| 摘要 |
Flameproofing of various combustible materials, particularly wood-shake shingles used in roofing of houses and tar paper sheets, by coating and impregnating such combustible materials with a liquid composition comprising a fire or flame retardant, exemplified by phosphorus- and halogen-containing organic compounds, a liquid curable organo binder, a curing agent or, more particularly, a photoiniator. After the coating and/or impregnation, curing is effected by either sunlight or ultraviolet light or ionizing radiation.
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