COMPLEX STABILIZING AGENT OF CHLOR-CONTAINING POLYMERS Russian patent published in 1997 - IPC

FIELD: chlor-containing polymeric materials. SUBSTANCE: complex stabilizing agent has, wt.-%: arylsulfamidecaproic acid, 56-70; calcium oxide, 4.2-6.3; and zinc stearate, the balance (1) or arylsulfamidecaproic acid, 28-55; lead oxide, 20-47; and calcium stearate, the balance (2). Additionally, complex stabilizing agent has 4-8 mas. p. p. maleic anhydride per 100 mas. p. p. complex stabilizing agent. At processing chlor-containing polymers using the proposed stabilizing agent materials exhibit the following properties: degree of the parent color retaining, 0.82-0.96; thermostability, 45-95 min; yellowness coefficient, 13-24%; transparency coefficient, 80-92%; extruding output, 130-170 g/min (for materials with the use of complex stabilizing agent of composition (1) and fracture strength, 480-960 bending cycles (for materials with the use of complex stabilizing agent of composition (2)). EFFECT: enhanced quality and properties of agent. 2 cl, 1 tbl