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 9193842 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 24, 2015

Filed:

Jan. 30, 2014
Applicant:

Kaneka Corporation, Osaka-shi, Osaka, JP;

Inventor:

Kiyotaka Nakayama, Settsu, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 110/02 (2006.01); B29C 44/02 (2006.01); C08L 23/08 (2006.01); C08J 9/16 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/18 (2006.01); C08J 9/232 (2006.01); C08L 23/04 (2006.01); C08J 9/228 (2006.01);
U.S. Cl.
CPC ...
C08J 9/16 (2013.01); C08J 9/0023 (2013.01); C08J 9/12 (2013.01); C08J 9/18 (2013.01); C08J 9/228 (2013.01); C08J 9/232 (2013.01); C08L 23/04 (2013.01); C08J 2201/034 (2013.01); C08J 2323/06 (2013.01); C08J 2323/08 (2013.01);
Abstract

A noncrosslinked polyethylene resin expanded particle is provided having a bulk density BD in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cmto 0.940 g/cm, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1):Shrinkage Factor=()×100/  (1),wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.


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Nakayama, Kiyotaka. (2015). Method for producing noncrosslinked polyethylene resin expanded particle (first stage expanded particle) and re-expanded noncrosslinked polyethylene resin expanded particle (U.S. Patent No. 9193842). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9193842

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