Rolf Drewes

Person

Bad Bellingen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Stabilized halogen-containing polymers
- Patent number 6,531,533
- Issue date Mar 11, 2003
- Crompton Vinyl Additives GmbH
- Karl Josef Kuhn
- 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
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
Stabilized polyvinyl chloride containing recycled material
- Patent number 5,985,964
- Issue date Nov 16, 1999
- Witco Vinyl Additives GmbH
- Heinz Herbst
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
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
Stabilized flexible PVC
- Patent number 5,543,449
- Issue date Aug 6, 1996
- Ciba-Geigy Corporation
- Rolf Drewes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilized halogen-containing polymers
- Patent number 5,534,566
- Issue date Jul 9, 1996
- Ciba-Geigy Corporation
- Wolfgang Wehner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilized polyvinyl chloride
- Patent number 5,519,077
- Issue date May 21, 1996
- Ciba-Geigy Corporation
- Rolf Drewes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilized polyvinyl chloride
- Patent number 5,492,949
- Issue date Feb 20, 1996
- Ciba-Geigy Corporation
- Rolf Drewes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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

Rolf Drewes

Person

Patents Grantslast 30 patents

Stabilized halogen-containing polymers

Stabiliser combinations for chlorine-containing polymers

NH2-modified 6-aminouracils as stabilizers for halogenated polymers

Pyrrolodiazine derivatives as stabilizers for chilorine-containing...

Stabilized polyvinyl chloride containing recycled material

Stabilizer combinations for chlorine-containing polymers

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

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

Stabilized flexible PVC

Stabilized halogen-containing polymers

Stabilized polyvinyl chloride

Stabilized polyvinyl chloride

Process for the preparation of linear 1,3-diketones

Process for the preparation of alpha-aminoketone salts

Substituted pyrroles as stabilisers for chlorinated polymers