POLYISOCYANURATE FOAM AND PREPARATION METHOD THEREFOR
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United States of America Patent
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Jul 21, 2016
app pub date -
Oct 1, 2014
filing date -
Oct 4, 2013
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Abstract
Provided is a polyisocyanurate foam formed by polymerizing and foaming a composition comprising: a polyol-based compound, an isocyanate-based compound and a solid flame retardant, wherein a viscosity of the polyol-based compound is 1,000 cps to 100,000 cps at 25° C. In addition, provided is a preparation method for a polyisocyanurate foam, comprising: (a) mixing and stirring a polyol-based compound having a viscosity of 1,000 cps to 100,000 cps at 25° C. and a solid flame retardant; and (b) mixing and stirring the mixture obtained from step (a) with an isocyanate-based compound to polymerize and foam polyisocyanurate.
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