| http://www.w3.org/ns/prov#value | - Examples of suitable blowing agents are reactive blowing agents, such as water, whichgenerates carbon dioxide by reaction with polyisocyanate, and the like; and volatile blowing agents, for example, halogen-substituted aliphatic hydrocarbons, such as methylene chloride, chloroform, ethylidene dichloride, vinylidene chloride,trichlorofluoromethane, dichlorofluoromethane and the like; low-boiling hy
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