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

C - Chemistry – Metallurgy – 07 – D

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C07D 407/04 (2006.01) C07D 207/40 (2006.01) C07D 307/89 (2006.01) C08G 59/40 (2006.01) C08G 59/42 (2006.01)

Patent

CA 1051435

Abstract of the Disclosure The invention relates to new imidyl compounds of the formula Ia and isoimidyl compounds of the formula Ib Image (Ia) Image (Ib) in which A denotes a defined 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.

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