MELT VISCOSITY-CONTROLLED FLAME RETARDANT POLYBUTYRENE TEREPHTHALATE COMPOSITION AND MANUFACTURE

Title:

MELT VISCOSITY-CONTROLLED FLAME RETARDANT POLYBUTYRENE TEREPHTHALATE COMPOSITION AND MANUFACTURE

Document Type and Number:

Japanese Patent JPS5823849

Kind Code:

A

Abstract:

There is provided flame retarded polybutylene terephthalate compositions of controlled melt viscosity and a process for preparing such compositions, particularly polybutylene terephthalate compositions which are flame retarded with a flame retardant comprising a brominated aromatic polycarbonate, such as an aromatic polycarbonate containing units of bisphenol-A. The process comprises adding to the flame retarded polybutylene terephthalate during extrusion compounding trace amounts of an aliphatic diol, particularly 1,4-butanediol. Such addition results in lowering the melt viscosity of the flame retarded polybutylene terephthalate compositions, and in novel flame retarded polybutylene terephthalate compositions of controlled melt viscosity.

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Inventors:

RONARUDO RII DEIETSUKU
RANDORUFU KAARU FUITSUKU

Application Number:

JP11703882A

Publication Date:

February 12, 1983

Filing Date:

July 07, 1982

Export Citation:

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Assignee:

GEN ELECTRIC

International Classes:

C08K5/053; C08L67/00; C08L69/00; C08L67/02; (IPC1-7): C08K5/05; C08L67/02

Attorney, Agent or Firm:

Tokunji Ikunuma

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