Method of preparing coatings

Details Method of preparing coatings Method of preparing coatings

1976-11-04

1978-11-28

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260 334EP, 260 336EP, 260830TW, 526273, 528 86, 528408, C08L 6300, C08G 5906

Patent

active

041275624

ABSTRACT:
A method of producing coatings on the basis of two-component systems composed of 1,2-epoxy compounds having at least one 1,2-epoxy group in the molecule, plus cyclic amidines and the conventional paint additives, which are thermosetting at 100.degree. to 200.degree. C, the said method being characterized in that one uses as cyclic amidines imidazoline or tetrahydropyrimidine derivatives of the general formula ##STR1## IN WHICH N EQUALS 2 OR 3; M EQUALS 1 OR 2; R.sub.1, R.sub.2 and R.sub.3 are identical or different, and represent hydrogen, alkyl, aryl, aralkyl, cycloalkyl, heterocyclics, ether, theoether, halogen, --N(R).sub.2, nitro groups, keto groups, ester groups or carbonamide groups, and R represents alkyl, alkylene, an aryl, aralkyl, cycloalkyl or heterocyclic radical, substituted if desired with halogen, nitro groups, alkyl groups, alkoxy groups or amino groups, and, when m equals 1, represents also hydrogen, a plurality of radicals being able to be joined, also by hetero atoms such as O, N or S, if desired.

REFERENCES:
patent: 3218274 (1965-11-01), Boller et al.
patent: 3549592 (1970-12-01), Godfrey et al.
patent: 3896082 (1975-07-01), Rensmann et al.
Handbook of Epoxy Resins, Lee & Neville, 1968 (chpt. 24, pp. 29-34).

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