Liquid epoxy resin hardeners and processes for their preparation

Details Liquid epoxy resin hardeners and processes for their preparation Liquid epoxy resin hardeners and processes for their preparation

1984-07-05

1985-07-16

Nielsen, Earl

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

548335, 528 94, 528117, 528407, C09K 300, H05B 3300

Patent

active

045295379

ABSTRACT:
Liquid epoxy resin hardeners are mixtures of 2-ethyl-4-methylimidazole, ethyldimethylimidazole and/or diethylmethylimidazole isomers which can also contain other alkylimidazoles, and can be produced by distillation of the products obtained in the dehydrogenation of 2-ethyl-4-methylimidazoline.

REFERENCES:
patent: 2847417 (1958-08-01), Erner
patent: 3037028 (1962-05-01), Green
patent: 3177223 (1965-04-01), Erner
patent: 3489695 (1970-01-01), Green
patent: 4069203 (1978-01-01), Carey et al.
patent: 4417010 (1983-11-01), Shimp
Hofmann, "Imidazoles and Derivatives", p. 328.

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