Hans Zengel

Person

Kleinwallstadt, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of aqueous ammonium thiocyanate solutions
- Patent number 5,026,534
- Issue date Jun 25, 1991
- Akzo N.V.
- Gerhard Meyer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Thiuram polysulfide production
- Patent number 5,021,603
- Issue date Jun 4, 1991
- Akzo N.V.
- Manfred Bergfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of N,N'-disubstituted guanidines
- Patent number 4,898,978
- Issue date Feb 6, 1990
- Akzo nv
- Manfred Bergfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of ethylene-ethane mixtures
- Patent number 4,783,572
- Issue date Nov 8, 1988
- Akzo nv
- Klaus Wohlfahrt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide-containing cover layer for a printed circuit element
- Patent number 4,746,561
- Issue date May 24, 1988
- Akzo N.V.
- Ernst F. Kundinger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flexible multi-layer polyimide laminates
- Patent number 4,705,720
- Issue date Nov 10, 1987
- Akzo nv
- Ernst F. Kundinger
- B32 - LAYERED PRODUCTS
Information Patent Grant
Flexible multilayer polymide laminates
- Patent number 4,699,841
- Issue date Oct 13, 1987
- Akzo nv
- Ernst F. Kundinger
- B32 - LAYERED PRODUCTS
Information Patent Grant
Flexible multilayer polyimide laminates
- Patent number 4,675,246
- Issue date Jun 23, 1987
- Akzo N.V.
- Ernst F. Kundinger
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Process for the production of thiazolyl-2-sulphenamides
- Patent number 4,670,556
- Issue date Jun 2, 1987
- Akzo nv
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of dithiazolyl disulfides
- Patent number 4,558,135
- Issue date Dec 10, 1985
- Akzona Incorporated
- Hans-Georg Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thick polyimide-metal laminates with high peel strength
- Patent number 4,522,880
- Issue date Jun 11, 1985
- Akzona Incorporated
- Werner Klostermeier
- B32 - LAYERED PRODUCTS
Information Patent Grant
Preparation of trans cyclohexane 1,4-diamine
- Patent number 4,486,603
- Issue date Dec 4, 1984
- Akzona Incorporated
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-containing water glass fibers
- Patent number 4,471,019
- Issue date Sep 11, 1984
- Akzo nv
- Arno Wegerhoff
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for the preparation of thiuram disulfides
- Patent number 4,468,526
- Issue date Aug 28, 1984
- Akzona Incorporated
- Ludwig Eisenhuth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of trans cyclohexane 1,4-diurea
- Patent number 4,467,114
- Issue date Aug 21, 1984
- Akzona Incorporated
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of thiuram disulfides
- Patent number 4,459,424
- Issue date Jul 10, 1984
- Akzona Incorporated
- Ludwig Eisenhuth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of trans cyclohexane,1,4-diisocyanate and related compo...
- Patent number 4,457,871
- Issue date Jul 3, 1984
- Akzona Incorporated
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermoplastic polyurethane-elastomers from cyclohexane-1,4-diisocya...
- Patent number 4,442,281
- Issue date Apr 10, 1984
- Akzo N.V.
- Peter Hentschel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of trans cyclohexane 1,4-diisocyanate
- Patent number 4,439,370
- Issue date Mar 27, 1984
- Akzona Incorporated
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the crosslinking of cathodically depositable coating agents
- Patent number 4,437,960
- Issue date Mar 20, 1984
- Akzo, N.V.
- Hans-Georg Zengel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Waterdispersible cationic resins for electrodeposition
- Patent number 4,433,078
- Issue date Feb 21, 1984
- Akzo nv
- Hilde Kersten
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of trans-cyclohexane-1,4-disulphonyl urea
- Patent number 4,418,211
- Issue date Nov 29, 1983
- Akzona Incorporated
- Hans Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of para-amino-diphenylamine
- Patent number 4,404,401
- Issue date Sep 13, 1983
- Akzona Incorporated
- Hans G. Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the production of blocked isocyanates
- Patent number 4,393,238
- Issue date Jul 12, 1983
- Akzo nv
- Hans-Georg Zengel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymere N-halogenamide auf basis von acryl-und methacrylamid
- Patent number 4,357,447
- Issue date Nov 2, 1982
- Akzo nv
- Hans-Georg Zengel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymeric N-halogenoamides on the basis of acrylamide and methacryl...
- Patent number 4,356,289
- Issue date Oct 26, 1982
- Akzo nv
- Hans-Georg Zengel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of ureas
- Patent number 4,346,233
- Issue date Aug 24, 1982
- Akzona Incorporated
- Hans G. Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of bis-N-chloramides
- Patent number 4,342,707
- Issue date Aug 3, 1982
- Akzona Incorporated
- Hans-Georg Zengel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for making silica fibers
- Patent number 4,332,600
- Issue date Jun 1, 1982
- Akzo nv
- Arno Wegerhoff
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method for making silica fibers
- Patent number 4,332,601
- Issue date Jun 1, 1982
- Akzo nv
- Arno Wegerhoff
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Hans Zengel

Person

Patents Grantslast 30 patents

Process for the preparation of aqueous ammonium thiocyanate solutions

Thiuram polysulfide production

Process for the preparation of N,N'-disubstituted guanidines

Process for the preparation of ethylene-ethane mixtures

Polyimide-containing cover layer for a printed circuit element

Flexible multi-layer polyimide laminates

Flexible multilayer polymide laminates

Flexible multilayer polyimide laminates

Process for the production of thiazolyl-2-sulphenamides

Process for the preparation of dithiazolyl disulfides

Thick polyimide-metal laminates with high peel strength

Preparation of trans cyclohexane 1,4-diamine

Water-containing water glass fibers

Process for the preparation of thiuram disulfides

Preparation of trans cyclohexane 1,4-diurea

Process for the preparation of thiuram disulfides

Preparation of trans cyclohexane,1,4-diisocyanate and related compo...

Thermoplastic polyurethane-elastomers from cyclohexane-1,4-diisocya...

Preparation of trans cyclohexane 1,4-diisocyanate

Method for the crosslinking of cathodically depositable coating agents

Waterdispersible cationic resins for electrodeposition

Preparation of trans-cyclohexane-1,4-disulphonyl urea

Process for the preparation of para-amino-diphenylamine

Method for the production of blocked isocyanates

Polymere N-halogenamide auf basis von acryl-und methacrylamid

Polymeric N-halogenoamides on the basis of acrylamide and methacryl...

Process for the preparation of ureas

Process for the preparation of bis-N-chloramides

Method for making silica fibers

Method for making silica fibers