Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Patent
1998-05-18
2000-01-11
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
502172, 502159, 502154, 525403, 528405, 528415, B01J 2726, B01J 3100, C08G 6504, C08G 5968, C08G 6532
Patent
active
060135964
ABSTRACT:
Double metal cyanide (DMC) catalysts and methods for making them are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and optionally, a functionalized polymer. The key component is the complexing agent, which comprises a C.sub.3 -C.sub.5 aliphatic alcohol a cyclic, bidentate compound selected from lactams and lactones. Polyether polyols made from the catalysts contain reduced levels of high-molecular-weight (Mn greater than 400,000) components and consistently perform better in urethane applications such as flexible and molded foams.
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Faraj Mahmoud K.
Le-Khac Bi
Wang Wei
Arco Chemical Technology L.P.
Bell Mark L.
Pasterczyk J.
Schuchardt Jonathan L.
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