Heinz Grewatta

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Cologne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Organyloxysilyl-functional thioures with halogen rubber mixtures
- Patent number 4,952,641
- Issue date Aug 28, 1990
- Degussa Aktiengesellschaft
- Siegfried Wolff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Vulcanizable 2-sec.amino-4,6-dimercapto-s-triazine containing halog...
- Patent number 4,636,550
- Issue date Jan 13, 1987
- Degussa AG
- Siegfried Wolff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for vulcanization or cross-linking halogen containing rubbe...
- Patent number 4,517,335
- Issue date May 14, 1985
- Degussa Aktiengesellschaft
- Siegfried Wolff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Silane/filler preparations, process for their production and their use
- Patent number 4,297,145
- Issue date Oct 27, 1981
- Degussa Aktiengesellschaft
- Siegfried Wolff
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES