LOW-DENSITY FOAM AND FOAM-BASED OBJECTS
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Jan 27, 2012
filing date -
Jan 27, 2012
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Abstract
According to one embodiment, the disclosure provides a foam-based object containing a foam having a density of 30 kg/m3 or less. The foam contains a base polyol, a filled polyol, and an additive polyol. The foam lacks a chain extender or crosslinker. In another embodiment, the foam has a hardness loss of less than 15% in a hardness loss test. According to another embodiment, the disclosure provides an initial formulation containing a base polyol, a filled polyol, an additive polyol, and a catalyst, but lacking a chain extender or crosslinker. The initial formulation is operable to form a foam having a density of 30 kg/m3 or less upon reaction with an isocyanate. A fourth embodiment provides a method of forming a foam by combining an isocyanate with such an initial formulation to produce a foam having a density of 30 kg/m3 or less and lacking a chain extender or crosslinker.
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