Karl-Erwin Piejko

Person

Cologne, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of N-substituted cyclic imides
- Patent number 5,773,630
- Issue date Jun 30, 1998
- Bayer Aktiengesellschaft
- Torsten Groth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
ABS moulding compositions with improved properties
- Patent number 5,741,853
- Issue date Apr 21, 1998
- Bayer AG
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastics having a high heat deflection temperature and improv...
- Patent number 5,726,265
- Issue date Mar 10, 1998
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastics having a high heat deflection temperature and improv...
- Patent number 5,714,541
- Issue date Feb 3, 1998
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic ABS moulding compositions
- Patent number 5,708,079
- Issue date Jan 13, 1998
- Bayer AG
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic moulding compositions of the ABS type
- Patent number 5,696,204
- Issue date Dec 9, 1997
- Bayer AG
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
ABS molding compounds with improved toughness
- Patent number 5,674,940
- Issue date Oct 7, 1997
- Bayer AG
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
ABS moulding compounds with novel morphology
- Patent number 5,674,939
- Issue date Oct 7, 1997
- Bayer Aktiengesellschaft
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
ABS polymer compositions having a uniform matt surface
- Patent number 5,605,963
- Issue date Feb 25, 1997
- Bayer Aktiengesellschaft
- Edgar Leitz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Graft polymers with improved surface gloss
- Patent number 5,599,862
- Issue date Feb 4, 1997
- Burkhard Kohler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mixture of fluorocarbon rubber and silicone/acrylate core/shell rubber
- Patent number 5,587,424
- Issue date Dec 24, 1996
- Bayer Aktiengesellschaft
- Gerhard Langstein
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Defoaming compositions for ABS latices
- Patent number 5,486,583
- Issue date Jan 23, 1996
- Bayer Aktiengesellschaft
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Powder mixtures for matt polycarbonate molding compounds
- Patent number 5,484,846
- Issue date Jan 16, 1996
- Bayer AG
- Dieter Wittman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Abietic acid derivatives and their use as emulsifiers
- Patent number 5,456,861
- Issue date Oct 10, 1995
- Bayer AG
- Karl-Erwin Piejko
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mixtures of bisphenols and graft polymers
- Patent number 5,434,203
- Issue date Jul 18, 1995
- Bayer Aktiengesellschaft
- Christian Lindner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic fluorocopolymers and the fluoromonomers used for thei...
- Patent number 5,426,165
- Issue date Jun 20, 1995
- Bayer Aktiengesellschaft
- Ralf Kruger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composition of polycarbonate, ABS, a basic additive and a carboxyli...
- Patent number 5,420,181
- Issue date May 30, 1995
- Bayer Aktiengesellschaft
- Herbert Eichenauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Molding compounds having improved fire behavior
- Patent number 5,344,876
- Issue date Sep 6, 1994
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic molding compounds of polyalkylene terephthalate, spec...
- Patent number 5,298,546
- Issue date Mar 29, 1994
- Bayer Aktiengesellschaft
- Jurgen Kirsch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Compatible polymer blends with thermoplastic polycarbonates
- Patent number 5,296,528
- Issue date Mar 22, 1994
- Bayer Aktiengesellschaft
- Holger Lutjens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of alpha-methylstyrene polymers
- Patent number 5,266,642
- Issue date Nov 30, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic graft polymers containing oxetanyl groups
- Patent number 5,252,674
- Issue date Oct 12, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer blends containing ethylene polymers for flexible films
- Patent number 5,250,617
- Issue date Oct 5, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Interpolymers of aromatic polyesters and rubbers
- Patent number 5,250,621
- Issue date Oct 5, 1993
- Bayer Aktiengesellschaft
- Holger Lutjens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer combinations with a high rubber content
- Patent number 5,250,622
- Issue date Oct 5, 1993
- Bayer Aktiengesellschaft
- Holger Lutjens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vinyl chloride polymer based moulding compositions with reduced fog...
- Patent number 5,248,727
- Issue date Sep 28, 1993
- Bayer Aktiengesellschaft
- Christian Lindner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Non-crosslinked polymers, containing reactive double bonds, of fluo...
- Patent number 5,247,036
- Issue date Sep 21, 1993
- Bayer Aktiengesellschaft
- Ralf Kruger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Graft polymer dispersions
- Patent number 5,238,977
- Issue date Aug 24, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic compositions of polyurethanes and partly crosslinked...
- Patent number 5,237,001
- Issue date Aug 17, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer mixtures of alkylmethacrylate-grafted alkylacrylate rubber...
- Patent number 5,229,455
- Issue date Jul 20, 1993
- Bayer Aktiengesellschaft
- Karl-Erwin Piejko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Karl-Erwin Piejko

Person

Patents Grantslast 30 patents

Process for the preparation of N-substituted cyclic imides

ABS moulding compositions with improved properties

Thermoplastics having a high heat deflection temperature and improv...

Thermoplastics having a high heat deflection temperature and improv...

Thermoplastic ABS moulding compositions

Thermoplastic moulding compositions of the ABS type

ABS molding compounds with improved toughness

ABS moulding compounds with novel morphology

ABS polymer compositions having a uniform matt surface

Graft polymers with improved surface gloss

Mixture of fluorocarbon rubber and silicone/acrylate core/shell rubber

Defoaming compositions for ABS latices

Powder mixtures for matt polycarbonate molding compounds

Abietic acid derivatives and their use as emulsifiers

Mixtures of bisphenols and graft polymers

Thermoplastic fluorocopolymers and the fluoromonomers used for thei...

Composition of polycarbonate, ABS, a basic additive and a carboxyli...

Molding compounds having improved fire behavior

Thermoplastic molding compounds of polyalkylene terephthalate, spec...

Compatible polymer blends with thermoplastic polycarbonates

Process for the preparation of alpha-methylstyrene polymers

Thermoplastic graft polymers containing oxetanyl groups

Polymer blends containing ethylene polymers for flexible films

Interpolymers of aromatic polyesters and rubbers

Polymer combinations with a high rubber content

Vinyl chloride polymer based moulding compositions with reduced fog...

Non-crosslinked polymers, containing reactive double bonds, of fluo...

Graft polymer dispersions

Thermoplastic compositions of polyurethanes and partly crosslinked...

Polymer mixtures of alkylmethacrylate-grafted alkylacrylate rubber...