Wilfried Zecher

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Production of polyamide imides
- Patent number 5,093,457
- Issue date Mar 3, 1992
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aliphatic-aromatic polyamide-imides
- Patent number 5,004,795
- Issue date Apr 2, 1991
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for improving the adhesive strength of electrolessly deposi...
- Patent number 4,910,045
- Issue date Mar 20, 1990
- Bayer Aktiengesellschaft
- Henning Giesecke
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Special polyimides as thermoplasts
- Patent number 4,908,429
- Issue date Mar 13, 1990
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of special polyimides as cast films and coatings
- Patent number 4,908,430
- Issue date Mar 13, 1990
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamidimides having modified end groups
- Patent number 4,829,140
- Issue date May 9, 1989
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aliphatic-aromatic polyamidimides containing polyamides
- Patent number 4,792,590
- Issue date Dec 20, 1988
- Bayer Akteingesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyamide imides
- Patent number 4,640,970
- Issue date Feb 3, 1987
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamide imides produced from either lactams or polyamides with is...
- Patent number 4,628,079
- Issue date Dec 9, 1986
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyamideimides from polyisocyanates,...
- Patent number 4,624,981
- Issue date Nov 25, 1986
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of aliphatic-aromatic poly-amide-imides...
- Patent number 4,600,729
- Issue date Jul 15, 1986
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamideimides produced from either lactams or polyamides with iso...
- Patent number 4,549,006
- Issue date Oct 22, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamideimides prepared by reacting either lactams or polyamides w...
- Patent number 4,548,970
- Issue date Oct 22, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyamide imides by using a phenol in...
- Patent number 4,546,138
- Issue date Oct 8, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamidoimides prepared from trimelitic acid anhydride, isocyanate...
- Patent number 4,546,162
- Issue date Oct 8, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparation of hydantoin esters through a masked polyis...
- Patent number 4,517,353
- Issue date May 14, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of fumaric acid monoesters
- Patent number 4,515,974
- Issue date May 7, 1985
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyamide imides
- Patent number 4,472,567
- Issue date Sep 18, 1984
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of imidazolidine triones
- Patent number 4,384,122
- Issue date May 17, 1983
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polymers containing hydantoin groups
- Patent number 4,298,515
- Issue date Nov 3, 1981
- Bayer Aktiengesellschaft
- Jurgen Lewalter
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Heat-resistant cross-linked polymers and the use thereof as binders
- Patent number 4,293,669
- Issue date Oct 6, 1981
- Bayer Aktiengesellschaft
- Ludwig Rottmaier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyhydantoins from unsaturated carboxylic acids and polyiso(thio)c...
- Patent number 4,289,868
- Issue date Sep 15, 1981
- Bayer Aktiengesellschaft
- Jurgen Lewalter
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of hydantoins
- Patent number 4,281,140
- Issue date Jul 28, 1981
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polymers containing hydantoin groups
- Patent number 4,269,750
- Issue date May 26, 1981
- Bayer Aktiengesellschaft
- Jurgen Lewalter
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of poly(thio)hydantoins
- Patent number 4,246,393
- Issue date Jan 20, 1981
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyisocyanates with at least one hydantoin or thiohydantoin ring s...
- Patent number 4,212,982
- Issue date Jul 15, 1980
- Bayer Aktiengesellschaft
- Jurgen Lewalter
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of hydantoins and polyhydantoin resins
- Patent number 4,196,274
- Issue date Apr 1, 1980
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polycondensate containing cyclic imid...
- Patent number 4,187,365
- Issue date Feb 5, 1980
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of hydantoin lacquers
- Patent number 4,182,812
- Issue date Jan 8, 1980
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycondensates
- Patent number 4,124,568
- Issue date Nov 7, 1978
- Bayer Aktiengesellschaft
- Wilfried Zecher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Wilfried Zecher

Person

Patents Grantslast 30 patents

Production of polyamide imides

Aliphatic-aromatic polyamide-imides

Process for improving the adhesive strength of electrolessly deposi...

Special polyimides as thermoplasts

Use of special polyimides as cast films and coatings

Polyamidimides having modified end groups

Aliphatic-aromatic polyamidimides containing polyamides

Process for the production of polyamide imides

Polyamide imides produced from either lactams or polyamides with is...

Process for the production of polyamideimides from polyisocyanates,...

Process for the preparation of aliphatic-aromatic poly-amide-imides...

Polyamideimides produced from either lactams or polyamides with iso...

Polyamideimides prepared by reacting either lactams or polyamides w...

Process for the production of polyamide imides by using a phenol in...

Polyamidoimides prepared from trimelitic acid anhydride, isocyanate...

Process for preparation of hydantoin esters through a masked polyis...

Process for the preparation of fumaric acid monoesters

Process for the production of polyamide imides

Process for the production of imidazolidine triones

Process for the preparation of polymers containing hydantoin groups

Heat-resistant cross-linked polymers and the use thereof as binders

Polyhydantoins from unsaturated carboxylic acids and polyiso(thio)c...

Process for the preparation of hydantoins

Process for the preparation of polymers containing hydantoin groups

Process for the preparation of poly(thio)hydantoins

Polyisocyanates with at least one hydantoin or thiohydantoin ring s...

Process for the production of hydantoins and polyhydantoin resins

Process for the production of polycondensate containing cyclic imid...

Process for the preparation of hydantoin lacquers

Polycondensates