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Oral history interview with Rolf Dessauer, 2012 August 7-8 and October 1

Author: Rolf Dessauer; Sarah L Hunter; Hilary Domush; Chemical Heritage Foundation.
Series: Chemical Heritage Foundation Oral history transcript, 0703.
Edition/Format:   Archival material : English
Summary:
Rolf Dessauer was born in Nuremberg, Germany, one of two sons of a physician and a housewife. His family fled to the United States after Kristallnacht, eventually settling in Flushing, New York. After service in the US Army, Dessauer received his bachelor's and master's degrees from the University of Chicago, and a PhD in organic chemistry from the University of Wisconsin. Dessauer began his career at E. I. du Pont  Read more...
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Genre/Form: Interviews
Biographies
Oral histories
Biography
Named Person: Rolf Dessauer
Document Type: Archival Material
All Authors / Contributors: Rolf Dessauer; Sarah L Hunter; Hilary Domush; Chemical Heritage Foundation.
OCLC Number: 1124852332
Event notes: Interview conducted by Sarah L. Hunter-Lascoskie and Hilary L. Domush at Dessauer's home, Wilmington, Delaware, on 7-8 August and 1 October 2018 (With Subsequent Corrections and Additions)
Description: Sound files ; digital, mp3 file. Transcript : (109 leaves, bound) ; 29 cm.
Series Title: Chemical Heritage Foundation Oral history transcript, 0703.
Other Titles: Rolf Dessauer oral history interview.
Dessauer oral history interview.
Responsibility: conducted by Sarah L. Hunter-Lascoskie and Hilary L. Domush.

Abstract:

Rolf Dessauer was born in Nuremberg, Germany, one of two sons of a physician and a housewife. His family fled to the United States after Kristallnacht, eventually settling in Flushing, New York. After service in the US Army, Dessauer received his bachelor's and master's degrees from the University of Chicago, and a PhD in organic chemistry from the University of Wisconsin. Dessauer began his career at E. I. du Pont de Nemours & Company, working at the Jackson Laboratory on dyes and UV-screening agents. He developed dyes for Alcoa's anodized aluminum, discovered a way to color Teflon, and taught dye chemistry to employees at DuPont's Ducilo plant in Buenos Aires. Although his inventions often met with resistance, his work on UV-screening agents was a commercial success. Reassigned to DuPont's Experimental Station, Dessauer began work on photochromic materials, leading to imidazole derivatives, which formed stable colored free radicals on exposure to light. When mixed with leucodyes, these hexaarylbiimidazoles (nicknamed HABIs) produced colors. The project was called ultraviolet imaging (UVI) and it initially generated interdepartmental enthusiasm. By exposing a coated paper to ultraviolet light--or visible then UV light--one could form negative- or positive-mode images. Paper was coated on both sides; the product thus produced was named Dylux 503 proof paper and it found wide acceptance in the printing industry from 1969 to 2010. Additionally, HABIs were found to be useful in photoinitiating polymerization, leading to successful color proofing systems and a family of photoresists; under certain conditions, coatings containing HABIs promoted changes in adhesion. Dessauer's job then was to find other uses for HABIs. He developed photodecoration for leather and for furniture, early bar code labels, color cathode ray tubes, and an identification system for patients' specimens at Georgetown University. Again, Dessauer had to fight for support for his projects. There are now at least eighteen hundred U.S. patents involving the HABI family, most of the first four hundred of them granted to DuPont. Dessauer had been at DuPont for thirty-five years when DuPont and Xerox formed a new company, DX Imaging (DXI), to market newly invented photopolymer electrography. Dessauer left DuPont to work at DXI, but the company was closed down after three years. He became a consultant for DuPont, Xerox and a number of other companies, including Hewlett Packard, and this work resulted in another patent. Since then Dessauer has also written histories of his work--notably, Photochemistry, history and commercial applications of hexaarylbiimidazoles: all about HABIs, published by Elsevier--and he is writing an e-book about color. He also plans to write an entry for Wikipedia. Additionally, with his friend, the late Thomas Gravell, Dessauer made a study of watermarks of early postage stamps and documents, printing on Dylux 503. He and his wife, a long-time friend from Germany, visit Philadelphia often, exploring restaurants and theaters. He keeps up with the biimidazole literature and is still thinking about the unsolved problem of tackiness. He has contributed records of his work to the Hagley Museum and Library. Dessauer bemoans the current lack of long-sightedness at DuPont; to him, the company seeks to commercialize products rapidly or lose interest in the technology. He points out that commercialization of Dylux technology took about eight years, and he feels that there were many projects that would have succeeded commercially with just a little more time and some support. He says that the policy of moving managers around frequently meant that people who did not fully understand the field made important policy decisions. Furthermore, important experience is being forgotten or discounted because of rapid technological changes. He does, however, name a number of "heroes" from DuPont, many of them friends for life. Dessauer believes that his main contribution is to have kept alive this chemistry, fighting for support in often-hostile environments. He points out that he was lucky to have good health, enough resources to get by, and a personality that led to a large network. Despite all his complaints, he had fun finding uses for dyes. Asked if he would do it all again, he says yes; in fact, he would go back to work right now, if he could.

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\n\n

Primary Entity<\/h3>\n
<http:\/\/www.worldcat.org\/oclc\/1124852332<\/a>> # Oral history interview with Rolf Dessauer,<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:CreativeWork<\/a>, library:ArchiveMaterial<\/a> ;\u00A0\u00A0\u00A0\nlibrary:oclcnum<\/a> \"1124852332<\/span>\" ;\u00A0\u00A0\u00A0\nlibrary:placeOfPublication<\/a> <http:\/\/id.loc.gov\/vocabulary\/countries\/pau<\/a>> ;\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/chemistry_research_united_states<\/a>> ; # Chemistry--Research--United States<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/chemists_united_states<\/a>> ; # Chemists--United States<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/chemists<\/a>> ; # Chemists<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/research_industrial_united_states<\/a>> ; # Research, Industrial--United States<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Organization\/dx_imaging_firm<\/a>> ; # DX Imaging (Firm)<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/photochemistry_research<\/a>> ; # Photochemistry--Research<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Organization\/e_i_du_pont_de_nemours_&_company<\/a>> ; # E.I. du Pont de Nemours & Company.<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/photochemistry_research_united_states<\/a>> ; # Photochemistry--Research--United States<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/chemistry_research<\/a>> ; # Chemistry--Research<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Person\/dessauer_rolf<\/a>> ; # Rolf Dessauer<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Place\/united_states<\/a>> ; # United States.<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Topic\/research_industrial<\/a>> ; # Research, Industrial<\/span>\n\u00A0\u00A0\u00A0\nschema:alternateName<\/a> \"Dessauer oral history interview.<\/span>\" ;\u00A0\u00A0\u00A0\nschema:alternateName<\/a> \"Rolf Dessauer oral history interview.<\/span>\" ;\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Person\/hunter_sarah_l_1985<\/a>> ; # Sarah L. Hunter<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Organization\/chemical_heritage_foundation<\/a>> ; # Chemical Heritage Foundation.<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Person\/domush_hilary<\/a>> ; # Hilary Domush<\/span>\n\u00A0\u00A0\u00A0\nschema:creator<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/9594509280#Person\/dessauer_rolf<\/a>> ; # Rolf Dessauer<\/span>\n\u00A0\u00A0\u00A0\nschema:datePublished<\/a> \"2012<\/span>\" ;\u00A0\u00A0\u00A0\nschema:description<\/a> \"Rolf Dessauer was born in Nuremberg, Germany, one of two sons of a physician and a housewife. His family fled to the United States after Kristallnacht, eventually settling in Flushing, New York. After service in the US Army, Dessauer received his bachelor\'s and master\'s degrees from the University of Chicago, and a PhD in organic chemistry from the University of Wisconsin. Dessauer began his career at E. I. du Pont de Nemours & Company, working at the Jackson Laboratory on dyes and UV-screening agents. He developed dyes for Alcoa\'s anodized aluminum, discovered a way to color Teflon, and taught dye chemistry to employees at DuPont\'s Ducilo plant in Buenos Aires. Although his inventions often met with resistance, his work on UV-screening agents was a commercial success. Reassigned to DuPont\'s Experimental Station, Dessauer began work on photochromic materials, leading to imidazole derivatives, which formed stable colored free radicals on exposure to light. When mixed with leucodyes, these hexaarylbiimidazoles (nicknamed HABIs) produced colors. The project was called ultraviolet imaging (UVI) and it initially generated interdepartmental enthusiasm. By exposing a coated paper to ultraviolet light--or visible then UV light--one could form negative- or positive-mode images. Paper was coated on both sides; the product thus produced was named Dylux 503 proof paper and it found wide acceptance in the printing industry from 1969 to 2010. Additionally, HABIs were found to be useful in photoinitiating polymerization, leading to successful color proofing systems and a family of photoresists; under certain conditions, coatings containing HABIs promoted changes in adhesion. Dessauer\'s job then was to find other uses for HABIs. He developed photodecoration for leather and for furniture, early bar code labels, color cathode ray tubes, and an identification system for patients\' specimens at Georgetown University. Again, Dessauer had to fight for support for his projects. There are now at least eighteen hundred U.S. patents involving the HABI family, most of the first four hundred of them granted to DuPont. Dessauer had been at DuPont for thirty-five years when DuPont and Xerox formed a new company, DX Imaging (DXI), to market newly invented photopolymer electrography. Dessauer left DuPont to work at DXI, but the company was closed down after three years. He became a consultant for DuPont, Xerox and a number of other companies, including Hewlett Packard, and this work resulted in another patent. Since then Dessauer has also written histories of his work--notably, Photochemistry, history and commercial applications of hexaarylbiimidazoles: all about HABIs, published by Elsevier--and he is writing an e-book about color. He also plans to write an entry for Wikipedia. Additionally, with his friend, the late Thomas Gravell, Dessauer made a study of watermarks of early postage stamps and documents, printing on Dylux 503. He and his wife, a long-time friend from Germany, visit Philadelphia often, exploring restaurants and theaters. He keeps up with the biimidazole literature and is still thinking about the unsolved problem of tackiness. He has contributed records of his work to the Hagley Museum and Library. Dessauer bemoans the current lack of long-sightedness at DuPont; to him, the company seeks to commercialize products rapidly or lose interest in the technology. He points out that commercialization of Dylux technology took about eight years, and he feels that there were many projects that would have succeeded commercially with just a little more time and some support. He says that the policy of moving managers around frequently meant that people who did not fully understand the field made important policy decisions. Furthermore, important experience is being forgotten or discounted because of rapid technological changes. He does, however, name a number of \"heroes\" from DuPont, many of them friends for life. Dessauer believes that his main contribution is to have kept alive this chemistry, fighting for support in often-hostile environments. He points out that he was lucky to have good health, enough resources to get by, and a personality that led to a large network. Despite all his complaints, he had fun finding uses for dyes. 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