C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 59/02 (2006.01) C08G 59/04 (2006.01) C08G 59/16 (2006.01) C09D 5/44 (2006.01) C09D 17/00 (2006.01) C25D 13/06 (2006.01)
Patent
CA 2101346
Abstract of the Disclosure: Epoxy resins obtainable by reacting A) a polyfunctional epoxide, which carries on average 1.5 to 2.5 epoxy groups per molecule and has an epoxide equivalent weight of from 100 to 2000, with - based on 1 mol of epoxy groups - B) from 0.1 to 0.5 mol of an alkylphenol, the alkyl groups of which carry from 6 to 20 carbon atoms, and C) from 1 to 100 mmol of a polyoxyalkylenediol obtained from 1,2 propylene oxide, or of a copolymer obtained from 1,2-propylene oxide and other alkylene oxides, which has an average molecular weight of from 200 to 5000 and, on average, from 1 to 4 sulfonic acid groups bonded to methyl groups per molecule, and also D) from 0.2 to 0.3 mol of a diol, which is d1) a phenolic diol and/or d2) a polyoxyalkylenediol which has an average molecular weight of from 200 to 5000, with the proviso that the reaction product has an epoxide equivalent weight of from 1000 to 5000, can be converted to pigment resins suitable for electrodeposition coating and pigment pastes can then be prepared from said resins.
Huemke Klaus
Sinn Christian
Basf Lacke + Farben Aktiengesellschaft
Robic
LandOfFree
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