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US4557969A Sheet-like packing material of melamine or phenol resin fibers 失效
三聚氰胺或酚醛树脂纤维的片状包装材料

Sheet-like packing material of melamine or phenol resin fibers
摘要:
A sheet-like packing material consisting ofA. from 2 to 90% by weight of melamine resin or phenol resin fibers and/or fibrids,B. from 5 to 90% by weight of finely divided inorganic fillers, preferably cement, andC. from 2 to 40% by weight of organic binders, preferably rubber, with or withoutD. from 0.1 to 50% by weight of thermoplastic fibrids, the percentages summing to 100,possesses low gas permeability, high compressive creep strength and advantageous compressibility, resilience and swelling behavior.
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