公开(公告)号：US09943825B2

公开(公告)日：2018-04-17

申请号：US14692986

申请日：2015-04-22

Applicant: KURARAY CO., LTD.

Inventor： Keisuke Morikawa ,  Yusuke Amano ,  Naoyuki Iwachido ,  Naoki Fujiwara ,  Takumi Takayama

IPC: B01J20/00 ,  B32B5/16 ,  B01J20/26 ,  B01D15/00 ,  B01J20/30 ,  C08F255/02 ,  C08J9/26 ,  C22B3/24 ,  B01J20/34 ,  B01J20/32 ,  B01J20/28 ,  B01J39/18 ,  C08F261/04 ,  C08J3/12 ,  C08F271/02 ,  C08F8/32 ,  C02F1/28 ,  C02F101/20 ,  C02F101/22

CPC classification number: B01J20/264 ,  B01D15/00 ,  B01J20/28004 ,  B01J20/28016 ,  B01J20/28083 ,  B01J20/28085 ,  B01J20/30 ,  B01J20/3014 ,  B01J20/3028 ,  B01J20/3071 ,  B01J20/3078 ,  B01J20/3085 ,  B01J20/321 ,  B01J20/3212 ,  B01J20/3219 ,  B01J20/3272 ,  B01J20/3278 ,  B01J20/3293 ,  B01J20/3425 ,  B01J20/3475 ,  B01J39/18 ,  C02F1/285 ,  C02F2101/20 ,  C02F2101/22 ,  C08F8/32 ,  C08F255/02 ,  C08F261/04 ,  C08F271/02 ,  C08J3/12 ,  C08J9/26 ,  C08J2201/046 ,  C08J2323/08 ,  C08J2329/04 ,  C08J2351/06 ,  C08J2429/04 ,  C08J2451/06 ,  C22B3/24 ,  Y02P10/234 ,  Y10T428/2982 ,  C08F220/32 ,  C08F220/28 ,  C08F220/54

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.