Acid anhydride complex and process for producing same, and compo

Details Acid anhydride complex and process for producing same, and compo Acid anhydride complex and process for producing same, and compo

1991-07-02

1993-02-02

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

549241, C08K 515, C07D49302

Patent

active

051838389

ABSTRACT:
An acid dianhydride complex which is characterized in anti-hydrolysis, good stability, and high solubility in an organic solvent, is prepared by a reaction of a basic organic compound having a donor number of at least 20 and being free from an active hydrogen atom in the molecule and a carboxylic dianhydride compound.

REFERENCES:
patent: 4271079 (1981-06-01), Maeda et al.
G. M. Bower and L. W. Frost, "Aromatic Polyimides", Journal of Polymer Science: Part A, 1, 3135-3150 (1963).

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