FRICTION-DESTINATION POLYMER COMPOSITION Russian patent published in 2003 - IPC

FIELD: polymer materials. SUBSTANCE: polymer composition designed for parts operated in brake assemblies of mechanisms and machines is prepared by mixing following constituents, wt %: rubber 14.0-16.0, dolomite flour 25.0-30.0, hexol 1.0- 2.0, barite concentrate 11.4-15.9, basalt yarn 7.0-10.0, phenol-formaldehyde resin 3.0, vulcanization group 2.0-4.0, red iron or chalk and lithopone - the balance. Parts are manufactured using hot molding technique. EFFECT: increased mechanical strength under normal conditions and at 300 C. 2 cl, 2 tbl