POLYETHYLENIMINE COATED POLYMERIC BEADS - DOW GLOBAL TECHNOLOGIES LLC

Title:

POLYETHYLENIMINE COATED POLYMERIC BEADS

Document Type and Number:

WIPO Patent Application WO/2020/006710

Kind Code:

A1

Abstract:

Polyethylenimine coated polymeric beads comprising a polymer that comprises, based on the weight of the polymer, from 25% to 75%by weight of structural units of an acetoacetoxy or acetoacetamide functional monomer, and from 25% to 75%by weight of structural units of a polyvinyl monomer; the polyethylenimine having a number average molecular weight of 300 g/mol or more; the polyethylenimine coated polymeric beads having a specific surface area in the range of from 20 to 400 m 2/g; a process of preparing the polyethylenimine coated polymeric beads; a gas filter device comprising the polyethylenimine coated polymeric beads as a filter medium; and a method of removing aldehydes from air containing aldehydes, comprising contacting the air with the polyethylenimine coated polymeric beads.

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WO/2001/078872

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Inventors:

ZHANG JIGUANG (CN)
ZOU JIAN (CN)
CHEN HONGYU (CN)
FENG SHAOGUANG (CN)
YAO WENBIN (CN)
LI HAIYING (CN)
ZHAI XUEMEI (CN)

Application Number:

PCT/CN2018/094509

Publication Date:

January 09, 2020

Filing Date:

July 04, 2018

Export Citation:

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Assignee:

DOW GLOBAL TECHNOLOGIES LLC (US)
ZHANG JIGUANG (CN)
ZOU JIAN (CN)
CHEN HONGYU (CN)
FENG SHAOGUANG (CN)
YAO WENBIN (CN)
LI HAIYING (CN)
ZHAI XUEMEI (CN)

International Classes:

B01D53/04; B01D53/82; C08F220/00; C08F290/00; C08L23/04; C08L79/02

Domestic Patent References:

WO2003059971A1	2003-07-24
WO1999014275A1	1999-03-25

Foreign References:

US20080134893A1	2008-06-12
CN108136312A	2018-06-08
CN103261144A	2013-08-21
US20080134893A1	2008-06-12

Other References: