【発明の名称】環状ポリアリーレートオリゴマーの製造法

Title:

【発明の名称】環状ポリアリーレートオリゴマーの製造法

Document Type and Number:

Japanese Patent JPH0662604

Kind Code:

B2

Abstract:

Cyclic polyarylate oligomer compositions are prepared by the reaction of an aromatic dicarboxylic acid halide, such as isophthaloyl chloride or terephthaloyl chloride, with a water-soluble salt of a dihydroxyaromatic compound, such as bisphenol A disodium salt. Freshly prepared solutions of the halide in an organic liquid such as methylene chloride, and of the salt in water, are simultaneously introduced into an organic liquid containing a catalytic amount of at least one quaternary ammonium salt having a single alkyl group containing about 8-20 carbon atoms and having not more than 5 additional carbon atoms. The dihydroxyaromatic compound salt is employed in the amount of at least about 3% in excess of stoichiometric.

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Inventors:

TOOMASU RINKU GUGENHEIMU
SHARON JIOI MAKOOMITSUKU
ARISU MARII KORII

Application Number:

JP15010890A

Publication Date:

August 17, 1994

Filing Date:

June 11, 1990

Export Citation:

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Assignee:

GEN ELECTRIC

International Classes:

C07D321/00; C07D323/00; C08G63/19; C08G63/181; C08G63/195; C08G63/79; C08G63/87; (IPC1-7): C07D321/00; C07D323/00; C08G63/181

Domestic Patent References:

JP63152621A

Attorney, Agent or Firm:

Tokunji Ikunuma

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