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Photochemistry

 Subject
Subject Source: Library of Congress Subject Headings

Found in 8 Collections and/or Records:

Charles J. Pedersen lab notebooks

 Collection
Accession: 2270
Abstract:

Charles J. Pedersen (1904-1989) was a research chemist with E.I. du Pont de Nemours & Company who spent most of his career at the Jackson Laboratory in Deepwater, New Jersey, and the Elastomer Chemicals Department in Wilmington, Delaware. This collection consists of two laboratory notebooks from Jackson Laboratory from 1956.

Dates: 1956

Collection of photographic miscellany

 Collection
Accession: 1992-242
Abstract:

Aristo Gold was a product of the American Aristotype Co. which was purchased by Eastman Kodak Company before 1920. This is a small group of material all related to photography. There are three stock photographs, company samples all printed on Aristo Gold "pure collodian-matt surface for sepia effects" paper; a letter, a price list and a tearsheet.

Dates: circa 1920

DuPont Company display photographs

 Collection
Accession: 1998-260
Abstract:

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. Defender Photo Supply, an early leader in the manufacturing of black and white sheet film, plates, printing paper and instructional books, was purchased by the DuPont Company in 1945. The DuPont Imaging Systems Plant, in Rochester, New York, manufactured photographic film and chemicals and ceased operations in 1995. This collection contains four display photographic prints made on DuPont Defender photographic paper. The views are all scenic and also included is an aerial photograph of the Rochester, New York plant of the DuPont Company's Photo Products Department.

Dates: circa 1947

DuPont Company, Patent Department records

 Collection
Accession: 2804
Abstract:

E.I. du Pont de Nemours & Company is a chemical company, commonly referred to as the DuPont Company. It manufactured paints, dyes, and photographic products, and focused on applied research. This collection consists of materials related to patents and patent research. It includes patent proposal logs and patent search files from several DuPont Company departments related to photographic film and electronic products. The departments include: Photo Products, Electrochemical (Elchem), Electronics, Imaging Systems, and Photosystems and Electronics Department. This collection would be useful for examining research trends and patented product development.

Dates: 1926-2001

DuPont-Pathe tinted positive film samples

 Collection
Accession: 1998-264
Abstract:

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. The company was established in 1802 and began with the production of gunpowder. Throughout the 1900s and 1910s, the company shifted its focus away from gunpowder production and towards chemistry innovations. During the 1910s, the DuPont Company decided to enter the film and photographic supply market. In 1924, it entered into a joint venture with Pathé Exchange, called DuPont-Pathé Film Manufacturing Corporation. This collection consists of a booklet with seven short strips of tinted 35mm motion picture film stock.

Dates: circa 1925

E.I. du Pont de Nemours & Company, Photo Products Department miscellany

 Collection
Accession: 2712
Abstract:

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. The Photo Products Department was formed in December 1941. The products it manufactured expanded from cinema film and included an array of medical products related to x-ray film and other photographic film products. This is a small collection of DuPont Company Photo Products Department materials primarily related to x-ray and radiographic film processing.

Dates: circa 1980

Levy family business papers

 Collection
Accession: 1272
Abstract:

Brothers Louis Edward Levy (1846-1919) and Max Levy (1857-1926) founded a photoengraving business in Baltimore in 1875. In 1877, they moved to Philadelphia and reorganized the firm as the Levytype Company. Here they introduced their invention (jointly patented on January 4, 1875) of a new photochemical engraving process, which they called "Levy-type." The bulk of the papers consists of incoming correspondence relating to orders and shipments from 1895 to 1920, and includes letters from all parts of the United States, Europe (especially England and Germany), and more distant places such as India, Australia, and Chile.

Dates: 1888-1920

Rolf Dessauer papers

 Collection
Accession: 2451
Abstract:

Rolf Dessauer (born 1926) began a lengthy career with E. I. du Pont de Nemours and Company in 1952 as a research chemist at Jackson Laboratory, DuPont’s center for dye research. Dessauer invented chemistry in which exposure to visible light stabilized the background enabling dark and light areas to retain their contrast. Intense research and patent studies led Dessauer and his colleagues to a new technology, UVI – Ultraviolet Imaging. His papers document Dessauer’s career as a noted scientist and chemist.

Dates: 1951-1998