C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
18/1107, 400/792
C08G 59/68 (2006.01) C08G 59/22 (2006.01) C08G 59/70 (2006.01) H01B 3/40 (2006.01)
Patent
CA 1311325
3-15716/1+2/+/CGW 13 Curable mixtures based on diglycidyl compounds and metal complex compounds Abstract Curable mixtures, containing, (a) at least one bisphenol diglycidyl ether based on bis- phenol A, hydrogenated bisphenol A or bisphenol F, (b) as a curing catalyst, a colourless or slightly yellow solution of a metal complex compound of the formula I [Me(H2O)x(Lm)y]2+ (A?)2 (I), in which Me is a divalent metal from the group comprising Zn, Cd, Sn, Pb, Ca or Mg, Lm is a saturated cyclic ether having 5 to 7 ring atoms, a linear or cyclic saturated aliphatic ether compound or a mixture of the ether and the ether compound, the ether and the ether compound having a boiling point of at least 60°C, and A is an anion of the formula BF4?, PF6?, AsF6?or SbF6? x is the number 4, 5 or 6 and y is zero or the number 1 or 2, the sum of x and y always being 6, the complex being dis- solved in an excess of the corresponding ether or the corre- sponding ether compound, (c) a sterically hindered mononuclear or polynuclear phenol, a phosphite of the formula II or III Image (II) or Image (III), in which R1, R2 and R3 independently of one another are each phenyl, alkyl-substituted phenyl having 1-12 carbon atoms in the alkyl radical or alkyl having 1 to 20 carbon atoms, or a mixture of a sterically hindered mononuclear or polynuclear phenol and a phosphite of the formula II or III and, if appropriate, (d) as a reactive diluent, up to 25 parts by weight, rela- tive to 100 parts by weight (a), of at least one diglycidyl ether of 1,4-butanediol, 1,6-hexanediol or neopentyl glycol or a cresol glycidyl ether and, if appropriate, (e) as an adhesion promoter, an organic silane, titanate or zirconate, can be cured rapidly and give transparent mould- ings which are resistant to yellowing. They are particu- larly suitable for sheathing or embedding opto-electronic components.
527378
Baumann Dieter
Horner Hans-Peter
Rabener Claus Willi
Baumann Dieter
Fetherstonhaugh & Co.
Horner Hans-Peter
Rabener Claus Willi
Vantico Ag
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