| http://www.w3.org/ns/prov#value | - The polyisocyanurate and polyurethane foams can be prepared by mixing together the organic polyisocyanate with the isocyanate-reactive compound (e.g., polyol) and other foam-forming ingredients as required, including the filler and dispersing agent, at temperatures ranging from about 0??? C. to 150??? C. Any order of mixing is acceptable provided that the filler is homogeneously blended into the f
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