C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/7304
C08K 5/54 (2006.01) B22C 1/20 (2006.01) C08L 61/10 (2006.01) C08L 61/32 (2006.01)
Patent
CA 1157184
ABSTRACT OF THE DISCLOSURE: The invention relates to a binding agent, for an inorganic oxidic material, comprising an aminosilane and a thermosetting resin, said resin being selected from the group consisting of a phenol-formaldehyde resin and a condensation product of furfuryl alcohol with a urea-formaldehyde pre- condensate, the improvement wherein said aminosilane is selected from the group consisting of a) aminosilanes of the formula Image wherein n = 1 to 3, m = 0 or 1, p = 0 or 1 and each R represents a C1 to C3 alkyl moiety, and b) aminosilanes of the formula Image wherein n = 1 to 3, m = 0 or 1, p' = 2 or 3, R represents a C1 to C3 alkyl moiety, and R' represents a hydrogen atom or a C1 to C3 alkyl moiety. This binding agent is suitable for the binding of inorganic oxidic material especially sand where it exhibits improved shelf life as compared with unalkylated known aminosilanes.
331201
Junger Hans
Seiler Claus-Dieter
Dynamit Nobel Aktiengesellschaft
Robic Robic & Associes/associates
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