Zirconium urethane catalysts

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing

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502152, 502161, 502170, 502172, 2521822, 25218225, 25218226, B01J 3122

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active

058468978

ABSTRACT:
The present invention is directed to novel metal organocomplexes as catalysts for the reaction of compounds with isocyanate and hydroxy functional groups to form urethane and/or polyurethane and the process employing such catalysts. More particularly, the present invention is directed to novel complexes of zirconium or hafnium with diketones or alkylacetoacetoates. These novel catalysts are useful for the production of urethanes and polyurethanes which are important in many industrial applications, such as: coatings, foams, adhesives, sealants, and reaction injection molding (RIM) plastics.

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patent: 5496597 (1996-03-01), Soininen et al.
Organic Coatings Science technology, vol. 1, Wiley Interscience Co., pp. 188-211 (no month), 1992.
Proceedings of Water Borne and High SolidsCoatings Symposium, Feb. 25-27, 1987, New Orleans, at p. 460.
B.D. Nahlovsky and G.A. Zimmerman, Int. Jahrestag. Fraunhofer--Inst. Treib-Explosivst., 18th (Technol. Energ. Mater.), 39:1-12. (1987) (no month).
R.C. Fay in the Chapter on Zirconium and Hafnium, in Geoffrey Wikinson ed., Comprehensive Coordination Chemistry, vol. 3, p. 363, Pergamon Press, (1987). (no month available).

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