| 摘要 |
A composition comprising a gas-expandable polymeric material and an activated hydrazodicarboxylate blowing agent, wherein the activator is selected from nickelbis(3,5-di-t-butyl-4-hydroxybenzoate), a mixture of 2-hydroxy-4-n-octoxybenzophenone and nickelbis(2-oxy-4-n-octoxybenzophenone), nickel stearate, nickel trifluoroacetylacetonate, [2,2'-thiobis(4-t-thiobis(4-t-octylphenolato)]nickel, nickelbis [O-ethyl-(3,5-di-t-butyl-4-hydroxybenzyl)phosphonate], nickelammoniumsulfate, ethylenediaminetetra(methylenephosphonic acid), and hexamethylenediaminetetra(methylenephosphonic acid).
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