Self-releasing binder based on isocyanate and the use...

C - Chemistry – Metallurgy – 08 – G

Patent

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400/111, 6/122,

C08G 18/00 (2006.01) C08G 18/70 (2006.01) C08G 18/72 (2006.01) C08G 18/83 (2006.01) C08K 5/42 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1150887

ABSTRACT OF THE DISCLOSURE The present invention relates to a substantially anhydrous binder having a self-releasing effect for the production of pressed articles comprising: (A) a polyisocyanate; and (B) a sulfonic acid corresponding to the general formula: Image wherein n represents an integer of 1 or 2; R represents an aromatic hydrocarbon radical having from 6 to 14 carbon atoms, an aliphatic hydrocarbon radical having from 10 to 18 carbon atoms, a cycloaliphatic hydrocarbon radical having from 6 to 15 carbon atoms, an araliphatic hydrocarbon radical having from 7 to 15 carbon atoms or an alkaromatic hydrocarbon radical having from 7 to 24 carbon atoms; and the equivalent ratio of the components (A) and (B) is 100:0.5 to 100:20 The invention is also directed to the use of such binders in the production of shaped articles by the hot pressing of a wide variety of organic and/or inorganic materials

351632

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