您的位置: 首页 > 农业专利 > 详情页

PROCÉDÉ DE PRODUCTION DE POLYMÈRES ABSORBANT L'EAU AYANT UNE VITESSE D'ABSORPTION ÉLEVÉE
专利权人:
Evonik Degussa GmbH
发明人:
WATTEBLED, Laurent,LOICK, Christoph,HARREN, Jörg,LEININGER, Stefan
申请号:
EP12711884.2
公开号:
EP2699609B1
申请日:
2012.04.03
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
A process for producing a water-absorbing polymer composition, comprising the process steps of (i) mixing (α1) 0.1 to 99.999% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof (α2) 0 to 70% by weight of polymerized, ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001 to 10% by weight of one or more crosslinkers, (α4) 0 to 30% by weight of water-soluble polymers, and (α5) 0 to 20% by weight of one or more assistants, where the sum of their weights (α1) to (α5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble aqueous untreated hydrogel polymer, and surface postcrosslinking the ground hydrogel polymer wherein blowing agents having a particle size of 100 μm to 900 μm are added to the aqueous monomer solution prior to the addition of the initiator and the start of the free-radical polymerization.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充