| 摘要 |
<p>PURPOSE:To obtain the title deinking agent consisting essentially of a specific alkylene oxide adduct of dicarboxylic acid (monoester), having excellent permeability, releasing property, foaming property and aggregating property of ink and capable of providing regeneration pulp having high whiteness degree and reduced in residual ink. CONSTITUTION:The aimed deinking agent consisting essentially of an alkylene oxide adduct of dicarboxylic acid (monoester) expressed by the formula [either one of X is COO(AO)nH (AO is alkylene oxide; n is 1-200) and the other is H or CH3; Y is (AO)mH (m is 1-200) or R (R is 1-18C alkyl)].</p> |
