发明名称 |
METHOD OF PRODUCING PARTIALLY HYDROLYZED POLYACRYLAMIDE |
摘要 |
Polyacrylamide in the form of aquagel is partially hydrolyzed in such a manner that small pieces of the aquagel are mixed with an alkali agent in a specified quantity and maintained at a temperature of 50 DEG to 95 DEG C. until the hydrolysis reaches substantial completion. The quantity of the alkali agent is that corresponding to 1/1.1 to 1/3 of the hydrolysis percentage desired of the final partially hydrolyzed polyacrylamide. The partially hydrolyzed polyacrylamide thus produced is characterized by uniform hydrolysis evidenced by its improved solubility in water and a pH around 7 of its aqueous solution. The term "aquagel" is herein used interchangeably with a term "hydrogel". |
申请公布号 |
SU1271373(A3) |
申请公布日期 |
1986.11.15 |
申请号 |
SU19843725954 |
申请日期 |
1984.04.03 |
申请人 |
NITTO CHEMICAL INDUSTRY;MITSUBISHI RAYON CO;DAIYA FUROTSUKU CO |
发明人 |
RIODZI KHANDA,JP;DZUN KHOSODA,JP;NORIMASA ESIDA,JP |
分类号 |
C08F8/00;C08F8/12;C08F220/58 |
主分类号 |
C08F8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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