申请人:Harima Chemicals, Inc.
公开号:EP3354666A1
公开(公告)日:2018-08-01
A polyacrylamide resin has at least one kind of a first unit represented by the following formulas (1) to (4) and a second unit represented by the following formula (5).
(In the above-described formulas (1) to (4), R1 represents a hydrogen atom, a methyl group, an ethyl group, or a benzyl group; R2 and R3 are independent and represent a hydrogen atom, a methyl group, an ethyl group, or a benzyl group; and X represents an anion.)
(In the above-described formula (5), R4 represents a hydrogen atom or a methyl group and R5 represents a hydrogen atom, an alkali metal ion, or an ammonium ion.)
聚丙烯酰胺树脂中至少有一种由下式(1)至(4)表示的第一单元和下式(5)表示的第二单元。
(在上述式(1)至(4)中,R1 代表氢原子、甲基、乙基或苄基;R2 和 R3 相互独立,分别代表氢原子、甲基、乙基或苄基;X 代表阴离子)。
(在上述式 (5) 中,R4 代表氢原子或甲基,R5 代表氢原子、碱金属离子或铵离子)。