发明名称 |
Deinking agent for regenerating waste printed paper comprising reaction product of compound having an OH group, a dicarboxylic acid, or an anhydride thereof |
摘要 |
A deinking agent for regenerating waste paper, which comprises a reaction product obtained by reacting a compound having an OH group, which is represented by the following (A) or (B) with a dicarboxylic acid or an anhydride thereof as an active ingredient: (A) a compound obtained by adding ethylene oxide and propylene oxide to a higher fatty acid having 8 to 22 carbon atoms in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles on average; or (B) an incomplete ester of a polyhydric alcohol, to which ethylene oxide and propylene oxide have been added in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles per OH group on average, and a higher fatty acid having 8 to 22 carbon atoms; is disclosed. With the use of this deinking agent, a deinked pulp having a high degree of whiteness and a small residual ink number can be obtained.
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申请公布号 |
US5304316(A) |
申请公布日期 |
1994.04.19 |
申请号 |
US19920946777 |
申请日期 |
1992.09.18 |
申请人 |
KAO CORPORATION |
发明人 |
URUSHIBATA, HIDEAKI;HAMAGUCHI, KOJI;KIMURA, AKIO;SUZUE, SHIGETOSHI |
分类号 |
C09D9/00;D21C5/02;(IPC1-7):C09K3/00 |
主分类号 |
C09D9/00 |
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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