Eckehard Weigand

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Roesrath, DE

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Patents Grantslast 30 patents

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
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-...