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Dive into the research topics where Roger Lee Klaus is active.

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Featured researches published by Roger Lee Klaus.


Journal of Dispersion Science and Technology | 2005

Precipitation of Monodispersed Silver Halide Emulsions Using Water‐Soluble Ortho‐Substituted Aryl Disulfides

Sang H. Kim; Roger Lee Klaus; George J. Burgmaier

Abstract Silver bromoiodide photographic emulsions were precipitated using water‐soluble aryl disulfides. The emulsions studied were sub‐micron regular (nontabular) crystals containing less than 5% iodide, precipitated with ammonia and/or thioether. When compared to their para‐substituted counterparts, water‐soluble ortho‐substituted aryl disulfides provided improved monodispersity along with no observed formation of large tabular grains. A proposed mechanism for the decreased ripening effect of the ortho‐substituted isomer involved an in situ reduction of the disulfide to a ring‐closed species that did not interact with silver ion.


Archive | 1992

Silver halide photographic emulsions sensitized in the presence of organic dichalcogenides

Roger Lee Klaus; Ingo Herwig C O Eastma Leubner; Michael Edward C O Eastma Ryan


Archive | 2011

Article with metal grid composite and methods of preparing

Debasis Majumdar; Roger Lee Klaus; Michael J. Corrigan


Archive | 1992

Aqueous, solid particle dispersions of dichalcogenides for photographic emulsions and coatings

John W. Boettcher; Roger Lee Klaus; Joseph William Manthey


Archive | 1994

Water-soluble disulfides in silver halide emulsions

Jerzy A. Budz; George J. Burgmaier; Roger Lee Klaus; Xin Wen


Archive | 2012

Electronically conductive laminate donor element

Debasis Majumdar; Roger Lee Klaus; Michael J. Corrigan


Archive | 1987

Photographic element containing a macrocyclic ether compound

Arthur Herman Herz; Roger Lee Klaus


Archive | 1993

Silver halide photographic emulsions sensitized in the presence of organic disulfides and sulfinates

Roger Lee Klaus; Patricia Ann Leonard


Archive | 2004

Boron compounds as stabilizers in photothermographic materials

James B. Philip Jr.; Doreen C. Lynch; William D. Ramsden; Roger Lee Klaus; Stacy M. Ulrich


Archive | 2001

HIGH BROMIDE TABULAR GRAIN EMULSIONS PRECIPITATED IN A NOVEL DISPERSING MEDIUM

Seshadri Jagannathan; Julia S. Tan; Roger Lee Klaus; Philip J. Zola

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