Plural Hydroxy Groups Or Esters Thereof Bonded Directly To A Monocyclic Benzene Ring (h Of Hydroxy May Be Replaced By A Substituted Or Unsubstituted Ammonium Ion Or Metal) Patents (Class 534/682)
Abstract: Electrowetting apparatus including a compound comprising a plurality of colorant moieties and a linker. The plurality of colorant moieties includes a first colorant moiety having a first net dipole and a second colorant moiety having a second net dipole, wherein the plurality of colorant moieties are linked by and disposed around the linker so that the first net dipole and the second net dipole at least partially cancel each other.
Type:
Application
Filed:
March 28, 2014
Publication date:
July 31, 2014
Inventors:
Robin Leguijt, Romaric Mathieu Massard, Jurriƫn Mans, Muhammad Arief Adityaputra
Abstract: This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electro-photographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are reacted with diol monomers to form an invention polyester dye. A present invention toner composition comprises particulate polyester dye, and one or more optional components such as a charge control agent or a surfactant.
Type:
Grant
Filed:
September 3, 1997
Date of Patent:
December 14, 1999
Assignee:
Hoechst Celanese Corporation
Inventors:
Marie Borzo, Rao D. Mikkilineni, Kophu Chiang, Eui-Won Choe, Hyun-Nam Yoon
Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.
Type:
Grant
Filed:
August 20, 1997
Date of Patent:
September 22, 1998
Assignee:
Polaroid Corporation
Inventors:
Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
Abstract: A corrosion protection material and method for anon-metal alloys, particularly light aluminum alloys; the method comprises the steps of coating a material to be protected with a layer containing a chromium-free inhibitor, comprising at least one dihydroxyazoic salt having structural unit (a), wherein Y is a salt producing anion and M is a metal; for the same number of moles, protection with an effectiveness comparable to that of chromate inhibitors may thus be achieved; ##STR1##
Abstract: A process has been found for dyeing and printing pater, wood, plastic or metal, in which dyestuffs which, in the form of the free acid, correspond to the formula (I) ##STR1## wherein A denotes a phenol radical which is optionally substituted by alkyl or cycloalkyl andn represents 0 or 1,are employed.
Type:
Grant
Filed:
October 19, 1995
Date of Patent:
March 4, 1997
Assignee:
Bayer Aktiengesellschaft
Inventors:
Karin Hassenruck, Peter Wild, Martin Michna
Abstract: Polyazo dyes useful for dyeing leather in the free form or as copper, chromium, iron, cobalt or nickel complexes have the formula ##STR1## where m is 0, 1 or 2, n is 0 or 1, p is from 1 to 2, q is from 0 to 1, and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, X, Y and the ring A are each as defined, and may be prepared from aniline derivatives of the formula ##STR2## where m is 0, 1, or 2, n is 0 or 1, and X, R.sup.1, R.sub.2 and R.sup.3 are each as defined.
Type:
Grant
Filed:
July 31, 1990
Date of Patent:
April 14, 1992
Assignee:
BASF Aktiengesellschaft
Inventors:
Guenter Hansen, Georg Zeidler, Ortwin Schaffer
Abstract: Monoazo pigments are provided which have improved properties achieved by incorporating certain azomethine compounds. The pigment compositions are prepared by reacting a primary amine-terminated alkylene oxide polymer and an acetoacetanilide to form an azomethine coupler and subsequently preparing the monoazo pigment composition by reacting the desired diazo component and coupling component in the presence of the azomethine coupler so as to form an azomethine composition of matter and the desired pigment.
Type:
Grant
Filed:
March 22, 1990
Date of Patent:
June 18, 1991
Assignee:
Sun Chemical Corporation
Inventors:
Russell J. Schwartz, Manuel Z. Gregorio
Abstract: A method for converting ether groups such as alkyl or aryl ether groups including hydroquinone ether groups to hydroxyl groups and ester groups such as alkyl or aryl ester groups to carboxylic acid groups which comprises reacting a compound including at least one ether and/or ester group with a 2-halo-1,3,2-benzodioxaborole to form an intermediate and hydrolyzing the intermediate such as by quenching it into water to form the desired final product.
Abstract: Novel chrome complexed azo and azomethine yellow dye developers which include a substantially colorless symmetrical ligand. Also disclosed are photographic products and processes which utilize the dye developers.
Abstract: Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound having a releasable yellow dye moiety or precursor thereof, the compound having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) Z represents alkyl, substituted alkyl, aryl or substituted aryl;(c) R represents CN or J-L;(d) J represents a bivalent ##STR2## (e) L represents alkyl, substituted alkyl, aryl, substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring;(f) Z.sup.