Rolf Wiedermann

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid, light-colored polyisocyanate mixtures and a process for the...
- Patent number 5,426,126
- Issue date Jun 20, 1995
- Bayer Aktiengesellschaft
- Herbert Gebauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of rigid foams containing urethane and i...
- Patent number 5,367,000
- Issue date Nov 22, 1994
- Bayer Aktiengesellschaft
- Rolf Wiedermann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of rigid polyurethane foams
- Patent number 5,223,549
- Issue date Jun 29, 1993
- Bayer Aktiengesellschaft
- Rolf Wiedermann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of rigid foams containing urethane and p...
- Patent number 5,084,485
- Issue date Jan 28, 1992
- Bayer Aktiengesellschaft
- Gerhard Heilig
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid polyisocyanate mixtures, a process for their preparation, an...
- Patent number 5,028,636
- Issue date Jul 2, 1991
- Bayer Aktiengesellschaft
- Herbert Gebauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyurethane foams using sterically h...
- Patent number 4,945,120
- Issue date Jul 31, 1990
- Richard Kopp
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of foams based on aromatic isocyanates u...
- Patent number 4,931,481
- Issue date Jun 5, 1990
- Bayer Aktiengesellschaft
- Norbert Adam
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyurethane foams
- Patent number 4,931,480
- Issue date Jun 5, 1990
- Bayer Aktiengesellschaft
- Kurt Krippl
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyol composition and a process for the preparation of flame-resis...
- Patent number 4,767,795
- Issue date Aug 30, 1988
- Bayer Aktiengesellschaft
- Norbert Adam
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyester polyols, a process for their production and their use in...
- Patent number 4,681,903
- Issue date Jul 21, 1987
- Bayer Aktiengesellschaft
- Peter Haas
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Isocyanate addition products and a process for their production
- Patent number 4,623,672
- Issue date Nov 18, 1986
- Bayer Aktiengesellschaft
- Roland Kleinstuck
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of liquid bromine-containing alkoxylatio...
- Patent number 4,621,104
- Issue date Nov 4, 1986
- Bayer Aktiengesellschaft
- Manfred Dietrich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Rigid, closed-cell, flame-resistant polyurethane foams
- Patent number 4,575,520
- Issue date Mar 11, 1986
- Bayer Aktiengesellschaft
- Manfred Kapps
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Nonflammable light foams containing urea and urethane groups in whi...
- Patent number 4,404,294
- Issue date Sep 13, 1983
- Bayer Aktiengesellschaft
- Rolf Wiedermann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hexahydrotriazine carboxylates and the use thereof as catalysts in...
- Patent number 4,310,633
- Issue date Jan 12, 1982
- Bayer Aktiengesellschaft
- Peter Haas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hexahydrotriazine carboxylates and the use thereof as catalysts in...
- Patent number 4,260,754
- Issue date Apr 7, 1981
- Bayer Aktiengesellschaft
- Peter Haas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of plastics containing isocyanurate grou...
- Patent number 4,246,365
- Issue date Jan 20, 1981
- Bayer Aktiengesellschaft
- Rolf Wiedermann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of phosphonates as trimerization catalysts for the production o...
- Patent number 4,235,976
- Issue date Nov 25, 1980
- Bayer Aktiengesellschaft
- Peter Haas
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyetheresters which contain hydroxyl groups and the use thereof i...
- Patent number 4,128,532
- Issue date Dec 5, 1978
- Bayer Aktiengesellschaft
- Erich Eimers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR THE PRODUCTION OF RIGID FOAMS CONTAINING URETHANE GROUP...
- Publication number 20020103268
- Publication date Aug 1, 2002
- ROLF WIEDERMANN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Rolf Wiedermann

Person

Patents Grantslast 30 patents

Liquid, light-colored polyisocyanate mixtures and a process for the...

Process for the production of rigid foams containing urethane and i...

Process for the production of rigid polyurethane foams

Process for the production of rigid foams containing urethane and p...

Liquid polyisocyanate mixtures, a process for their preparation, an...

Process for the production of polyurethane foams using sterically h...

Process for the production of foams based on aromatic isocyanates u...

Process for the preparation of polyurethane foams

Polyol composition and a process for the preparation of flame-resis...

Polyester polyols, a process for their production and their use in...

Isocyanate addition products and a process for their production

Process for the production of liquid bromine-containing alkoxylatio...

Rigid, closed-cell, flame-resistant polyurethane foams

Nonflammable light foams containing urea and urethane groups in whi...

Hexahydrotriazine carboxylates and the use thereof as catalysts in...

Hexahydrotriazine carboxylates and the use thereof as catalysts in...

Process for the production of plastics containing isocyanurate grou...

Use of phosphonates as trimerization catalysts for the production o...

Polyetheresters which contain hydroxyl groups and the use thereof i...

Patents Applicationslast 30 patents

PROCESS FOR THE PRODUCTION OF RIGID FOAMS CONTAINING URETHANE GROUP...