Delman R Asher

Title: Delman R. Asher: Inventor of a Macroporous Carbon Foam Process

Introduction

Delman R. Asher was an inventor associated with Midland, Michigan, and The Dow Chemical Company. His documented patent work concerns a process for preparing macroporous, open-cell carbon foam.

Latest Patents

The supplied information identifies one patent for Asher: “Process for Preparing Macroporous Open-Cell Carbon Foam from Normally Crystalline Vinylidene Chloride Polymer.” The process contacts the polymer foam with liquid ammonia at a temperature of at least about 25°C until at least about 50 percent of the theoretical chloride ions have been removed. The foam is then heated to remove residual ammonium chloride. The resulting carbon foam is described as particularly useful as a filter for cigarette smoke and similar applications. Asher’s record lists 1 patent.

Career Highlights

Asher’s listed invention reflects work on converting a normally crystalline vinylidene chloride polymer into a porous carbon material. The patent describes a chemical treatment and heating sequence intended to produce an open-cell foam suitable for filtration.

Collaborations

The supplied information names Charles F. Raley, Jr. as Asher’s coworker. Both are associated with The Dow Chemical Company in the provided data.

Conclusion

Delman R. Asher’s documented contribution is a patented process for producing macroporous, open-cell carbon foam with potential filtration uses.