Starch graft copolymer, detergent builder composition including the same, and production method thereof
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United States of America Patent
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N/A
Issued Date -
Jan 9, 2003
app pub date -
May 13, 2002
filing date -
Jun 5, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A graft copolymer of acrylic acid and maleic acid (or anhydride) grafted onto starch, a detergent builder composition containing the graft copolymer and a method of preparing the graft copolymer. These novel starch graft copolymers are highly water-soluble and biodegradable, have strong chelation ability to calcium ions and magnesium ions, and strong pH buffering ability. The composition has no phosphate and aluminosilicate. The composition has excellent anti-redeposition, building, anti-filming, dispersing, threshold crystal-inhibiting and enzyme performance-improving properties.
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