Franz Weissenfels

Person

Siegburg am Grafenkreuz, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Phenolic resin foams of high filler content and their use as insula...
- Patent number 4,889,875
- Issue date Dec 26, 1989
- Dynamit Nobel AG
- Aloys Aust
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for the preparation of highly absorbent phenolic resin foams
- Patent number 4,426,462
- Issue date Jan 17, 1984
- Dynamit Nobel AG
- Franz Weissenfels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hardenable compositions of improved thermal stability
- Patent number 4,195,458
- Issue date Apr 1, 1980
- Dynamit Nobel Aktiengesellschaft
- Walter Hoppe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Phenolic resin foam having reduced tendency to shrink
- Patent number 4,166,162
- Issue date Aug 28, 1979
- Dynamit Nobel Aktiengesellschaft
- Franz Weissenfels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Metallurgical vessel
- Patent number 4,143,867
- Issue date Mar 13, 1979
- Dynamit Nobel Aktiengesellschaft
- Walter Hoppe
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of hardening liquid resols
- Patent number 4,111,911
- Issue date Sep 5, 1978
- Dynamit Nobel Aktiengesellschaft
- Franz Weissenfels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of hardening and foaming liquid resols using a mixture of di...
- Patent number 4,102,832
- Issue date Jul 25, 1978
- Dynamit Nobel Aktiengesellschaft
- Franz Weissenfels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Franz Weissenfels

Person

Patents Grantslast 30 patents

Phenolic resin foams of high filler content and their use as insula...

Method for the preparation of highly absorbent phenolic resin foams

Hardenable compositions of improved thermal stability

Phenolic resin foam having reduced tendency to shrink

Metallurgical vessel

Method of hardening liquid resols

Method of hardening and foaming liquid resols using a mixture of di...