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Jueptner
Detlef Jueptner, Kleinblittersdorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20110246030 | Drive Arrangement And Method For A Work Machine With Two Internal Combustion Engines - A drive arrangement for a work machine is provided, having a first internal combustion engine and a second internal combustion engine. A controller is allocated to the internal combustion engines, and a drive train is selectively connected to both internal combustion engines for driving elements of the work machine. In the case of a double-engine mode, the controller specifies a maximum single power (P | 10-06-2011 |
Guenter Jueptner, Hammah DE
| Patent application number | Description | Published |
|---|---|---|
| 20110224372 | PROCESS FOR PREPARING LINEAR POLYCARBONATE WITH IMPROVED IMPACT PROPERTIES - The present invention relates to an improved process for preparing linear polycarbonates having an improved technique for adding a coupling catalyst compound, specifically the addition of the coupling catalyst at two or more separate, different points in the process. Linear polycarbonate resins prepared by said process demonstrate a lower level of polycarbonate oligomers and an improved balance of properties, in particular improved impact strength and lower ductile brittle transition temperature. | 09-15-2011 |
Guenter A. Jueptner, Hammah DE
| Patent application number | Description | Published |
|---|---|---|
| 20100069573 | PRODUCTION OF META-BLOCK COPOLYMERS BY POLYMER SEGMENT INTERCHANGE - Meta-block copolymers and a process for preparing a product mixture comprising meta-block copolymers by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more ethylenically unsaturated polymers, said unsaturation defining one or more polymer segments in each ethylenically unsaturated polymer, at least one polymer segment in at least one ethylenically unsaturated polymer being chemically distinguishable from at least one polymer segment in at least one other ethylenically unsaturated polymer, characterized in that each meta-block copolymer in the product mixture comprises a random distribution of said chemically distinguishable polymer blocks. | 03-18-2010 |
| 20100222513 | PRODUCTION OF METATHESIS PRODUCTS BY AMORPHOUS POLYMER SEGMENT INERCHANGE - A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0.001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0° C. and having from 0.001 to 5 mole percent unsaturation. | 09-02-2010 |
| 20110224389 | METHOD FOR RECYCLING AMINE CATALYST IN INTERFACIAL POLYCARBONATE MANUFACTURING PROCESS - The present invention relates to an improved process for recycling a coupling catalyst, preferably an amine catalyst in an interfacial polycarbonate manufacturing process. Specifically, the amine catalyst is recycled in an acidic wash water solution. | 09-15-2011 |
Guenter A. Jueptner, Hammeh DE
| Patent application number | Description | Published |
|---|---|---|
| 20100010161 | PRODUCTION OF METATHESIS PRODUCTS BY HIGH MELTING POLYMER SEGMENT INTERCHANGE - Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0.001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100° C. are cross-metathesized to form thermoplastic elastomers having improved performance properties. | 01-14-2010 |
Ulrich Jueptner, Hilden DE
| Patent application number | Description | Published |
|---|---|---|
| 20110011498 | COLORED CONVERSION LAYERS DEVOID OF CHROME FORMED ON METAL SURFACES - A method for producing coloured layers on zinc, aluminium, magnesium or alloy surfaces. The surfaces are brought into contact with an aqueous treatment solution which is devoid of chrome, said solution containing, in total, 3-35 g/l persulfate ions and/or peroxodisulfate ions and not more than 10 g/l ammonia or ammonium ions, it has a pH value in the region of between 10-12 and a temperature in the range of between 30-80° C. The surfaces are brought into contact with the treatment solution for a period in the region of 0.5-5 minutes and optionally, they are covered with a coating based on organic polymers. The invention further relates to metal parts treated according to said method. | 01-20-2011 |