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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 9943825 B1

PDFFull Text
Date of Patent:
Apr. 17, 2018

Filed:

Apr. 22, 2015

Porous graft copolymer particles, method for producing same, and adsorbent material using same

Applicant:

Kuraray Co., Ltd., Kurashiki-shi, JP;

Inventors:

Keisuke Morikawa, Kurashiki, JP;

Yusuke Amano, Kurashiki, JP;

Naoyuki Iwachido, Kurashiki, JP;

Naoki Fujiwara, Kurashiki, JP;

Takumi Takayama, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Kurashiki-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Hoa T Le

Int. Cl.
CPC ...
B01J 20/00 (2006.01); B32B 5/16 (2006.01); B01J 20/26 (2006.01); B01D 15/00 (2006.01); B01J 20/30 (2006.01); C08F 255/02 (2006.01); C08J 9/26 (2006.01); C22B 3/24 (2006.01); B01J 20/34 (2006.01); B01J 20/32 (2006.01); B01J 20/28 (2006.01); B01J 39/18 (2017.01); C08F 261/04 (2006.01); C08J 3/12 (2006.01); C08F 271/02 (2006.01); C08F 8/32 (2006.01); C02F 1/28 (2006.01); C02F 101/20 (2006.01); C02F 101/22 (2006.01);
U.S. Cl.
CPC ...
B01J 20/264 (2013.01); B01D 15/00 (2013.01); B01J 20/28004 (2013.01); B01J 20/28016 (2013.01); B01J 20/28083 (2013.01); B01J 20/28085 (2013.01); B01J 20/30 (2013.01); B01J 20/3014 (2013.01); B01J 20/3028 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); B01J 20/321 (2013.01); B01J 20/3212 (2013.01); B01J 20/3219 (2013.01); B01J 20/3272 (2013.01); B01J 20/3278 (2013.01); B01J 20/3293 (2013.01); B01J 20/3425 (2013.01); B01J 20/3475 (2013.01); B01J 39/18 (2013.01); C08F 8/32 (2013.01); C08F 255/02 (2013.01); C08F 261/04 (2013.01); C08F 271/02 (2013.01); C08J 3/12 (2013.01); C08J 9/26 (2013.01); C22B 3/24 (2013.01); C02F 1/285 (2013.01); C02F 2101/20 (2013.01); C02F 2101/22 (2013.01); C08J 2201/046 (2013.01); C08J 2323/08 (2013.01); C08J 2329/04 (2013.01); C08J 2351/06 (2013.01); C08J 2429/04 (2013.01); C08J 2451/06 (2013.01); Y02P 10/234 (2015.11); Y10T 428/2982 (2015.01);
Abstract

Provided are graft copolymer particles enabling introduction of adsorptive functional groups adsorbing metals and others, a method for producing same, and an adsorbent using same. (1) Porous graft copolymer particles containing graft chains introduced into porous particles (particle surface having an average pore diameter of 0.01-50 μm) including at least one resin selected from olefin resins, water-insoluble modified polyvinyl alcohol resins, amide resins, cellulosic resins, chitosan resins and (meth)acrylate resins. (2) A method for producing porous graft copolymer particles including (I) melt-kneading a polymer A and a polymer B other than the polymer A to obtain a compound material, (II) extracting and removing the polymer B from the compound material to obtain a porous material of the polymer A, (III) granulating the porous material, and (IV) introducing graft chains into the porous particles. (3) An adsorbent of porous graft copolymer particles.

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