C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/5901, 261/56
C08J 3/02 (2006.01) C04B 24/28 (2006.01) C08G 59/50 (2006.01) C08J 3/03 (2006.01) C08L 63/00 (2006.01)
Patent
CA 1244565
ABSTRACT OF THE DISCLOSURE An epoxy resin-diammonium salt emulsion is based on a liquid epoxy resin, water, an emulsifier and a latent curing agent, wherin the emulsifier is (a) a polyvinyl alcohol obtained by saponification of polyvinyl acetate with a degree of hydrolysis of at least 70% and a molecular weight of at least 5,000, (b) a polyoxazoline having a molecular weight of 10,000-100,000, and/or (c) a copolymer of N-vinylpyrrolidone with - vinyl esters of mono- or dibasic carboxylic acids of up to 6 carbon atoms, - (meth)acrylic esters of mono- and dihydric alcohols of up to 6 carbon atoms, - maleic, fumaric, crotonic acid and/or - styrene and wherein the latent curing agent is the salt from a (a) diamine of the formula H2N-CH2-R-NH2 or H2N-R-CH2-R-NH2 wherein R is - an optionally substituted C4-9-alkylene residue, - an optionally substituted C6-9-cyclo- alkylene residue, or - a C7-9-aralkylene residue, with (b) optionally hydroxy-group-containing, aliphatic, cycloaliphatic, or aromatic mono- or dicarboxylic acids of up to 12 carbon atoms.
470130
Chemische Werke Huls Aktiengesellschaft
Degussa-Huls Aktiengesellschaft
Fetherstonhaugh & Co.
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