Wolfgang Cohnen

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Hydroprimer for metallising substrate surfaces
- Patent number 5,300,140
- Issue date Apr 5, 1994
- Bayer Aktiengesellschaft
- Gerhard-Dieter Wolf
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Solutions for stabilizing thermoplastic polycarbonates
- Patent number RE32046
- Issue date Dec 10, 1985
- Bayer Aktiengesellschaft
- Erich Eimers
- 524 - Synthetic resins or natural rubbers
Information Patent Grant
Polycarbonate molding compositions having improved flame retardance
- Patent number 4,552,911
- Issue date Nov 12, 1985
- Bayer Aktiengesellschaft
- Wolfgang Cohnen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polycarbonates having N-alkyl-perflu...
- Patent number 4,503,213
- Issue date Mar 5, 1985
- Bayer Aktiengesellschaft
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polycarbonates having sulfonanilide...
- Patent number 4,471,104
- Issue date Sep 11, 1984
- Bayer Aktiengesellschaft
- Sivaram Krishnan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Internal antistatic agents for polycarbonates and for polycarbonate...
- Patent number 4,450,249
- Issue date May 22, 1984
- Bayer Aktiengesellschaft
- Manfred Schmidt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the isolation of polycarbonates based on 4,4'-dihydroxy...
- Patent number 4,404,351
- Issue date Sep 13, 1983
- Bayer Aktiengesellschaft
- Peter Kafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of organic silicon compounds for stabilizing and brightening po...
- Patent number 4,375,525
- Issue date Mar 1, 1983
- Bayer Aktiengesellschaft
- Karsten Idel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solutions for stabilizing thermoplastic polycarbonates
- Patent number 4,367,303
- Issue date Jan 4, 1983
- Bayer Aktiengesellschaft
- Erich Eimers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of organic silicon compounds in combination with oxetane compou...
- Patent number 4,342,681
- Issue date Aug 3, 1982
- Bayer Aktiengesellschaft
- Karsten Idel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame resistant, transparent polycarbonates comprising bisulfite ad...
- Patent number 4,327,015
- Issue date Apr 27, 1982
- Bayer Aktiengesellschaft
- Frank Druschke
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Scratch-resistant and weather-resistant laminates based on polycarb...
- Patent number 4,301,212
- Issue date Nov 17, 1981
- Bayer Aktiengesellschaft
- Wolfgang Cohnen
- B32 - LAYERED PRODUCTS
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-...
Information Patent Grant
UV Light stabilized polycarbonate composition
- Patent number 4,228,067
- Issue date Oct 14, 1980
- Bayer Aktiengesellschaft
- Burkhard Lachmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Boric acid esters and oxetanes for stabilizing phosphite-free polyc...
- Patent number 4,225,483
- Issue date Sep 30, 1980
- Bayer Aktiengesellschaft
- Erich Eimers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate molding compositions with improved flame-repellency
- Patent number 4,208,489
- Issue date Jun 17, 1980
- Bayer Aktiengesellschaft
- Manfred Schmidt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coating compositions for polycarbonates
- Patent number 4,180,493
- Issue date Dec 25, 1979
- Bayer Aktiengesellschaft
- Harald Selbeck
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Blowing agent mixture
- Patent number 4,110,273
- Issue date Aug 29, 1978
- Bayer Aktiengesellschaft
- Wolfgang Cohnen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilizer mixtures
- Patent number 4,102,859
- Issue date Jul 25, 1978
- Bayer Aktiengesellschaft
- Erich Eimers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Wolfgang Cohnen

Person

Patents Grantslast 30 patents

Hydroprimer for metallising substrate surfaces

Solutions for stabilizing thermoplastic polycarbonates

Polycarbonate molding compositions having improved flame retardance

Process for the preparation of polycarbonates having N-alkyl-perflu...

Process for the preparation of polycarbonates having sulfonanilide...

Internal antistatic agents for polycarbonates and for polycarbonate...

Process for the isolation of polycarbonates based on 4,4'-dihydroxy...

Use of organic silicon compounds for stabilizing and brightening po...

Solutions for stabilizing thermoplastic polycarbonates

Use of organic silicon compounds in combination with oxetane compou...

Flame resistant, transparent polycarbonates comprising bisulfite ad...

Scratch-resistant and weather-resistant laminates based on polycarb...

Process for the preparation of flame-resistant polycarbonates

UV Light stabilized polycarbonate composition

Boric acid esters and oxetanes for stabilizing phosphite-free polyc...

Polycarbonate molding compositions with improved flame-repellency

Coating compositions for polycarbonates

Blowing agent mixture

Stabilizer mixtures