Title:
A PROCESS FOR PREPARING POLY (DIALLYLDIMETHYLAMMONIUM CHLORIDE ) WITH HIGH RELATIVE MOLECULAR WEIGHT
Document Type and Number:
WIPO Patent Application WO/2007/143911
Kind Code:
A1
Abstract:
A process for preparing poly (diallyldimethylammonium chloride ) is discloesed,in
which diallyldimethylammonium chloride solution produced by the commercial
one-step process is used as the reactant. The content of impurities in the diallyldimethylammonium
chloride solution is within a specific range.The initiator and the complexing
agent are added in a single step at a specific temperature, then the temperature
is increased stage by stage, so that the initiator is decomposed slowly and the
polymerization is initiated step by step. The polymerization continues for
a long time to obtain poly (diallyldimethylammonium chloride ) in the form of
colloids or powders.
Inventors:
ZHANG YUEJUN (CN)
JIA XU (CN)
JIA XU (CN)
Application Number:
PCT/CN2007/001736
Publication Date:
December 21, 2007
Filing Date:
May 29, 2007
Export Citation:
Assignee:
UNIV NANJING SCIENCE & TECH (CN)
ZHANG YUEJUN (CN)
JIA XU (CN)
ZHANG YUEJUN (CN)
JIA XU (CN)
International Classes:
C08F126/04; C08F4/30; C08F26/02; C08F26/04; C08F126/02
Foreign References:
| US6939536B2 | 2005-09-06 | |||
| US4092467A | 1978-05-30 | |||
| KR20050044231A | 2005-05-12 |
Other References:
LIAOHUIYUN: "IMPROVEMENT ON SYNTHESIS PROCESS OF POLY(DIALLYLDIMETHYLAMMONIUM CHLORIDE) WITH HIGH RELATIVE MOLECULAR WEIGHT", THESIS OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, 2004
LUJIANQING: "PRELIMINARY STUDY OF SYNTHESIS PROCESS OF POLY(DIALLYLDIMETHYLAMMONIUM CHLORIDE) WITH HIGH RELATIVE MOLECULAR WEIGHT", THESIS OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, 2003
CHENZHUO: "SYNTHESIS AND POLYMERIZATION OF N,N-DIALLYLDIMETHYL AMMONIUM CHLORIDE", JOURNAL OF GUIZHOU NORMAL UNIVERSITY (NATURAL SCIENCE), vol. 18, no. 4, November 2000 (2000-11-01), pages 50 - 53
LUJIANQING: "PRELIMINARY STUDY OF SYNTHESIS PROCESS OF POLY(DIALLYLDIMETHYLAMMONIUM CHLORIDE) WITH HIGH RELATIVE MOLECULAR WEIGHT", THESIS OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, 2003
CHENZHUO: "SYNTHESIS AND POLYMERIZATION OF N,N-DIALLYLDIMETHYL AMMONIUM CHLORIDE", JOURNAL OF GUIZHOU NORMAL UNIVERSITY (NATURAL SCIENCE), vol. 18, no. 4, November 2000 (2000-11-01), pages 50 - 53
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD. (Changjianghou Street Xuanwu Distric, Nanjing Jiangsu 8, CN)
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