Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From organic oxygen-containing reactant
Patent
1996-03-19
1997-01-21
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From organic oxygen-containing reactant
528405, 528412, 528415, C08G 6512, C08G 6528, C08G 6548
Patent
active
055960758
ABSTRACT:
Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts of the invention can be recovered from the epoxide polymer products and can be reused to catalyze additional epoxide polymerizations.
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J. L. Schuchardt et al., SPI Proceedings, 32nd Annual Polyurethane Tech World Conf. (1989) 360.
Arco Chemical Technology L.P.
Schuchardt Jonathan L.
Sellers Robert E.
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