Patents Assigned to Imperial Chemical Industries
  • Patent number: 4116998
    Abstract: Process for the preparation of esters of m-phenoxybenzyl alcohol and its .alpha.-cyano and .alpha.-ethinyl derivatives with carboxylic acids containing at least 6 carbon atoms by heating together a methyl or ethyl ester of the carboxylic acid, an ester of m-phenoxyphenyl alcohol or its .alpha.-cyano or .alpha.-ethinyl derivative with an acid of the formula R.CO.sub.2 H wherein R is an alkyl group containing not more than 3 carbon atoms, and tetramethyl or tetraethyl titanate at a temperature such that the methyl or ethyl ester of the acid of formula R.CO.sub.2 H is removed by distillation as it is formed.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: September 26, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: George Kenneth Makinson, David Schofield
  • Patent number: 4116802
    Abstract: An assembly for an electrolytic cell comprising a base plate of an electrically conductive metal which is unattacked by the electrolyte to be used in the cell, e.g. titanium, a plurality of anodes or anode support members mounted on and attached in electrical contact with one surface of the base plate, and an electrical conductor in the form of a metallic sheet electrically conductively bonded to the other surface of the base plate, e.g. a sheet of iron or steel, the bonding having been achieved by placing a metallic inter layer between the base plate and the conductor sheet, heating the inter layer to a temperature of at least 427.degree. and to a temperature at which the inter layer is molten, and applying elevated pressure to the base plate and to the conductor sheet.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: September 26, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Frank Smith
  • Patent number: 4115404
    Abstract: Substituted 2,6-dioxo-2,6-dihydrobenzo[1:2-b, 4:5-b.sup.1 ]difurans or -dipyrroles and processes for their manufacture. The compounds are dyestuffs which are particularly useful in the form of aqueous dispersions for application to polyester textile materials.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Colin William Greenhalgh, John Laurence Carey, David Francis Newton
  • Patent number: 4114384
    Abstract: A method of securing a fixing element such as a dowel in a drillhole in a rock mass wherein the element is grouted in position with calcium sulphate hemihydrate plaster (preferably alpha gypsum) gauged with a solution of a water-soluble salt of carboxy methyl cellulose.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Henry Kinny Kennedy-Skipton
  • Patent number: 4114820
    Abstract: A yarn winding apparatus of the type for winding yarn on cores comprising a drive roll; a rotatable head carrying on one side thereof two chuck carriers and chucks for holding cores, projecting from the rotatable head at right angles, the axis of the rotatable head being offset from the axis of the drive roll such that the carriers and chucks are wholly disposed on one side of the drive roll and the rotatable head being carried on a shaft which extends only from the side of the head opposite the carriers and chucks, the chuck carriers being carried on guide rails mounted on said head, the guide rail for one chuck carrier being laterally spaced to one side of the head axis, and in a plane perpendicular to the head axis, while the guide rail for the other chuck carrier is laterally spaced to the other side of the head axis, also in a place perpendicular to the head axis, the guide rails being long enough to allow the chuck carriers to pass over and under the rotatable head axis and to pass each other, to allow
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Andre Lafeber
  • Patent number: 4115580
    Abstract: The disclosure relates to .omega.-aryl substituted .omega.-nor prostaglandin analogues bearing an oxygenated function at C-10, such as a hydroxy radical, or a 9,10- or 10,11-epoxide. A typical compound is 16-(3-chlorophenoxy)-9.alpha.,10.beta.,11.alpha.,15.alpha.-tetrahydroxy-17 ,18,19,20-tetranor-5-cis,13-trans-prostadienoic acid. Also disclosed are chemical processes for the manufacture of said compounds, pharmaceutical and veterinary compositions containing said compounds, and a method of achieving luteolysis in mammals by the use of such compounds.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Jean Bowler, Graham Ernest Robinson
  • Patent number: 4115409
    Abstract: Novel 1-aryloxy-3-carbamoylalkylamino-2-propanol derivatives, processes for their manufacture, pharmaceutical compositions containing them and methods of using them in the treatment of heart diseases. The compounds possess .beta.-adrenergic blocking activity. Representative of the compounds disclosed is 1-(2-cyanophenoxy)-3-.beta.-(N-2-furfurylcarbamoyl)ethylamino-2-propanol.
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael Stewart Large, Leslie Harold Smith
  • Patent number: 4113717
    Abstract: 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: Grant
    Filed: January 12, 1976
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Brian Parton
  • Patent number: 4113879
    Abstract: Pharmaceutical compositions, containing a 4,4'-dihydroxy-3,3'-triphenylmethanedicarboxylic acid (or an oxidized derivative) as active ingredient, are described and are prepared conventionally in a form suitable for topical administration, e.g., ointment. The compositions are useful for the treatment of inflammatory diseases and inflammatory conditions of the skin. Many of the active ingredients are novel compounds. A representative novel active ingredient is 4"-cyano-4,4'-dihydroxy-5,5'-dimethyl-3,3'-triphenylmethanedicarboxylic acid.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Geraint Jones, David Summers Thomson
  • Patent number: 4113698
    Abstract: Process for the separation of a polyetherketone from the reaction product resulting from the nucleophilic polycondensation of (i) at least one alkali metal bisphenate with at least one dihalo compound, and/or (ii) at least one alkali metal halophenate, in an aromatic sulphone solvent of formula ##STR1## in which Y is a direct link, oxygen, or a pair of hydrogen atoms, and Z and Z' are hydrogen atoms or phenyl groups, comprising finely dividing the solidified reaction product, leaching out alkali metal halide with water and then heating the resultant finely divided material to a temperature of at least 200.degree. C but below its melting point under a vacuum to remove the water and aromatic sulphone by distillation.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Philip Anthony Staniland
  • Patent number: 4113803
    Abstract: A process for producing a thermoformable acrylic sheet comprising polymerizing an acrylic monomer in the presence of 0.02 - 3.0% by weight of a cross-linking agent, the reaction conditions being such that the fully polymerized sheet would have a reduced viscosity of 1.5 - 4.0 if cross-linking agent were absent.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Brian George Price
  • Patent number: 4113883
    Abstract: A pharmaceutical composition for use as an inhalation anaesthetic containing 1,2,2-trifluoroethyl difluoromethyl ether as active ingredient, and a method of using said ether to produce anaesthesia in a warm-blooded animal.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Robert David Bagnall
  • Patent number: 4113699
    Abstract: Aromatic polyetherketones and/or sulphones are produced by heating a halophenol of formula ##STR1## where X = halogen and is ortho or para to Q; Q = --CO-- or --SO.sub.2 --, Ar = an aromatic radical, with about 1/2 mole of a granular alkali metal carbonate per mole of halophenol in the presence of N-methyl pyrrolidone, dimethyl sulphone or an aromatic sulphone solvent at 200.degree.-400.degree. C.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: John Brewster Rose, Philip Anthony Staniland
  • Patent number: 4113465
    Abstract: Herbicidal and fungicidal compounds of the formula: ##STR1## wherein rings A and B are unsubstituted or carry one or more substituents which may be lower alkyl, halogen, lower alkoxy, cyano, nitro, lower alkylcarbonyloxy, methylene dioxy, amino, or mono- or dialkyl amino, and Het is a 1,2,4-triazolyl or imidazolyl group.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: September 12, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Margaret Claire Shephard, Balsubramanyan Sugavanam, Paul Anthony Worthington, David John Collins, David Griffin
  • Patent number: 4111956
    Abstract: Process for manufacture of the heterocyclic compounds of the formula: ##STR1## wherein X is cyano, acyl, alkylsulphonyl, arylsulphonyl, optionally substituted alkoxycarbonyl, nitro, phenyl or sulphamoyl, andY is hydrogen, optionally substituted alkyl or optionally substituted aryl, which comprises reacting a compound of the formula: ##STR2## with an acid halide in the presence of a compound of the formula ##STR3## and optionally in the presence of an aprotic solvent, and subjecting the resulting compound of the formula: ##STR4## or an acid salt thereof, to hydrolysis in acidic medium, wherein Z is hydrogen or an optionally substituted alkyl or aryl radical, and R.sup.2 and R.sup.3 each independently representing optionally substituted alkyl, cycloalkyl or aryl radicals, or R.sup.2 and R.sup.3 together form with the nitrogen atom a 5- or 6-membered nitrogen-containing heterocyclic ring.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: David Boyd Baird, James Stanley Campbell, Brian Ribbons Fishwick, Robert David McClelland
  • Patent number: 4111211
    Abstract: Smoking mixtures in film form comprising binder and filler, optionally with particulate fuel also, uncompacted throughout and having one surface closely configurated with parallel ridges are made by roll-milling a pasty aqueous mass of the ingredients, said mass having a low phase angle e.g. 2.degree. to 45.degree., and successive rollers of the roll-mill operating at successively higher peripheral speeds with the relative speeds and clearances adjusted to produce the ridges.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Henry Russell Hincklieff, Richard Hugh Banwell
  • Patent number: 4111625
    Abstract: Quenching molten polymeric films, especially polyester films, on casting surfaces by means of a combination of electrostatic and suction pinning.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Timothy Alan Remmington, William Robinson
  • Patent number: 4112023
    Abstract: A blend of powders suitable for use in powder/liquid moulding applications comprising a high molecular weight polymer powder of methyl methacrylate and a methyl methacrylate copolymer powder containing more than 7% but less than 15% by weight of 2-ethyl hexyl acrylate, both powders having defined particle sizes.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Christopher Robert Gore, Geoffrey George Arm
  • Patent number: 4111776
    Abstract: In apparatus for coulometric analysis provision is made for an automatic change of electrolyte in the event of certain forms of analytical failure.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: John Rickard Mansfield
  • Patent number: 4111929
    Abstract: Azo dyestuffs of the formula: ##STR1## wherein R is hydrogen, methyl or phenyl, R.sup.1 is methyl, ethyl or benzyl, R.sup.2 is methyl, ethyl, methoxy or chloro, n is 0 or 1 and when n is 1, R.sup.2 is in the 7-position of the tetrahydroquinoline ring and R.sup.3 is straight chain butyl, pentyl or hexyl and X is an anion; a process for the manufacture of such dyestuffs which are useful for the coloration of synthetic polymeric materials such as polyacrylonitrile and blends thereof.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: September 5, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: David Melville Fawkes