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OwnerEvgeny M. Surzhenko, Bronislav F. Basilaev +12inventors
InventorsEvgeny M. Surzhenko, Bronislav F. Basilaev, Roman V. Molotkov, Alexandr S. Madorsky, Grigory B. Shalun, Valentina B. Golynkina, Margarita A. Ershova, Irina P. Eliseeva, Nina E. Trukhtenkova, Sergei M. Gurylev, Diana L. Kopetskaya, Evgeny Y. Pechko, Albert S. Khlamenko, Viktor V. Magnitsky
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A laminated plastic material comprises surface layers of paper impregnated with amino formaldehyde resin and inner layers of paper containing a flame retardant material and impregnated with phenol formaldehyde resin. The flame retardant material is a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases and contains, in weight percent: ______________________________________ P.sub.2 O.sub.5 total 37 to 63 P.sub.2 O.sub.5 water-soluble 0 to 6 NH.sub.3 3.5 to 11 MO 18 to 43 ______________________________________ where MO is at least one metallic oxide, the flame retardant material content ranging from 4 to 8 weight percent, with the following ratio of the laminated plastic components, in weight percent: ______________________________________ paper for surface layers 9 to 26 paper for inner layers 26 to 49 phenol-formaldehyde resin 16 to 30 amino-formaldehyde resin 5 to 26 ______________________________________
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing in weight percent:
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing, in weight percent:
Dependencies are inferred from the claim text.