One component waterborne coating with improved chemical resistance
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United States of America Patent
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Oct 15, 2002
Issued Date -
N/A
app pub date -
Sep 22, 2000
filing date -
Aug 27, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coating composition particularly suitable for coating poly(phenylene oxide) comprises aqueous medium-dispersed particles of: A) between about 30 and about 35 wt %, of a first styrene-acrylic polymer formed of monomers, between about 50 and about 80 mole % of which monomers are styrene or substituted styrene monomers, between about 2 and about 15 mole percent of which monomers are acrylonitrile, and between about 18 and about 48 mole percent of which are acrylic monomers, said first styrene-acrylic polymer having an acid number of about 15 or below; B) between about 30 and 35 wt %, of an acrylic second polymer formed of monomers, at least about 90 mole percent of which monomers are acrylate monomers, balance other .alpha., .beta.-ethylenically unsaturated monomers, said acrylic second polymer having an acid number between 0 and about 25; and C) between about 30 and about 40 wt % of an acrylic-urethane hybrid polymer.
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- C08L Class
- 3.88 % this patent is cited more than
- 23 Age