Stephan Astegger

Person

Vocklabruk, AT

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the regeneration of an aqueous process liquid of the am...
- Patent number 5,847,129
- Issue date Dec 8, 1998
- Lenzing Aktiengesellschaft
- Peter Harfmann
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Amine-oxides
- Patent number 5,409,532
- Issue date Apr 25, 1995
- Lenzing Aktiengesellschaft
- Stephan Astegger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing shaped cellulosic articles
- Patent number 5,216,144
- Issue date Jun 1, 1993
- Lenzing Aktiengesellschaft
- Dieter Eichinger
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Cellulose solution in water and NMMO
- Patent number 5,189,152
- Issue date Feb 23, 1993
- Lenzing Aktiengesellschaft
- Peter Hinterholzer
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method of removing water from a dilute solution of N-methylmorpholi...
- Patent number 5,118,423
- Issue date Jun 2, 1992
- Lenzing Aktiengesellschaft
- Stephan Astegger
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for purifying an aqueous solution of N-methyl-morpholine N-...
- Patent number 5,053,138
- Issue date Oct 1, 1991
- Lenzing Aktiengesellschaft
- Dietmar Korger
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method of removing amines
- Patent number 5,043,075
- Issue date Aug 27, 1991
- Lenzing Aktiengesellschaft
- Korger Dietmar
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Stephan Astegger

Person

Patents Grantslast 30 patents

Process for the regeneration of an aqueous process liquid of the am...

Amine-oxides

Method of producing shaped cellulosic articles

Cellulose solution in water and NMMO

Method of removing water from a dilute solution of N-methylmorpholi...

Process for purifying an aqueous solution of N-methyl-morpholine N-...

Method of removing amines