POLYMERIC COMPOSITION USED AS STRUCTURAL MATERIAL Russian patent published in 2007 - IPC C08L67/02 

FIELD: organic chemistry, polymers.

SUBSTANCE: invention relates to polybutylene terephthalate-base compositions used widely as a structural material. Invention proposes adding polyarylate oximate (PAO-1) as a modifying agent (99.0-99.95 wt.-%) based on 4,4'-diacetyldiphenyl ester diketoxime and tere- and isophthalic acid dichloroanhydrides (0.05-1 wt.-%) of the formula:

wherein Ar means to polybutylene terephthalate-base composition with the value of reduced viscosity in tetrachloroethane 0.75-0.81 dl/g/ Invention provides enhancing heat and thermal stability, thermooxidative stability of polybutylene terephthalate during its processing, improving its exploitation qualities, increasing electric strength, expanding temperature range of processing and temperature range of exploitation of articles made on base of polybutylene terephthalate.

EFFECT: improved and valuable technical properties of composition.

1 cl, 1 tbl, 2 dwg, 4 ex