Composition for floor polish
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United States of America Patent
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Jun 15, 1999
Grant Date -
N/A
app pub date -
Aug 22, 1995
filing date -
Sep 20, 1994
priority date (Note) -
Expired
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Abstract
Compositions for floor polish. Specifically, a composition for floor polish made by the two-step process including the steps of (1) providing water-borne polyurethane resin, preferably having 2-20 acid functional groups per urethane and having an acid value of 15-200 and a molecular weight of 10,000 to 1,000,000, and (2) reacting the polyurethane resin with a calcium compound, not complexed with amines or ammonia, in an amount sufficient to form 0.05 to 0.9 chemical equivalents of calcium crosslinkages relative to the acid functional groups of the polyurethane resin. The invention also includes a floor polish made by a three-step process including the steps of (1) providing an emulsion of a water-borne polyurethane resin as described above, (2) adjusting the pH of the emulsion to a pH value within the range of 4.5 to 9 by adding a base to the emulsion, and (3) reacting the water-borne polyurethane resin with a calcium compound as described above. The floor polish according the present invention has a number of superior properties, including gloss, recoatability, removability, detergent resistance, wear resistance and heal mark resistance.
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