Invention Grant
US3846348A High impact, fire retardant, rigid polyurethane foam compositions having high resistance to boiling water and products therefrom 失效
高冲击强度,阻燃剂,刚性聚氨酯泡沫组合物具有高耐水性及其制品

High impact, fire retardant, rigid polyurethane foam compositions having high resistance to boiling water and products therefrom
Abstract:
Rigid polyurethane foam is formed by processes employing an organic compound or mixture of organic compounds that are nonreactive to isocyanate groups, which organic compound or mixture of organic compounds has an average molecular weight of at least 500 and contains chlorine, bromine and phosphorus. The rigid polyurethane foam moldings obtained by the processes are flameresistant while being resistant to impact and boiling water.
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