Imidyl- and isoimidyl-phthalic anhydrides, process for their man

Details Imidyl- and isoimidyl-phthalic anhydrides, process for their man Imidyl- and isoimidyl-phthalic anhydrides, process for their man

1978-07-10

1979-07-03

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 94, 528114, 528322, 528327, 525507, C08G 5942

Patent

active

041600819

ABSTRACT:
The invention relates to new imidyl compounds of the formula Ia and isoimidyl compounds of the formula Ib ##STR1## IN WHICH A denotes a divalent organic radical, especially an ethenylene, ethylene or propylene group. These compounds serve as curing agents for epoxide resins and give cured products with good mechanical and electrical properties.

REFERENCES:
patent: 3627704 (1971-12-01), Moran et al.
patent: 3627730 (1971-12-01), Moran et al.
patent: 3725345 (1973-04-01), Bargain

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