John E Callan is a notable inventor based in Broken Arrow, OK (US). He has made significant contributions to the field of sealant technology, holding a total of five patents. His work focuses on developing advanced materials that enhance adhesive bonding properties.

Latest Patents

Among his latest patents is the "Hot melt crosslinked butyl sealant," which features compositions that include a slightly crosslinked butyl rubber combined with carefully controlled amounts of a crystalline polymeric resin and a tackifying resin. Another significant patent is the "Hot melt butyl sealant intermediate," which describes intermediate compositions useful for creating improved hot melt butyl sealants. These compositions are obtained by partially grafting a mixture of butyl rubber, a different elastomer, and/or a crystalline polymeric resin, along with an elastomeric resin. Preferred formulations include various combinations of butyl rubber with other elastomers and block copolyester elastomeric resins.

Career Highlights

John E Callan is currently employed at Cities Service Company, where he continues to innovate in the field of sealants. His work has been instrumental in advancing the performance and application of sealant materials in various industries.

Collaborations

He collaborates with Eric L Scheinbart, contributing to the development of new technologies and products in their field.

Conclusion

John E Callan's contributions to sealant technology through his patents and work at Cities Service Company highlight his role as an influential inventor. His innovative approaches continue to shape the industry and improve adhesive bonding solutions.

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