Gerfried Pruckmayr

Person

Media, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...
- Patent number 6,989,432
- Issue date Jan 24, 2006
- INVISTA North America S.a.r.l.
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Block copolyethers via oxonium coupling of poly(tetramethylene ethe...
- Patent number 5,284,980
- Issue date Feb 8, 1994
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerizing tetrahydrofuran to produce polytetramethylene ether gl...
- Patent number 5,118,869
- Issue date Jun 2, 1992
- E. I. Du Pont de Nemours and Company
- Suriyanarayan Dorai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing improved poly(tetramethylene ether) glycol by...
- Patent number 4,584,414
- Issue date Apr 22, 1986
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing poly(tetramethylene ether) glycol having narro...
- Patent number 4,510,333
- Issue date Apr 9, 1985
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alcoholysis process for preparing poly-(tetramethylene ether) glycol
- Patent number 4,230,892
- Issue date Oct 28, 1980
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for reducing oligomeric cyclic ether content of a polymerizate
- Patent number 4,202,964
- Issue date May 13, 1980
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of esters of poly-(tetramethylene ether) glycol
- Patent number 4,163,115
- Issue date Jul 31, 1979
- E. I. Du Pont de Nemours and Company
- George E. Heinsohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for preparing ester end-capped copolyether glycols
- Patent number 4,153,786
- Issue date May 8, 1979
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for preparing copolyether glycols
- Patent number 4,139,567
- Issue date Feb 13, 1979
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing poly(tetramethylene ether) glycol
- Patent number 4,120,903
- Issue date Oct 17, 1978
- E. I. Du Pont de Nemours and Company
- Gerfried Pruckmayr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...
- Publication number 20060084786
- Publication date Apr 20, 2006
- INVISTA NORTH AMERICA S.A.R.L.
- Gerfried Pruckmayr
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...
- Publication number 20030166821
- Publication date Sep 4, 2003
- Gerfried Pruckmayr
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Gerfried Pruckmayr

Person

Patents Grantslast 30 patents

Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...

Block copolyethers via oxonium coupling of poly(tetramethylene ethe...

Polymerizing tetrahydrofuran to produce polytetramethylene ether gl...

Process for preparing improved poly(tetramethylene ether) glycol by...

Method for preparing poly(tetramethylene ether) glycol having narro...

Alcoholysis process for preparing poly-(tetramethylene ether) glycol

Method for reducing oligomeric cyclic ether content of a polymerizate

Preparation of esters of poly-(tetramethylene ether) glycol

Method for preparing ester end-capped copolyether glycols

Method for preparing copolyether glycols

Method for preparing poly(tetramethylene ether) glycol

Patents Applicationslast 30 patents

Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...

Copolymers of tetrahydrofuran, ethylene oxide and an additional cyc...