3m Innovative Properties Company

Gerald R Hofmann

Naiyong Jing

Thomas P Klun

Zai-Ming Qiu

Duane Douglas Fansler

Mark J Pellerite

Suresh Iyer

Smarajit Mitra

Terry R Hobbs

Andrew S Viner

Adriana Paiva

Gregory D Clark

Mitchell T Johnson

Lowell C Zeller

Oscar S Benz

Craig A Burton

Augustine C Liu

A personal safety protective device that includes a lens and a support structure onto which the lens is secured. The lens includes a substrate and a hard-coat layer located on the substrate of the lens. The hard-coat layer has a low surface energy outer surface that is derived from a) an additive that includes at least one of i) a perfluoropolyether urethane that includes hydrolysable silane groups, and ii) an acrylate polymer that includes at least one perfluoropolyether moiety and at least one hydrolysable silane group, and b) a silsesquioxane-based hard-coat composition. The provision of such a lens on a personal safety protective device enables the lens to be durable to abrasion and to be easily cleaned without use of solvents that could shorten the service life of the lens.

Respirator, welding helmet, or face shield that has low surface energy hard-coat lens

A solid cleaner for heated surfaces is disclosed. The solid cleaner includes a solidifying agent including wax, and a cleaning agent. The solid cleaner is solid at room temperature and liquid at an elevated temperature. Methods of cleaning a heated surface and cleaning articles are also disclosed.

Solid cleaners for heated food preparation surfaces

Growing community of inventors

Oakdale, MN, United States of America

Gerald R Hofmann