Quality and Compliance Presentations

In addition to working in the field of adhesives, Dr. Steiner has also advised companies about quality and compliance. The two attached presentations presentations provide an example of Dr. Steiner’s passion in these areas.

Available for adhesive consulting &
adhesive expert witness services.

The first, entitled “A Graded or Risk Based Approach to cGMP Compliance for API Manufacturing” covers such topics as: Continue reading

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Adhesive Failure & Epoxy Failure

Many of Dr. Steiner’s expert consulting engagements concern actual or suspected failure in adhesive and epoxy bonds in aerospace, medical device, pharmaceuticals, packaging, industrial, and construction applications.

Available for adhesive consulting &
adhesive expert witness services.

Below is a very high-level overview of some of the concepts involved in adhesive failure analysis. Continue reading

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Polybenzimidazole (PBI) Prepreg II: Improved Elevated Temperature Properties with Autoclave Processability

Below of the abstract of a paper Dr. Steiner co-authored on this topic.

Available for adhesive consulting &
adhesive expert witness services.

Polybenzimidazoles are heterocyclic polymers which are known for their outstanding thermal and chemical stability. Hoechst Celanese has recently developed PBI (2,2′-(m-phenylene)-5,5′-bibenzimidazole) as an engineering plastic with the trade name Celazole. The polymer has excellent compressive strength, high tensile strength and modulus, and a glass transition temperature of 453°C (P. A. Steiner and R. B. Sandor, High Perf. Polym., 3, 139 (1991)). Continue reading

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