Compositions of vinyl aromatic polymers and synthetic rubber stabilized with tetra-(2-hydroxyalkyl) alkylene diamines

Claim 1

A COMPOSITION OF MATTER COMPRISING A POLYMERIC BODY, THE ESSENTIAL INGREDIENTS OF WHICH ARE A MECHANICAL BLEND OF FROM 60 TO 95 PERCENT BY WEIGHT OF A NORMALLY HARD THERMOPLASTIC VINYL AROMATIC POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYMERIZED MONOVINYL AROMATIC HYDROCARBONS AND COPOLYMERS OF AT LEAST 70 PERCENT BY WEIGHT OF AT LEAST ONE MONOVINYL AROMATIC HYDROCARBON AND NOT MORE THAN 30 PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, ALPHA-METHYL STYRENE, AND ALKYL ESTERS OF ACRYLIC ACID AND METHACRYLIC ACID CONTAINING FROM 1 TO 4 CARBON ATOMS AIN THE ALKYL GROUP, AND FROM 40 TO 5 PERCENT OF A SOFT RUBBERY BUTADIENE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYMERIZED BUTADIENE AND COPOLYMERS OF AT LEAST 40 PERCENT BY WEIGHT OF BUTADIENE AND NOT MORE THAN 60 PERCENT OF STYENE, INTIMATELY INCORPORATED WITH ONE ANOTHER AND AS A STABILIZING AGENT THEREFOR, FROM 0.1 TO 5 PERCENT, BASED ON THE SUM OF THE WEIGHTS OF THE POLYMERIC INGREDIENTS, OF AT LEAST ONE N,N,N'',N''-TETRA-(2-HYDROXYALKYL) ALKYLENE DIAMINE HAVING THE GENERAL FORMULA: