Patent
Carrier for use in developing device of electrostatic latent image and production thereof
Junji Machida,Junji Ohtani,Eiichi Sano,Masahiro Anno,Toshitaro Kohri,Yukio Tanigami,Makoto Kobayashi +6 more
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TLDR
In this paper, a carrier coated by a polymer particle layer containing fine magnetic particles around a magnetic core, which may contain an electrical charge controlling agent, and the core may be pre-treated with a coupling reagent; the carrier gives excellent clearness to the copy and durability at repeating use.Abstract:
The present invention provides a carrier coated by a polymer particle layer containing fine magnetic particles around a magnetic core, which may contain an electrical charge controlling agent, and the core may be pre-treated with a coupling reagent; the carrier gives excellent clearness to the copy and durability at repeating use.read more
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Patent
Coated carrier particles for electrographic developers
TL;DR: In this article, a mixture of the carrier particles and toner particles was proposed for use in dry electrographic developers, each of which comprises a core particle having a polymeric overcoat comprising poly(p-t-butylstyrene) or a copolymer of poly(t)-butyl styrene and a C 1 -C 4 alkyl methacrylate, wherein the polymer further comprises sulfur-containing end groups.
Patent
Circuit-forming charging powder and multilayer wiring board using the same
TL;DR: A circuit-forming charging powder allowing circuit patterns to resist being peeled off a printing object when the powder is used for printing a circuit pattern by an electrophotographic method on the object is described in this paper.
Patent
Spherical magnetic particles for magnetic toner and process for producing the same
TL;DR: In this paper, the authors proposed spherical magnetic particles suitable for use in a magnetic toner, which particles comprise Fe 2+ -containing iron oxide particles which: (a) have an average particle diameter of from 0.05 to 0.30 µm; (b) contain from 1.7 to 4 5 atm% of silicon, calculated as Si, based on Fe; (c) contain not more than 0.35 wt% of sulfur based on the total weight of said Fe 2 + -containing IRO particles; (d) have a sphericity
Patent
Coated carrier particles and electrographic developers containing them
TL;DR: In this paper, a mixture of the carrier particles and toner particles is used for dry electrographic developers, each of which comprises a core particle having a polymeric overcoat comprising a blend of a fluorine-containing polymer and a modifying polymer comprising poly(p-t-butylstyrene) or a copolymer of p-tbutyl styrene and a C 1 -C 4 alkyl methacrylate.
Patent
Non-stoichiometric lithium ferrite carrier
TL;DR: A non-stoichiometric lithium ferrite powder having a compositional range represented by the formula: (Li.sub.sub 3 ) 1.00-x where 0.35
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Methods and solutions for treating male pattern alopecia
Charles A. Chidsey,Guinter Kahn +1 more
TL;DR: In this paper, a method for treating the form of alopecia commonly known as "male pattern baldness" which comprises regular topical application to the affected areas of the human scalp of a composition containing as at least one of its active ingredients 6-amino-1,2-dihydro-1-hydroxy-2-imino-4piperidinopyrimidine.
Patent
An electrostatic developer containing modified silicon dioxide particles
TL;DR: A developer material comprising colored toner particles having a particle size less than about 30 microns and a minor proportion of submicroscopic silicon dioxide additive particles having at least a portion of the silicon atoms on the outside surface of silicon dioxide particles directly attached through an oxygen atom to another silicon atom which is in turn directly connected through a carbon linkage to one to three organic groups as mentioned in this paper.
Patent
Use of plasma polymerized organosilicon films in fabrication of lift-off masks
TL;DR: In this article, the process includes deposition of thin plasma polymerized organosilicon barrier film over a radiation insensitive polymeric base layer previously coated on a substrate, followed by thermal annealing of the plasminarized barrier layer, over which is then coated a radiation sensitive resist layer.
Patent
Electrographic developing composition and process
TL;DR: In this article, an electrographic developing composition containing finely divided carrier particles and finely divided toner particles having incorporated therein a fusible, cross-linked binder polymer was presented.
Patent
Electrographic carrier vehicle and developer composition
Abstract: A "BLENDED" CARRIER VEHICLE FOR USE IN ELECTROGRAPHIC DEVELOPERS, PARTICULARLY MAGNETIC BRUSH DEVELOPERS, IS DESCRIBED. THE CARRIER VEHICLE IS COMPOSED OF A MIXTURES OF (A) FINELY-DIVIDED CORE PARTICLES HAVING A RESINOUS COATING OF A METAL ION-LINKED A-OLEFIN-CARBOXYLIC ACID COPOLYMER AND (B) CORE PARTICLES HAVING A RESINOUS COATING OF A VINYLIDENE CHLORIDE-CONTAINING COPOLYMER. ELECTROGRAPHIC DEVELOPERS CONTAINING TONER PARTICLES ADMIXED WITH SUCH "BLENDED" CARRIER VEHICLES ARE ALSO DISCLOSED.