C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/102, 6/42
C08K 5/09 (2006.01) C08G 18/65 (2006.01) C08J 9/00 (2006.01) C08K 5/098 (2006.01) C08K 5/16 (2006.01) C08K 5/17 (2006.01)
Patent
CA 1312973
Mo-2946 LeA 24,698 A MOLD RELEASE COMPOSITION, MIXTURES CONTAINING THIS MOLD RELEASE COMPOSITION, A PROCESS FOR THE PRODUCTION OF MOLDED ARTICLES AND THE MOLDED ARTICLES OBTAINED BY THIS PROCESS ABSTRACT OF THE DISCLOSURE The present invention is directed to mold release compositions based on a solution which is liquid at room temperature and contains (i) at least one zinc salt of a straight or branched chain, saturated or unsaturated aliphatic car- boxylic acid containing 8 to 24 carbon atoms in (ii) at least one organic compound containing tertiary nitrogen atoms which is liquid at room temperature, the zinc salt being present in a quantity of about 10 to 75% by weight, based on the total weight of the compo- sition, characterized in that component (ii) is based on at least one compound corresponding to the formula Image wherein R', R", R''' and Riv, which may be identical or dif- ferent, denote alkyl groups containing 1 to 4 carbon atoms or any two of the groups R' and R" or R''' and RiV may combine with the nitrogen atom to form a 6-membered heterocyclic ring optionally containing an oxygen atom or an alkyl substituted nitrogen atom an hetero atom and having a total of 4 or 5 carbon atoms, R denotes hydrogen or a group of the formula ?(CH2)o-NH2 and m, n and o denote identical or different integers with values from 2 to 6. The present invention is also directed to a mixture suitable for use as a reactant for polyiso- cyanates containing isocyanate-reactive groups and the mold release composition described above. Finally, the present invention is directed to a process for the production of a elastomeric molded article having a nonporous surface by reacting a polyisocyanate with the previously described mixture containing isocyanate-reactive groups and to the molded articles produced by the process.
543782
Haas Peter
Weber Christian
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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