Co-catalyst system for preparing polyurethane based plywood-patc

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...

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502102, 502170, 528 57, C08G 1822

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active

050119028

ABSTRACT:
A plywood-patching composition is provided based on a non-cellular polyurethane elastomer prepared by reacting a polyether or polyester polyol with a polyisocyanate in the presence of a catalytic amount of a co-catalyst system comprising an organo-bismuth compound, preferably a bismuth salt of a carboxylic acid, and at least one organo-metallic compound, preferably a metal salt of a carboxylic acid, wherein the metal is selected from the group consisting of zinc, antimony and lithium and wherein the bismuth and metal are present in an effective mole ratio; and process for preparing same. The catalysts utilized are relatively non-toxic, yet they promote rapid polymerization with essentially no foaming for a wide variety of non-cellular polyurethane elastomeric applications, particularly in plywood-patch applications where even small amounts of foaming are deleterious to the properties thereof.

REFERENCES:
patent: 1878962 (1932-09-01), Meidert
patent: 3164557 (1965-01-01), Merten et al.
patent: 3203932 (1965-08-01), Frisch et al.
patent: 3245957 (1966-04-01), Hindersinn et al.
patent: 3245958 (1966-04-01), Hindersinn et al.
patent: 3407153 (1968-10-01), Bowman et al.
patent: 3450653 (1969-06-01), McCellan et al.
patent: 3583945 (1971-06-01), Robins
patent: 3592787 (1971-07-01), Robins
patent: 3691135 (1972-09-01), Schulze et al.
patent: 3714077 (1973-01-01), Cobbledick et al.
patent: 3725355 (1973-04-01), Parrish et al.
patent: 3799898 (1974-03-01), Lamplugh et al.
patent: 3801532 (1974-04-01), Olstowski
patent: 3901852 (1975-08-01), Shah
patent: 3912516 (1975-10-01), Recchia et al.
patent: 3929732 (1975-12-01), Shah
patent: 3957753 (1976-05-01), Hostettler et al.
patent: 4000103 (1976-12-01), Olstowski
patent: 4000104 (1976-12-01), Olstowski
patent: 4001165 (1977-01-01), Olstowski
patent: 4067844 (1978-01-01), Barron et al.
patent: 4115301 (1978-09-01), Kennedy
patent: 4189541 (1980-02-01), Ohashi et al.
patent: 4284751 (1981-08-01), Hutt et al.
patent: 4296172 (1981-10-01), Hill
patent: 4306052 (1981-12-01), Bonk et al.
patent: 4321333 (1982-03-01), Alberino et al.
patent: 4349663 (1982-09-01), Barsa et al.
patent: 4374210 (1983-02-01), Ewen et al.
patent: 4385133 (1983-05-01), Alberino et al.
patent: 4410689 (1983-10-01), Barsa et al.
patent: 4412033 (1983-10-01), LaBelle et al.
patent: 4426485 (1984-01-01), Hoy et al.
patent: 4448816 (1984-05-01), Barsa et al.
patent: 4452829 (1984-06-01), Smith
patent: 4468478 (1984-08-01), Dexheimer et al.
patent: 4497913 (1985-02-01), Raes et al.
patent: 4584362 (1986-04-01), Leckart et al.
J. W. Britain et al., "Catalysis of the Isocyanate-Hydroxyl Reaction", Journal of Applied Polymer Science IV, pp. 207-211, (1960).
N. Irving Sax, "Dangerous Properties of Industrial Materials", Sixth Edition, p. 496, (1984).
The Merck Index, 10th Edition, p. 178, (1983).
J. D. Arenivar, "Bismuth Carboxlates for Polyurethane Catalysts", 32nd Annual Polyurethane Technical/Marketing Conference, pp. 623-627, Oct. 1-4, 1989.
A. R. Leckart et al., "New Catalyst for Two-Component Elastomer Systems", found in Journal of Elasters and Plastics, vol. 19-Oct. 1987, pp. 313-324.
Dabco, K-15 and T-45 Catalyst from Air Products and Chemicals, Inc., "Product Bulletins" & MSD Sheet for K-15.
Fomrez EC-683, EC-686, and EC-688 available from WITCO Chemical Corporation, "Product Bulletins".

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