发明名称 POLYMER COMPOSITION FOR PEROXIDE BLEACHING OF CELLULOSIC FIBRE MATERIAL AND PROCESSES FOR PEROXIDE BLEACHING
摘要 The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fibre material, said composition being in the form of a stable aqueous polymer solution obtained by bringing in an aqueous medium a first polymer (A) comprising a partly or totally acidic homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, into contact with a second polymer (B) comprising a po9lylactone of a poly-alfa-hydroxyacrylic acid in solid form or as a moist powder or as a slurry, said polymer solution having a pH of at most 8, The invention also relates to peroxide bleaching processes.
申请公布号 CA2509692(C) 申请公布日期 2011.12.13
申请号 CA20042509692 申请日期 2004.01.09
申请人 KEMIRA OYJ 发明人 AHLGREN, JONNI;PAREN, AARTO;JAEKAERAE, JUKKA;HAERMAE, TIMO;RENVALL, ILKKA
分类号 C08L33/02;C01B15/037;C08L67/04;C11D3/37;C11D3/39;D21C9/16 主分类号 C08L33/02
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