| Patent Number |
Title Of Patent |
Date Issued |
| 5783513 |
Process for making double metal cyanide catalysts |
July 21, 1998 |
| A process for making substantially non-crystalline double metal cyanide (DMC) catalysts having improved activity and performance is disclosed. The process comprises using a metal salt having an alkalinity within the range of about 0.2 to about 2.0 wt. % as metal oxide based on the amount |
| 5780584 |
Highly active double metal cyanide complex catalysts |
July 14, 1998 |
| Highly active double metal cyanide (DMC) complex catalysts and methods for making them are disclosed. The catalysts contain less than about 0.2 moles of metal salt per mole of DMC compound in the catalyst, and unlike other highly active DMC catalysts, are substantially crystalline. Polye |
| 5714639 |
Double metal cyanide catalysts and methods for making them |
February 3, 1998 |
| Improved double metal cyanide (DMC) catalysts useful for making epoxide polymers are disclosed. One catalyst is a paste of a double metal cyanide (DMC) compound, an organic complexing agent, and water. The paste comprises at least about 90 wt. % of particles having a particle size wi |
| 5712216 |
Highly active double metal cyanide complex catalysts |
January 27, 1998 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 5639705 |
Double metal cyanide catalysts and methods for making them |
June 17, 1997 |
| Improved double metal cyanide (DMC) catalysts useful for making epoxide polymers are disclosed. One catalyst is a paste of a double metal cyanide (DMC) compound, an organic complexing agent, and water. The paste comprises at least about 90 wt. % of particles having a particle size wi |
| 5627122 |
Highly active double metal cyanide complex catalysts |
May 6, 1997 |
| Highly active double metal cyanide (DMC) complex catalysts and methods for making them are disclosed. The catalysts contain less than about 0.2 moles of metal salt per mole of DMC compound in the catalyst, and unlike other highly active DMC catalysts, are substantially crystalline. Polye |
