FIRE RESISTANT POLYCARBONATE EXTRUDED ARTICLES WITH COAT Russian patent published in 2011 - IPC B32B27/00 B32B27/06 B32B15/00 B32B15/04 C23C14/20 

FIELD: process engineering.

SUBSTANCE: invention relates to multilayer article. First layer of said article represents layer optical dense in IR-band. Second layer comprises polymer making its substrate. Said first layer comprises 1-200 nm-thick layer to increase adhesion and is made from such metals as chromium, nickel or alloy thereof, or stainless steel, functional heat reflecting 5-1000 nm-thick layer made of metals different from those of first layer and selected from main groups from 1^st to 5^th or in subgroups from 1^st to 8^th of Periodic Table, or from alloys of, at least, two said metals or stainless steel, or it represents a layer of high-hardness substances. It may comprise, if required, a protective 1-200 nm-thick protective layer consisting, of at least, one component selected from group consisting of SiO₂, TiO₂, Al₂O₃, or layers from high-hardness substances. Order of layers arrangement corresponds to said order starting from layer that follows after substrate.

EFFECT: multilayer articles with higher fire resistance and strongly bonded layers.

5 cl, 4 tbl