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Expandable coating composition, coated product, and production method for expanded coating film

  • US 20030191207A1
  • Filed: 03/24/2003
  • Published: 10/09/2003
  • Est. Priority Date: 04/08/2002
  • Status: Active Grant
First Claim
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1. An expandable coating composition which can produce an expanded coating film and which contains (a) a polyol compound, (b) an isocyanate compound, and (c) water;

  • the (a) polyol compound reacts with a part of the (b) isocyanate compound, thereby yielding polyurethane resin;

    the remaining (b) isocyanate compound reacts with the (c) water, thereby yielding carbon dioxide;

    the polyurethane resin has a breaking strength of 5 N/cm2 or greater and less than 200 N/cm2 in a case in which an elongation percentage thereof is 100% or less; and

    the polyurethane resin has a breaking strength of 5 N/cm2 to 1,500 N/cm2 in a case in which an elongation percentage thereof is more than 100%.

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