Patents by Inventor Brian Parton
Brian Parton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 5188641Abstract: A colored polymer containing repeat units derived from at least one azo dye which is free from water-solubilizing groups and contains at least one polymerizable olefinically unsaturated group and has the formula:A--N.dbd.N--Ewherein A represents the residue of a carbocyclic or heterocyclic diazotisable amine containing at least one electron-withdrawing substituent and E represents the residue of a carbocyclic or heterocyclic coupling component with the proviso that when both A and E are carbocyclic, the residue of the diazotisable amine does not contain a nitro or chloro substituent except when another different electron-withdrawing substituent is also present, the or each polymerizable group being attached to a carbon atom forming part of residue A or E.Type: GrantFiled: January 9, 1992Date of Patent: February 23, 1993Assignee: Imperial Chemical Industries PLCInventor: Brian Parton
-
Patent number: 5102448Abstract: A method of printing in which a solid ink composition is melted and ejected from a small orifice in the form of small drops directed towards a substrate on which an image is to be formed, characterized in that the solid ink composition comprises either a solution or a dispersion of a dye or a finely divided pigment in a halogenated hydrocarbon having a melting point of at least 50.degree. C. ("Ink A"), or a colored condensation polymer obtained by reacting a polymerizable lactone or a hydroxyalkanoic acid with a dye containing at least one active hydrogen atom ("Ink B").Type: GrantFiled: November 21, 1989Date of Patent: April 7, 1992Assignee: Imperial Chemical Industries PLCInventors: Brian Parton, Donald M. Gunn
-
Patent number: 4933426Abstract: Colored condensation polymers useful as replacements for waxes in a thermal wax transfer process, said polymers being obtained by reacting a polymerizable lactone or a hydroxyalkanoic acid with a dye containing at least one active hydrogen atom.Type: GrantFiled: March 15, 1989Date of Patent: June 12, 1990Assignee: Imperial Chemical Industries PLCInventors: Robert D. McClelland, Brian Parton
-
Patent number: 4763371Abstract: A method for the coloration of textile materials which comprises applying thereto by a printing or continuous dyeing technique a colored polymer containing repeat units derived from at least one organic dye containing two or more polymerizable olefinically unsaturated groups.Type: GrantFiled: June 4, 1986Date of Patent: August 16, 1988Assignee: Imperial Chemical Industries PLCInventor: Brian Parton
-
Patent number: 4512773Abstract: A dyestuff of formula: ##STR1## wherein: the groups X.sub.1 and X.sub.2 are independently hydrogen, halogen, alkyl, aryl, alkoxy, cyano, optionally substituted amino or carboxylic acid ester groups; (R).sub.n represents n substituents R each of which is independently halogen, lower alkyl, lower alkoxy or --COOH and n is 0 or 1; R.sub.1 is hydrogen, or optionally substituted lower alkyl; Y is an optionally substituted aliphatic or optionally substituted araliphatic group; R.sub.2 is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl; R.sub.3 is hydrogen or an optionally substituted alkyl or aralkyl group; A.sup.- is an anion; a is 0 or 1; and Z is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl.The dyes are useful for the coloration of materials such as textiles, leather, inks and lacquers.Type: GrantFiled: May 10, 1983Date of Patent: April 23, 1985Assignee: Imperial Chemical Industries PLCInventors: Kenneth Anderton, Nigel Hall, Brian Parton, Andrew H. M. Renfrew, Malcolm G. Shaw
-
Patent number: 4167509Abstract: Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula (I) ##STR1## wherein R is a hydrogen atom, halogen atom, cyano, nitro, hydroxy or amino group or an organic radical, R.sup.1 is a hydrogen atom, an optionally substituted hydrocarbon or heterocyclic radical or an amino group which may be substituted, Y is a group --COR.sup.2 or ##STR2## wherein R.sup.2 is an alkyl group having two or more carbon atoms, R.sup.3 is an alkyl group of more than three carbon atoms or an aralkyl group and R.sup.4 is hydrogen or an optionally substituted alkyl or aryl group, K.sup.+ is a cationic group, X.sup.- is an anion and the ring A may carry further substituents or have a benz ring fused thereon. Process for manufacture of the dyestuffs and their use for the coloration of synthetic polymers, in particular polyacrylonitrile and copolymers thereof.Type: GrantFiled: November 29, 1976Date of Patent: September 11, 1979Assignee: Imperial Chemical Industries LimitedInventor: Brian Parton
-
Patent number: 4124579Abstract: Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula (I) ##STR1## wherein R is a hydrogen atom, halogen atom, cyano, nitro, hydroxy or amino group or an organic radical, R.sup.1 is a hydrogen atom, an optionally substituted hydrocarbon or heterocyclic radical or an amino group which may be substituted, Y is a group --OCOR.sup.2, --OSO.sub.2 R.sup.2 or --NHSO.sub.2 R.sup.2 wherein R.sup.2 is optionally substituted alkyl or aryl, K.sym. is a cationic group, X.crclbar. is an anion and the ring A may carry further substituents or have a benz ring fused thereon. Manufacture of such dyestuffs and use in the dyeing of synthetic polymeric materials.Type: GrantFiled: November 29, 1976Date of Patent: November 7, 1978Assignee: Imperial Chemical Industries LimitedInventor: Brian Parton
-
Patent number: 4113717Abstract: Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula I: ##STR1## wherein A.sym. is a positively-charged aromatic or heterocyclic group, X.crclbar. is an anion; R is hydrogen or an optionally-substituted alkyl, aryl, aralkyl or cycloalkyl group, R.sup.1 is hydrogen, or an optionally-substituted alkyl or aralkyl group and the quinoline ring may be further substituted, and processes for the manufacture of such dyestuffs which are useful for the coloration of synthetic polymeric materials such as acrylonitrile polymers and copolymers.Type: GrantFiled: January 12, 1976Date of Patent: September 12, 1978Assignee: Imperial Chemical Industries LimitedInventor: Brian Parton
-
Patent number: 3996221Abstract: Dyestuffs of the formula ##STR1## WHEREIN (R).sub.n represents n substituents R each of which may be independently halogen, lower alkyl, lower alkoxy or COOHR.sup.1 is H, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl,n is 0-3,(a+b) is 0-4,X is O, S or NR.sup.2, where R.sup.2 is H or optionally substituted lower alkyl,Y is an optionally substituted aliphatic or optionally substituted araliphatic linking group, andEach Z is independently a H or a cellulose-reactive group, and when (a+b) is O there is at least one SO.sub.3 H group as substituent on the groups R.sup.1, X or Y.The dyestuffs when both Z are H are valuable acid dyes, e.g. for wool, and when one or both Z are reactive groups the dyestuffs are valuable reactive dyestuff especially for cellulose fibers.Type: GrantFiled: January 9, 1975Date of Patent: December 7, 1976Assignee: Imperial Chemical Industries LimitedInventors: John Lindley Leng, Brian Parton, Denis Robert Annesley Ridyard, John Robert Lawson