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De Lange
Paulus De Lange, Wesseling DE
| Patent application number | Description | Published |
|---|---|---|
| 20090099315 | Polyethylene Composition Suitable for the Preparation of Films and Process for Preparing the Same - A polyethylene composition, in particular suitable for the preparation of films, and a process for preparing the same are described. The polyethylene composition of the invention comprises from 50 to 89% by weight of a first polyethylene component comprising at least one multimodal polyethylene including a plurality of ethylene polymer fractions having distinct molecular weights and comonomer contents, at least one of said plurality of ethylene polymer fractions being prepared by the use of a single site catalyst, and from 50 to 11% by weight of a second polyethylene component comprising a low or medium density polyethylene. | 04-16-2009 |
| 20120065335 | Polyethylene composition suitable for the preparation of films and process for preparing the same - A polyethylene composition, in particular suitable for the preparation of films, and a process for preparing the same are described. The polyethylene composition of the invention comprises from 50 to 89% by weight of a first polyethylene component comprising at least one multimodal polyethylene including a plurality of ethylene polymer fractions having distinct molecular weights and comonomer contents, at least one of said plurality of ethylene polymer fractions being prepared by the use of a single site catalyst, and from 50 to 11% by weight of a second polyethylene component comprising a low or medium density polyethylene. | 03-15-2012 |
Paulus-Petrus Maria De Lange, Wesseling DE
| Patent application number | Description | Published |
|---|---|---|
| 20100331502 | GAS-PHASE PROCESS FOR THE POLYMERIZATION OF ALPHA-OLEFINS - A continuous gas-phase process for the polymerization of alpha-olefins, in particular ethylene, comprising passing an alpha-olefin monomer stream through an oil filter in order to reduce the amount of oil to less than 8 ppm, and polymerizing the thus purified monomer feed in gas-phase reactor; the reduction of the amount of oil improves the operability of the plant over time. | 12-30-2010 |
Robert J. De Lange, Greenfield, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20080203960 | Method and apparatus for estimating system inertia where number of motor rotations are restricted - A method and apparatus for estimating inertia of an electric motor that drives a load wherein the load has a limited range of load travel, the method comprising the steps of identifying an intermediate position along the range of load travel that is separated from a first end of the range of load travel, receiving a sensor signal from a sensor attached to the electric motor, with the load separated from a first end of the range of load travel, increasing a velocity of the electric motor from a first velocity as the load travels toward the first end of the range of load travel, identifying when the load has reached the intermediate position, identifying the motor velocity at the intermediate position as a second velocity, in response to the sensor signal, detecting a first rate of velocity change from the first velocity to the second velocity, acquiring a plurality of torque samples while the electric motor is changing velocity, each torque sample representing an amount of torque generated by the electric motor, calculating a first torque average by averaging the plurality of torque samples and deriving an inertia value as a function of the first rate of velocity change and the first average amount of torque. | 08-28-2008 |
Wilco De Lange, Kalarne SE
| Patent application number | Description | Published |
|---|---|---|
| 20120098251 | CLAMPING DEVICE FOR CENTRING PIPES - A clamping device ( | 04-26-2012 |