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PAPER SIZE COMPRISING AN ALKYL KETENE DIMER AND/OR ALKENYL SUCCINIC ACID ANHYDRIDE AND A DEGRADED LIQUID CATIONIC STARCH AND PAPER SIZING PROCESS
PAPER SIZE COMPRISING AN ALKYL KETENE DIMER AND/OR ALKENYL SUCCINIC ACID ANHYDRIDE AND A DEGRADED LIQUID CATIONIC STARCH AND PAPER SIZING PROCESS
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机译:包含烷基酮二聚体和/或亚烷基癸二酸酸酐的纸的尺寸以及液态阳离子淀粉的降解和纸的尺寸
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PCT No. PCT/EP97/01308 Sec. 371 Date Aug. 19, 1998 Sec. 102(e) Date Aug. 19, 1998 PCT Filed Mar. 14, 1997 PCT Pub. No. WO97/35068 PCT Pub. Date Sep. 25, 1997Disclosed are a paper size consisting essentially of a) alkyl ketene dimer and/or alkenyl succinic acid anhydride; b) degraded, liquid cationic starch having a cationic charge density of 0.5 to 3.5 meqv/g, a degree of substitution of more than 0.1 and a viscosity of less than 10000 cps (30% by weight solution in water at 25 DEG C.); and c) water, and a process for making paper products in which this paper size is added to the pulp. The invention allows the production of AKD and/or ASA sizes on-site in paper plants using simple mixing equipment.
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