C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/4701, 400/59
C08G 59/06 (2006.01) C08G 59/04 (2006.01) C08G 59/40 (2006.01) C08J 3/02 (2006.01) C09D 163/00 (2006.01)
Patent
CA 1300782
HOE 86/F 315 ABSTRACT OF THE DISCLOSURE Stable aqueous epoxy resin dispersion, process for the preparation thereof and use thereof The invention relates to stable epoxy resin dispersions and also a process for the preparation thereof and the use thereof, in particular for coatings. The epoxy resin dispersions which are remarkable, in particular, for good storage stability with a low content of organic solvents at the same time and yield coatings with good surface pro- perties, contain, in addition to water, optionally small quantities of organic solvents and also optionally usual additives, epoxy resin hardeners and the like, as an essential constituent a condensation product of a) 50 to 80 % by weight of an epoxy compound containing at least two epoxy groups per molecule and having an epoxy equivalent of 100 to 2,000, b) 35 to 17 % by weight of an aromatic polyol and c) 15 to 3 % by weight of a condensation product of an aliphatic polyol with a molecular weight (Mw) of 200 to 20,000 and an epoxy compound containing at least two epoxy groups per molecule and having an epoxy equivalent of 100 to 2,000, the equivalent ratio of the OH groups to the epoxy groups being 1:0.85 to 1:3.5 and the epoxy equivalent of said condensation product being between 200 and at least 50,000.
554785
Becker Wilhelm
Godau Claus
Fetherstonhaugh & Co.
Solutia Germany Gmbh & Co. Kg
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