发明公开
EP3978552A1 PRODUCTION METHOD FOR WATER ABSORBENT, AND POLYACRYLIC ACID (SALT) WATER ABSORBENT RESIN
有权
基本信息:
- 专利标题： PRODUCTION METHOD FOR WATER ABSORBENT, AND POLYACRYLIC ACID (SALT) WATER ABSORBENT RESIN
- 申请号：EP20815255.3 申请日：2020-04-21
- 公开(公告)号：EP3978552A1 公开(公告)日：2022-04-06
- 发明人： ADACHI, Yoshifumi , SHOBO, Yoshihiro , FUJINO, Shin-ichi , WATABE, Hiroyasu , IWAMURA, Taku , MASUDA, Makiko
- 申请人： Nippon Shokubai Co., Ltd.
- 申请人地址： JP Osaka-shi, Osaka 541-0043 1-1, Koraibashi 4-chome Chuo-ku
- 代理机构： Ricker, Mathias
- 优先权： JP2019101901 20190531
- 国际公布： WO2020241123 20201203
- 主分类号： C08J3/24
- IPC分类号： C08J3/24 ; C07C217/50 ; B01J20/26 ; B01J20/30
摘要：
Provided is a production method that is for a water absorbent which can simultaneously provide satisfactory absorption against pressure (AAP) and gel bed permeability (GBP) without essentially requiring the use of an epoxy crosslinking agent. This water absorbent agent is produced by treating a polyacrylic acid (salt) water absorbent resin with a surface crosslinking agent containing a compound represented by general formula (1) (in general formula (1), B represents a substituent represented by general formula (2) or general formula (3)).
公开/授权文献:
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08J | 加工；配料的一般工艺过程；不包括在C08B，C08C，C08F，C08G或C08H小类中的后处理 |
| ------C08J3/00 | 高分子物质的处理或配料的工艺过程 |
| --------C08J3/24 | .高分子的交联，如硫化 |