Hans-Helmut Friedrich

Person

Lautertal-Gadernheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Stabilizer system for stabilizing halogen-containing polymers
- Patent number 7,671,118
- Issue date Mar 2, 2010
- Chemtura Vinyl Additives, GmbH
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Prestabilization of halogen-containing polymers
- Patent number 7,612,133
- Issue date Nov 3, 2009
- Chemtura Vinyl Additives GmbH
- Karl-Josef Kuhn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilizer system for stabilizing halogen-containing polymers
- Patent number 7,393,887
- Issue date Jul 1, 2008
- Crompton Corporation
- Hans-Helmut Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilizer system for stabilizing PVC
- Patent number 7,358,286
- Issue date Apr 15, 2008
- Chemtura Vinyl Additives GmbH
- Thomas Hopfmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Chlorate-containing stabilizer system with nitrogen-containing syne...
- Patent number 7,077,981
- Issue date Jul 18, 2006
- Crompton Vinyl Additives GmbH
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
1,3-Disubstituted 6-aminouracils for stabilizing halogenated polymers
- Patent number 6,274,654
- Issue date Aug 14, 2001
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
4-aminopyrimidinones and oxazolidino-4-aminopyrimidinones, process...
- Patent number 6,232,375
- Issue date May 15, 2001
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cyanoacetylureas for stabilizing halogenated polymers
- Patent number 6,211,270
- Issue date Apr 3, 2001
- Witco Vinyl Additives GmbH
- Hans-Helmut Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabiliser combinations for chlorine-containing polymers
- Patent number 6,194,494
- Issue date Feb 27, 2001
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
NH2-modified 6-aminouracils as stabilizers for halogenated polymers
- Patent number 6,174,941
- Issue date Jan 16, 2001
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
5-substituted 6-aminouracils as stabilizers for halogenated polymers
- Patent number 6,156,830
- Issue date Dec 5, 2000
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrrolodiazine derivatives as stabilizers for chilorine-containing...
- Patent number 6,002,004
- Issue date Dec 14, 1999
- Witco Vinyl Additives GmbH
- Wolfgang Wehner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilizer combinations for chlorine-containing polymers
- Patent number 5,925,696
- Issue date Jul 20, 1999
- Ciba Speciality Chemicals Corporation
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Additives for lubricants
- Patent number 5,892,051
- Issue date Apr 6, 1999
- Ciba Specialty Chemicals Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Rigid PVC stabilised with N,N-dimethyl-6-aminouracils
- Patent number 5,859,100
- Issue date Jan 12, 1999
- Ciba Specialty Chemicals Corporation
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Pyrrolodiazine derivatives as stabilizers for chlorine-containing p...
- Patent number 5,770,643
- Issue date Jun 23, 1998
- Ciba Specialty Chemicals Corporation
- Wolfgang Wehner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Additives for lubricants
- Patent number 5,618,778
- Issue date Apr 8, 1997
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphonic acid derivatives and thionophosphonic acid derivatives
- Patent number 5,550,276
- Issue date Aug 27, 1996
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compositions comprising 2,2',2"-nitrilotriethanol cyclometalates
- Patent number 5,481,039
- Issue date Jan 2, 1996
- CIBA Geigy Corp.
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compositions comprising 2,2',2"-nitrilotriethanol cyclometalates
- Patent number 5,380,344
- Issue date Jan 10, 1995
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of linear 1,3-diketones
- Patent number 5,344,992
- Issue date Sep 6, 1994
- Ciba-Geigy Corporation
- Rolf Drewes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of alpha-aminoketone salts
- Patent number 5,322,964
- Issue date Jun 21, 1994
- Ciba-Geigy Corporation
- Rolf Drewes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted pyrroles as stabilisers for chlorinated polymers
- Patent number 5,288,776
- Issue date Feb 22, 1994
- Ciba-Geigy Corporation
- Rolf Drewes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compositions containing 2,2',2"-nitrilotriethanol cyclometalates
- Patent number 5,256,323
- Issue date Oct 26, 1993
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Propane-1,3-dione derivatives and their use as stabilizers for poly...
- Patent number 5,071,898
- Issue date Dec 10, 1991
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sulfur- and nitrogen-containing lubricant additives
- Patent number 5,002,698
- Issue date Mar 26, 1991
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ether-containing or thioether-containing 1,3-diketones and the use...
- Patent number 4,992,504
- Issue date Feb 12, 1991
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing glycidyl thioethers
- Patent number 4,931,576
- Issue date Jun 5, 1990
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Lubricant compositions, novel glucamine derivatives and complex com...
- Patent number 4,886,610
- Issue date Dec 12, 1989
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sulfur-and nitrogen-containing lubricant additives
- Patent number 4,863,621
- Issue date Sep 5, 1989
- Ciba-Geigy Corporation
- Hermann O. Wirth
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
STABILIZING SYSTEM FOR HALOGENOUS POLYMERS
- Publication number 20090170988
- Publication date Jul 2, 2009
- Crompton Vinyl AdditivesGmbH
- Wolfgang WEHNER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Prestabilization of halogen-containing polymers
- Publication number 20070299175
- Publication date Dec 27, 2007
- Karl-Josef Kuhn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Novel stabilizer system for halogenous polymers
- Publication number 20060270765
- Publication date Nov 30, 2006
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Stabilizer system for the stabilisation of halogenated polymers
- Publication number 20060235124
- Publication date Oct 19, 2006
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Novel stabilizer system for stabilizing halogen-containing polymers
- Publication number 20060192179
- Publication date Aug 31, 2006
- CROMPTON VINYL ADDITIVES GmbH
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Stabilizer system for stabilizing halogen-containing polymers
- Publication number 20060183830
- Publication date Aug 17, 2006
- CROMPTON CORPORATION
- Hans-Helmut Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Stabilizer system for stabilizing pvc
- Publication number 20060052497
- Publication date Mar 9, 2006
- Crompton Vinyl Additives GmbH
- Thomas Hopfmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Prestabilization of halogen-containing polymers
- Publication number 20040259988
- Publication date Dec 23, 2004
- Karl-Josef Kuhn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Chlorate-containing stabilizer system with nitrogen-containing syne...
- Publication number 20040132875
- Publication date Jul 8, 2004
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Stabilizer system for stabilizing polymers that contain halogen
- Publication number 20040054043
- Publication date Mar 18, 2004
- Hans-Helmut Friedrich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Hans-Helmut Friedrich

Person

Patents Grantslast 30 patents

Stabilizer system for stabilizing halogen-containing polymers

Prestabilization of halogen-containing polymers

Stabilizer system for stabilizing halogen-containing polymers

Stabilizer system for stabilizing PVC

Chlorate-containing stabilizer system with nitrogen-containing syne...

1,3-Disubstituted 6-aminouracils for stabilizing halogenated polymers

4-aminopyrimidinones and oxazolidino-4-aminopyrimidinones, process...

Cyanoacetylureas for stabilizing halogenated polymers

Stabiliser combinations for chlorine-containing polymers

NH2-modified 6-aminouracils as stabilizers for halogenated polymers

5-substituted 6-aminouracils as stabilizers for halogenated polymers

Pyrrolodiazine derivatives as stabilizers for chilorine-containing...

Stabilizer combinations for chlorine-containing polymers

Additives for lubricants

Rigid PVC stabilised with N,N-dimethyl-6-aminouracils

Pyrrolodiazine derivatives as stabilizers for chlorine-containing p...

Additives for lubricants

Phosphonic acid derivatives and thionophosphonic acid derivatives

Compositions comprising 2,2',2"-nitrilotriethanol cyclometalates

Compositions comprising 2,2',2"-nitrilotriethanol cyclometalates

Process for the preparation of linear 1,3-diketones

Process for the preparation of alpha-aminoketone salts

Substituted pyrroles as stabilisers for chlorinated polymers

Compositions containing 2,2',2"-nitrilotriethanol cyclometalates

Propane-1,3-dione derivatives and their use as stabilizers for poly...

Sulfur- and nitrogen-containing lubricant additives

Ether-containing or thioether-containing 1,3-diketones and the use...

Process for producing glycidyl thioethers

Lubricant compositions, novel glucamine derivatives and complex com...

Sulfur-and nitrogen-containing lubricant additives

Patents Applicationslast 30 patents

STABILIZING SYSTEM FOR HALOGENOUS POLYMERS

Prestabilization of halogen-containing polymers

Novel stabilizer system for halogenous polymers

Stabilizer system for the stabilisation of halogenated polymers

Novel stabilizer system for stabilizing halogen-containing polymers

Stabilizer system for stabilizing halogen-containing polymers

Stabilizer system for stabilizing pvc

Prestabilization of halogen-containing polymers

Chlorate-containing stabilizer system with nitrogen-containing syne...

Stabilizer system for stabilizing polymers that contain halogen