Polybutylene terephthalate molding compositions which are resist

Details Polybutylene terephthalate molding compositions which are resist Polybutylene terephthalate molding compositions which are resist

1976-04-19

1977-12-20

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 529

Patent

active

040641031

ABSTRACT:
Stabilized polyester molding compositions in which the stabilizer is a carbodiimide of the formula ##STR1## where R is hydrogen, alkyl, halogen or nitro, at least one of the substituents R in the ortho-position to the carbodiimide group must differ from hydrogen, and the carbodiimide molecule contains, as substituents R, 2 alkyl groups and 2 nitro groups, or from 4 to 6 chlorine atoms, or 2 alkyl groups and from 4 to 6 chlorine atoms, or 2 chlorine atoms and 2 nitro groups, or 4 chlorine atoms and 2 bromine atoms.

REFERENCES:
patent: 3193523 (1965-07-01), Neumann et al.
patent: 3547873 (1970-12-01), Weissermel et al.
patent: 3956214 (1976-05-01), Tate et al.
Modern Plastics Encyclopedia -- 1974-1975, pp. 500 and 502.

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