Erhard Tresper

Person

Krefeld, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of polyarylene sulphides
- Patent number 5,306,805
- Issue date Apr 26, 1994
- Bayer AG
- Wolfgang Arlt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the purification of polyarylene sulphides
- Patent number 5,247,063
- Issue date Sep 21, 1993
- Bayer Aktiengesellschaft
- Wolfgang Alewelt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyphenylene sulphide moulding compounds with improved electrical...
- Patent number 5,234,984
- Issue date Aug 10, 1993
- Bayer Aktiengesellschaft
- Karl-Heinz Kohler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coatings based on polyarylene sulfides
- Patent number 5,120,606
- Issue date Jun 9, 1992
- Bayer Aktiengesellschaft
- Gerwolf Quaas
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Two-component injection molding with polyarylene sulfides
- Patent number 5,114,791
- Issue date May 19, 1992
- Bayer Aktiengesellschaft
- Kurt-Rainer Stahlke
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Copoly arylene/alkylene sulfide
- Patent number 5,066,775
- Issue date Nov 19, 1991
- Bayer Aktiengesellschaft
- Ernst-Ulrich Dorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Filled thermoplasts with low shrinkage anisotropy
- Patent number 5,066,704
- Issue date Nov 19, 1991
- Bayer Aktiengesellschaft
- Wolfgang Wehnert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of high molecular weight, optionally bra...
- Patent number 5,055,551
- Issue date Oct 8, 1991
- Bayer Aktiengesellschaft
- Manfred Schmidt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rapid-crystallizing polyphenylene sulphide compositions
- Patent number 5,045,585
- Issue date Sep 3, 1991
- Bayer Aktiengesellschaft
- Peter Bier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of high molecular weight, optionally bra...
- Patent number 5,037,952
- Issue date Aug 6, 1991
- Bayer Aktiengesellschaft
- Manfred Schmidt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of aromatic polyether ketones
- Patent number 4,999,414
- Issue date Mar 12, 1991
- Bayer Aktiengesellschaft
- Joachim Genz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Elastomer-modified carbon-containing polyarylene sulfide blends
- Patent number 4,985,175
- Issue date Jan 15, 1991
- Bayer Aktiengesellschaft
- Hans-Jurgen Dziurla
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rapid-crystallizing polyphenylene sulphide compositions
- Patent number 4,942,194
- Issue date Jul 17, 1990
- Bayer Aktiengesellschaft
- Peter Bier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Isolation of purified solid polyarylene sulfide directly from polym...
- Patent number 4,920,201
- Issue date Apr 24, 1990
- Bayer Aktiengesellschaft
- Wolfgang Jakob
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for isolating polyarylene sulphides
- Patent number 4,895,930
- Issue date Jan 23, 1990
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of N-alkylated caprolactams
- Patent number 4,873,326
- Issue date Oct 10, 1989
- Bayer Aktiengesellschaft
- Wolfgang Jakob
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for holding and foaming thermoplastic polyphenylene sulphid...
- Patent number 4,804,689
- Issue date Feb 14, 1989
- Bayer Aktiengesellschaft
- Paul J. Mayska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyether-sulphones
- Patent number 4,775,738
- Issue date Oct 4, 1988
- Bayer Aktiengesellschaft
- Paul J. Mayska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyarylene sulphide capped with monophenol compound
- Patent number 4,771,120
- Issue date Sep 13, 1988
- Bayer Aktiengesellschaft
- Wolfgang Alewelt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rapid crystallizing polyphenylene sulphide compositions
- Patent number 4,743,638
- Issue date May 10, 1988
- Bayer Aktiengesellschaft
- Peter Bier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rapidly crystallizing polyphenylene sulphide material containing su...
- Patent number 4,735,977
- Issue date Apr 5, 1988
- Bayer Aktiengesellschaft
- Peter Bier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the isolation of polyarylene sulphide from salts contai...
- Patent number 4,734,484
- Issue date Mar 29, 1988
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Rapid-crystallizing polyphenylene sulphide compositions
- Patent number 4,728,685
- Issue date Mar 1, 1988
- Bayer Aktiengesellschaft
- Peter Bier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the isolation of polyarylene sulphide
- Patent number 4,639,507
- Issue date Jan 27, 1987
- Bayer Aktiengesellschaft
- Wolfgang Alewelt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of aromatic polycarbonates by the phase...
- Patent number 4,367,330
- Issue date Jan 4, 1983
- Bayer Aktiengesellschaft
- Uwe Hucks
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of neutral phosphorous acid aryl esters
- Patent number 4,356,129
- Issue date Oct 26, 1982
- Bayer Aktiengesellschaft
- Uwe Hucks
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Twin-screw machine with screws rotatable in the same direction
- Patent number 4,352,568
- Issue date Oct 5, 1982
- Bayer Aktiengesellschaft
- Karl-Dieter Lohr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Continuous process for the hydrolytic production of polycaprolactam...
- Patent number 4,327,208
- Issue date Apr 27, 1982
- Bayer Aktiengesellschaft
- Gunter Lehr
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of neutral phosphoric acid esters
- Patent number 4,290,977
- Issue date Sep 22, 1981
- Bayer Aktiengesellschaft
- Uwe Hucks
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of flame-resistant polycarbonates
- Patent number 4,289,685
- Issue date Sep 15, 1981
- Bayer Aktiengesellschaft
- Frank Druschke
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Erhard Tresper

Person

Patents Grantslast 30 patents

Process for the preparation of polyarylene sulphides

Process for the purification of polyarylene sulphides

Polyphenylene sulphide moulding compounds with improved electrical...

Coatings based on polyarylene sulfides

Two-component injection molding with polyarylene sulfides

Copoly arylene/alkylene sulfide

Filled thermoplasts with low shrinkage anisotropy

Process for the production of high molecular weight, optionally bra...

Rapid-crystallizing polyphenylene sulphide compositions

Process for the production of high molecular weight, optionally bra...

Process for the production of aromatic polyether ketones

Elastomer-modified carbon-containing polyarylene sulfide blends

Rapid-crystallizing polyphenylene sulphide compositions

Isolation of purified solid polyarylene sulfide directly from polym...

Process for isolating polyarylene sulphides

Process for the preparation of N-alkylated caprolactams

Process for holding and foaming thermoplastic polyphenylene sulphid...

Process for the preparation of polyether-sulphones

Polyarylene sulphide capped with monophenol compound

Rapid crystallizing polyphenylene sulphide compositions

Rapidly crystallizing polyphenylene sulphide material containing su...

Process for the isolation of polyarylene sulphide from salts contai...

Rapid-crystallizing polyphenylene sulphide compositions

Process for the isolation of polyarylene sulphide

Process for the preparation of aromatic polycarbonates by the phase...

Process for the preparation of neutral phosphorous acid aryl esters

Twin-screw machine with screws rotatable in the same direction

Continuous process for the hydrolytic production of polycaprolactam...

Process for the production of neutral phosphoric acid esters

Process for the preparation of flame-resistant polycarbonates