C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/2, 402/268,
C08G 59/40 (2006.01) C08G 12/00 (2006.01) C08G 12/02 (2006.01) C08G 12/46 (2006.01) C08G 59/14 (2006.01) C08G 65/26 (2006.01) C09D 5/44 (2006.01)
Patent
CA 1180493
Abstract of the Disclosure: Polyadducts, free from epoxide groups, are obtained from ammonia and epoxide compounds by reacting 1 mole of ammonia with from 1.2 to 2.0 equivalents of epoxide, so that if diepoxide com- pounds are used products of the general formula (I) Image are obtained, whilst if triepoxides and/or tetraepoxide compounds are used, by themselves, or together with diepoxide compounds, products of the general formula II Image (II) are produced; in these formulae, the E1's are identical or different hydroxyl-containing divalent radicals and the E2's are identical or different hydroxyl-containing trivalent or tetravalent radicals, resulting from the opening of the oxirane rings of epoxide compounds con- taining two, three or four epoxide groups in the mole- cule, n1, n3 and n5 are from 0 to 3, n2 and n4 are from 1 to 3 and X is 0 or 1, and one or more of the divalent radicals E1 in the general formula (II) may or may not - 1 - be replaced by polyvalent radicals E2. The novel polyadducts can be modified by reaction with aldehydes, ketones, monoepoxide compounds, carboxy- lic acids, carboxylic acid esters or isocyanates, or by protonation with an acid, and may be used, for example, for the cathodic electrocoating of metallic articles.
348293
Gulbins Erich
Kempter Fritz E.
Schenck Hans-Uwe
Schupp Eberhard
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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