Superabsorbent polymers containing clay, particles and methods for their production

• 收藏
• 分享

专利权人:

エボニック ストックハウゼン エルエルシー

发明人:

アザド ミカエル エム,スミス スコット ジェイ,ジョイ マーク,ブレイク ジェフリー ワイアット,ジャーマン ミカエル エス

申请号：

JP2011531463

公开号：

JP5380541B2

申请日:

2009.10.13

申请国别(地区):

JP

年份:

2014

代理人:

摘要：

A process for the preparation of superabsorbent polymer containing clay, the process including the steps of (I) polymerizing a polymerization mixture comprising: (a) one or more ethylenically unsaturated carboxyl-containing monomers, (b) one or more crosslinking agents, (c) optionally one or more comonomers copolymerizable with the carboxyl-containing monomer, (d) neutralizing agent to partially neutralize the polymer to from about 50% to about 99%, by weight, and (e) a polymerization medium, to form a crosslinked partially neutralized hydrogel, (II) admixing a clay with the crosslinked partially neutralized hydrogel to form partially neutralized superabsorbent polymer-clay hydrogel； (III) drying the crosslinked partially neutralized hydrogel at a temperature from about 190° C. to about 210° C. and for a time period of from about 15 minutes to about 120 minutes, and (IV) comminuting the dried partially neutralized superabsorbent polymer-clay hydrogel to particles.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/