发明名称 |
METHOD OF EMULSIFYING SUBSTITUTED CYCLIC DICARBOXYLIC ACID ANHYDRIDE SIZING AGENTS AND EMULSION FOR PAPERMAKING |
摘要 |
A method of emulsifying a substituted cyclic dicarboxylic acid anhydride sizing agent such as alkenyl succinic anhydride (ASA), primarily for papermaking operations, uses a cationic reaction polymer synthesized from an epihalohydrin and a polyamine, preferably a polyalkyleneamine. The synthesis of the reaction product is controlled to obtain a polymer end product viscosity, by Brookfield, ranging between 50 and 300 cps at 25 .degree.C and at 30 to 35% solids. Alternatively, the preferred cationic polymers can be described as having an intrinsic viscosity value in a 0.2M NaCl solution of 0.18 to 0.35 dL/gm at 30 .degree.C. The polyamine-epihalohydrin polymers can also be optionally used in combination with a surfactant for further emulsifying of the ASA size.
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申请公布号 |
CA2502795(A1) |
申请公布日期 |
2006.05.04 |
申请号 |
CA20052502795 |
申请日期 |
2005.03.30 |
申请人 |
KEMIRA CHEMICALS, INC. |
发明人 |
COTTER, TERRENCE EDWARD;KUROWSKY, STEPHEN R.;FREEMAN, GARY M. |
分类号 |
D21H17/00;B01F17/16;D21H21/16 |
主分类号 |
D21H17/00 |
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