Expandable coating composition, coated product, and production method for expanded coating film
First Claim
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%.
2 Assignments
0 Petitions
Accused Products
Abstract
An expandable coating composition, yields a coating film having elasticity, a soft feeling, and strength which are sufficient for an instrument panel of an automobile by simple processes. An expandable coating composition yields an expanded coating film and 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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Citations
5 Claims
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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;
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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%. - View Dependent Claims (2, 3)
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4. A production method for an expanded coating film comprising the steps of:
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coating an expandable coating composition containing (a) a polyol compound, (b) an isocyanate compound, and (c) water;
reacting the (a) polyol compound with a part of the (b) isocyanate compound, thereby yielding polyurethane resin, 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%;
reacting the remaining (b) isocyanate compound with the (c) water, thereby yielding carbon dioxide. - View Dependent Claims (5)
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Specification