 16, 2021

Filed:

Nov. 02, 2017

Foam particles and foam particle molded body

Applicant:

Jsp Corporation, Tokyo, JP;

Inventors:

Shota Takagi, Yokkaichi, JP;

Masaharu Oikawa, Tokyo, JP;

Assignee:

JSP Corporation, Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery LLP

Primary Examiner:

Michael M Dollinger

Assistant Examiner:

Christina H W. Rosebach

Int. Cl.
CPC ...
C08J 9/232 (2006.01); C08J 3/20 (2006.01); C08J 9/18 (2006.01); C08J 9/16 (2006.01); B29B 9/12 (2006.01); B29B 7/00 (2006.01); B29B 9/06 (2006.01); B29C 44/34 (2006.01); B29K 23/00 (2006.01); B29K 96/04 (2006.01); B29K 105/00 (2006.01); B29K 105/04 (2006.01); B29K 105/24 (2006.01); B29B 7/38 (2006.01); B29C 44/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/232 (2013.01); B29B 7/007 (2013.01); B29B 9/12 (2013.01); C08J 3/201 (2013.01); C08J 9/16 (2013.01); C08J 9/18 (2013.01); B29B 7/38 (2013.01); B29B 9/06 (2013.01); B29C 44/00 (2013.01); B29C 44/3461 (2013.01); B29K 2023/08 (2013.01); B29K 2096/04 (2013.01); B29K 2105/0085 (2013.01); B29K 2105/04 (2013.01); B29K 2105/24 (2013.01); C08J 2203/06 (2013.01); C08J 2203/22 (2013.01); C08J 2205/044 (2013.01); C08J 2323/08 (2013.01); C08J 2353/00 (2013.01);
Abstract

The present invention is concerned with expanded beads of a block copolymer of a polyethylene block and an ethylene/α-olefin copolymer block, wherein a xylene insoluble fraction (A) of the expanded beads by a hot xylene extraction method is 10 to 70% by weight, and a ratio (A/B) of the xylene insoluble fraction (A) to a xylene insoluble fraction (B) of the expanded beads by a hot xylene extraction method when divided into two equal parts and measured is 1.0 to 1.1, and is able to provide expanded beads with excellent in-mold moldability and an expanded beads molded article with excellent fusion bondability and restorability.

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