C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/140, 400/741
C08G 18/67 (2006.01) A01N 39/02 (2006.01) A01N 39/04 (2006.01) C07C 59/68 (2006.01) C07D 295/088 (2006.01) C07D 295/185 (2006.01) C08L 75/12 (2006.01)
Patent
CA 1127347
ABSTRACT OF THE DISCLOSURE Process of producing, and binders water soluble upon neutralization with acids which are depositable at the cathode of an electrodeposition system and can be crosslinked through thermic polymerization without additional crosslinking compo- nents characterized in that (A) 1 mole of an isocyanate having the formula OCN-R-(NCO)n in which R is an aromatic, aliphatic or cycloaliphatic hydrocarbon radical and n is 1 or 2, is re- acted at from 0 - 50°C., with (a) from 0.1 to 0.5 moles, if n = 1, or 0.1 to 1.0 moles, if n = 2, of a tertiary dialkylalkanol amine, and sub- sequently with (b) from 0.5 to 0.9 moles, if n = 1, or 1.0 to 1.9 moles, if n = 2, of a compound carrying one free hydroxy group and 1 - 3 CH2 = CRl groups, where Rl = H or CH3, and (B) the intermediate resulting from (A) carrying an average of 1 free isocyanate group is reacted at from 10 - 100°C., with the hydroxy groups of an epoxy resin/amine adduct until an iso- cyanate value of 0 is obtained, the quantities between the com- ponents being chosen in order that the final product, in 1000 molecular weight units, carries at least 0.5 chain end or side chain double bonds and at least 0.15 basic nitrogen atoms. The reaction proceeds in a single kettle to produce compounds having superior dispersibility and stability in water,and are easily applied as a binder.
342422
Honig Helmut
Pampouchidis Georgios
Fetherstonhaugh & Co.
Vianova Kunstharz Aktiengesellschaft
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