Coating for drinking water pipelines
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United States of America Patent
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-
May 4, 2004
Grant Date -
Apr 18, 2002
app pub date -
Feb 12, 2001
filing date -
Aug 8, 2000
priority date (Note) -
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Abstract
A two-part coating system comprises a first part comprising one or more aliphatic polyisocyanates, optionally blended with one or more 'amine reactive' resins and/or non reactive resins, and a second part comprising one or more aromatic polyamines optionally blended with one or more oligomeric polyamines, such that the two parts, when mixed together and applied to the internal surfaces of pipelines, form a rapid setting impervious coating suitable for contact with drinking water.
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