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Inventor: Wang; Wei
Address: Upper Darby, PA
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6063897 |
Acid-treated double metal cyanide complex catalysts |
May 16, 2000 |
| The amount of high molecular weight impurity present in a polyether polyol produced by alkoxylation of an active hydrogen-containing initiator and a substantially noncrystalline highly active double metal cyanide complex catalyst may be advantageously lowered by treating the catalyst pri |
| 6013596 |
Double metal cyanide catalysts containing cyclic, bidentate complexing agents |
January 11, 2000 |
| 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 |
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