James R Petzold is a notable inventor based in Lancaster, PA (US). He has made significant contributions to the field of flooring technology, holding a total of four patents. His work focuses on enhancing the performance and durability of floor coverings through innovative materials and methods.

Latest Patents

Petzold's latest patents include a high TG surface covering wear layer and seam coater. This invention features a wear layer and/or seam coater made from a high T.sub.g urethane composition. Unlike most floor covering urethanes, which have a T.sub.g ranging from 18°C to 23°C, Petzold's composition boasts a T.sub.g above 40°C, ideally between 48°C and 55°C. This improvement is achieved by modifying the composition of aromatic acid-based polyester polyols used in moisture-curable prepolymers. By adjusting the precursor polyol to dicarboxylic acid ratio, the resulting polyester polyols exhibit lower equivalent weights, leading to a polyurethane-urea with a higher T.sub.g. Additionally, the T.sub.g can be increased by substituting long-chain flexible polyol precursors with shorter or less flexible alternatives. This high T.sub.g enhances stain resistance, and the moisture cure process can be performed under ambient conditions, allowing the composition to function as both a seam coater and a wear layer.

Another significant patent involves a method of seam coating flooring. This method entails applying a seam coating composition, which includes a cyanoacrylate monomer and a plasticizer, to the seam of a surface covering product. The preferred monomers are methyl 2-cyanoacrylate, ethyl 2-cyanoacrylate, or methoxy ethyl 2-cyanoacrylate, while dibutyl phthalate is the preferred plasticizer. The seam coating is designed to have a viscosity of approximately 100 CPS, and an accelerator may be used on the uncured seam coating.

Career Highlights

James R Petzold is currently employed at Armstrong World Industries, Inc., a leading company in the flooring industry. His innovative work has contributed to the advancement of flooring technologies, making them more durable and efficient.

Collaborations

Petzold has collaborated with notable coworkers, including Jesse D Miller, Jr. and Wendell A

Profile summary based on public USPTO records.

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