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Aug. 23, 1921 – Jan. 8, 2014

Leonard E. Amborski, a retired research chemist and certified industrial hygienist, died Wednesday in Fox Run, Orchard Park, after a short illness. He was 92.

Born in Buffalo, Mr. Amborski graduated in 1939 from East High School. In 1943, he graduated from Canisius College with a degree in chemistry.

After graduation, he was an instructor in physics at the college.

Mr. Amborski and Irene Kazmierczak were married Oct. 3, 1944, in Holy Name of Jesus Catholic Church. They moved to Washington, D.C., where he was a research physicist for the Carnegie Institute’s Department of Terrestrial Magnetism.

In 1945, he began his 44-year career at the E.I. du Pont de Nemours plant in the Town of Tonawanda.

At night, he attended the University of Buffalo, where he earned a master’s degree in 1951 and a doctorate in 1953, both in polymer chemistry.

His work with polymetric fibers led to more than 20 patents and publications in the field.

“The one that had the most impact on people is the process I used to make high-strength Mylar film, and that turned out to be the base film for all video and audio tapes that had been used the past several years,” he told the Am-Pol Eagle in 2010 when it named him its Citizen of the Year in Science.

In 1975, Mr. Amborski began working in the field of industrial hygiene to study airborne contaminants, noise, radiation, heat stress and toxicology at DuPont and other companies.

He was active in many local Polish organizations, including the Polish Genealogical Society.

His wife died in July 2012.

Mr. Amborski is survived by a daughter, Donna Eckert; a son, David; and two sisters, Alice Brownsey and Christine Tytka.

A Mass of Christian Burial will be offered at 9:30 a.m. Monday in St. Gabriel Catholic Church, 5271 Clinton St., Elma.