Patents Represented by Attorney Thomas C. Doyle

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  • Treatment of leather with resins and lacquers derived from polyaminoacrylates
    Patent number: 4659630
    Abstract: A lacquer composition comprising a water soluble reaction product of(a) a water soluble acrylic polymer or copolymer having pendant amine groups, and(b) a glycidyl ether of a di- or polyhydric alcohol or monomeric phenolic compound having 2-4 aromatic hydroxy groupswith the proviso that per amine equivalent of component (a) 0.5-0.85 epoxide equivalents of component (b) are present, the reaction product being hardened by a mixture of component (b) above and a glycidyl ether of a polymeric phenol-aldehyde condensate or of polyamine derived from ethyleneimine and/or propyleneimine.The composition is useful for coating such substrates as leather.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: April 21, 1987
    Assignee: Sandoz Ltd.
    Inventor: Werner Walther
  • Binding agent aqueous dispersions having improved coagulation properties
    Patent number: 4657957
    Abstract: A method of regulating the coagulation characteristics of a binding agent aqueous dispersion which comprises adding thereto a compound of the formula ##STR1## in which R is an unsubstituted or hydroxy substituted alkyl or alkenyl radical,A is --O--CH.sub.2 --CH.sub.2 -- or --O--CH.sub.2 --CHOH--CH.sub.2 --,p is zero or 1,X is ##STR2## wherein r is an integer and both R.sub.x 's are hydrogen or one is a methyl or an ethyl radical and the other is a hydrogen atom,Y and Z are, independently, R--(A).sub.p --, as defined above, or a group as represented by but independent of X,m is zero or an integer 1 to 5, andn is an integer 2 to 6, the compound containing at least one group of the type represented by X, and being in free base, acid addition salt or quaternary ammonium salt form.Such modified binder dispersions are advantageous for the production of non-woven fabrics.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: April 14, 1987
    Assignee: Sandoz Ltd.
    Inventors: Hans-Peter Baumann, Marcel Grossmann
  • Aftertreatment of dyed or printed textiles with a polymeric polybasic amino compound
    Patent number: 4645511
    Abstract: Aftertreatment of textile fibres which have been optically brightened or dyed or printed with certain direct dyes, or with basic or sulphur dyes, increases wet-fastness properties. The aftertreatment agent is a polymeric, polybasic amino compound, which is applied under alkaline conditions.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: February 24, 1987
    Assignee: Sandoz Ltd.
    Inventors: Jurg Heller, Bruno Kissling, Tibor Robinson, Salvatore Valenti
  • Exhaust dyeing of cellulosic substrates with reactive dyes controlled simultaneous addition of salt and alkali
    Patent number: 4645510
    Abstract: The invention provides a process for the exhaust dyeing with a reactive dyestuff of a textile material comprising cellulosic fibres, which process comprises the step of adding to the dyebath containing the reactive dyestuff, simultaneously the salt and the alkali in specified quantities metered per unit time so as to give a substantially linear exhaustion of the dyebath.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: February 24, 1987
    Assignee: Sandoz Ltd.
    Inventors: Rolf Hasler, Francis Palacin
  • Process for exhaust dyeing a textile fiber material: controlled addition of dye or electrolyte
    Patent number: 4629465
    Abstract: The invention relates to a process for exhaust dyeing a textile fibre substrate to obtain level dyeings, which process comprises the step of adding to the dyebath the effective amount of dyestuff or electrolyte or dyestuff and electrolyte either simultaneously or one after the other in specified quantities per cycle of the dyeing machine, metered according to a mathematical function.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: December 16, 1986
    Assignee: Sandoz Ltd.
    Inventors: Rolf Hasler, Francis Palacin
  • Method of dyeing wool with acid dyestuffs
    Patent number: 4622045
    Abstract: The invention provides a process for dyeing a textile substrate comprising wool fibres, which process comprises bringing the substrate into contact with an aqueous dyebath containing an acid dyestuff or a mixture of acid dyestuffs having(a) a build-up power on wool of from 90 to 98% at pH 4.5; together with(b) a migrating ability on wool of from 25 to 40%, at pH 4.5;(a) and (b) being determined under specific conditions, in the presence of a levelling agent which is the alkoxylation product of an amine substituted by a fatty saturated or unsaturated residue, the aqueous dyebath containing a mixture of acid dyestuffs when the substrate is a wool/synthetic polyamide fibre blend.These dyestuffs give level, fast and reproducible dyeings of a high quality.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: November 11, 1986
    Assignee: Sandoz Ltd.
    Inventors: Josef Frauenknecht, Karl Zeller
  • Stable aqueous dispersions of non-oxidized paraffin wax
    Patent number: 4619703
    Abstract: Aqueous wax dispersions containing a non-oxidized paraffin wax, a cationic surfactant of formula I ##STR1## in which the significances of the symbols are given in the text, and optionally a cold stabilizer such as ethylene glycol, have excellent stability when used for textile finishing under high-shear conditions, for example in jet dyeing machines.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: October 28, 1986
    Assignee: Sandoz Ltd.
    Inventors: Hans Gerber, Eckart Schleusener
  • Process for improving fastness of sulphur dyeing on hydroxy group containing fibers
    Patent number: 4615707
    Abstract: A process for improving the fastness properties of a sulphur dyestuff on a substrate comprising hydroxy group-containing fibres by applying to the dyed or printed substrate the reaction product (R) of(A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyanodiamide, guanidine or bi-guanidine; said product containing reactive hydrogen atoms bound to nitrogen, and(B) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amidein the presence of (C) a catalyst for the crosslinking of N-methylol compounds of the type (B) above, and subsequently carrying out a heat-curing step.These compounds are useful for the aftertreatment of textile material.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: October 7, 1986
    Assignee: Sandoz Ltd.
    Inventor: Tibor Robinson
  • Benzofuranone or indolinone compounds useful as stabilizers for organic materials
    Patent number: 4611016
    Abstract: The present invention relates to a process for stabilizing organic polymeric materials comprising incorporating therein a benzofuran (2) one or indolin (2) one compound as stabilizer. Such stabilized polymeric materials are stabilized against degradation during the polymer processing.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: September 9, 1986
    Assignee: Ciba-Geigy Corp.
    Inventors: Hans Hinsken, Horst Mayerhoefer, Wolfgang Mueller, Hermann Schneider
  • After treatment of anionic dyeings, printings and optical brightenings on textile fibers
    Patent number: 4604101
    Abstract: Dyeings on hydroxy group- or nitrogen-containing fibres are improved by aftertreatment, simultaneously or sequentially, with (A) a polymeric reaction product of an amine with cyanamide, dicyandiamide, quanidine or bisguanidine and (B) a quaternary polyalkylene polyamine. A synergistic effect between (A) and (B) is observed.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: August 5, 1986
    Assignee: Sandoz Ltd.
    Inventors: Bruno Kissling, Tibor Robinson
  • Treatment of textile materials to improve the fastness of dyeings made thereon
    Patent number: 4599087
    Abstract: Polymeric compounds (A) obtained by the reaction of epihalohydrin with a polyalkylene polyamine are useful as textile treatment agents. As pretreatment agents they improve the color yield of the subsequent dyeing, as aftertreatment agents they improve fastness properties. Certain of the products (A) are novel.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: July 8, 1986
    Assignee: Sandoz Ltd.
    Inventors: Jurg Heller, Bruno Kissling, Tibor Robinson, Salvatore Valenti
  • Process for sealing anodically oxidized aluminium or aluminium alloy surfaces
    Patent number: 4588448
    Abstract: A process for sealing an oxidized aluminium or aluminium alloy surface comprising sealing the surface in the presence of a sealing agent to hinder the formation of a smut layer, the agent being the reaction product of one or more sulphonated aromatic compounds with an aldehyde and/or dimethylolurea or a mixture of formaldehyde and urea. A novel composition comprising the reaction product above and a cobalt or nickel salt may also be used as the above mentioned sealing agent.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: May 13, 1986
    Assignee: Sandoz Ltd.
    Inventors: Hans-Peter Baumann, Carl T. Speiser, Ernst Weisskopf
  • Phenolamines
    Patent number: 4582649
    Abstract: Compounds of formula I ##STR1## in which R.sub.1 is an aliphatic C.sub.6-22 residueR.sub.2 is an optionally substituted salicyl groupeach R.sub.3, independently, is H or an optionally substituted salicyl groupn is 0 or an integer from 1 to 10each X, independently, is --C.sub.2 H.sub.4 -- or --C.sub.3 H.sub.6 --provided that the molecule contains from 1 to 5 optionally substituted salicyl groups in free base, protonized or quaternized form, are useful as dyeing or printing after-treatment agents, particularly to improve the oxidative wet fastness of dyeings or printings on cellulose containing material.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: April 15, 1986
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Wet treatment of cellulosic textiles using mixed anionic and non-ionic wetting agents
    Patent number: 4579559
    Abstract: A method for treating a textile substrate comprising cellulosic fibres with an aqueous treatment liquor containing a mixture of(a) a secondary hydrophilic sulphonated n-paraffin containing at least 9 carbon atoms, and(b) an orthophosphoric acid triester, the weight ratio a:b being of from 1.4-4.0:1. This mixture of anionic and non-ionic wetting agents is particularly suitable for use in an aqueous medium having a high electrolyte content.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: April 1, 1986
    Assignee: Sandoz Ltd.
    Inventor: Jose Canela
  • Method for degreasing natural skins, hides and pelts
    Patent number: 4572721
    Abstract: Skins, hides and pelts are effectively degreased under mild conditions prior to tanning, in the presence of an organic primary, secondary or tertiary amine having surface-active properties and containing at least one lipophilic residue and at least one ethylene oxide unit, optionally in admixture with a non-ionic emulsifier.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: February 25, 1986
    Assignee: Sandoz Ltd.
    Inventor: Bernard Danner
  • Use of certain esters as pH regulators in textile finishing processes
    Patent number: 4568351
    Abstract: A textile finishing process in which there is employed, as a pH regulator, a compound or a mixture of compounds of formula I ##STR1## in which p is from 1 to 20,R is hydrogen, C.sub.1-3 alkyl or C.sub.1-3 alkyl substituted by hydroxyR' has independently one of the significances given for R or is --CO--R andA is --CH.sub.2 CH.sub.2 --; --CH.sub.2 --CH.sub.2 --CH.sub.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: February 4, 1986
    Assignee: Sandoz Ltd.
    Inventors: Jose M. Palleiro Cardona, Karl-Heinz Weible
  • Alkali treatment of cellulosic fiber goods
    Patent number: 4568349
    Abstract: The invention relates to a process for alkali-dry treating cellulosic fibre goods comprising the steps of(a) treating the goods with an aqueous caustic soda solution of 18.degree.-26.degree. Baume, followed by(b) drying the treated goods under tension without an intermediate rinsing or neutralization step.The aqueous caustic soda solution used in step (a) may further contain a lubricant and wetting agents.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: February 4, 1986
    Assignee: Sandoz Ltd.
    Inventor: Angelo Rizzardi
  • One-bath method for producing tone-in-tone dyeings on sueded wool- or fur-bearing skins
    Patent number: 4560386
    Abstract: Disclosed is a method for dyeing sueded wool- or fur-bearing skins tone-in-tone in a single bath and in one step. The dyeing is carried out with reactive dyestuffs bearing at least one reactive group selected from acryloylimino, halogenoacryloylimino and .beta.-halogenopropionylimino, in the presence of non-ionic or anionically modified polyalkoxylated surfactants.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: December 24, 1985
    Assignee: Sandoz Ltd.
    Inventors: Tony A. Hopkins, Rudolf Seitz
  • Method for improving the fastness of dyeings and optical brightenings with amine, cyanamide derivative and epihalohydrin condensate
    Patent number: 4559058
    Abstract: A precondensate obtained by reacting(A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and(B) an epihalohydrin is obtained in the form of a stable aqueous dispersion by acidifying the reaction product, optionally in the presence of a water-soluble polymer. The product is useful as an after-treatment agent to improve the fastness of dyeings on cotton, wool or silk.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: December 17, 1985
    Assignee: Sandoz Ltd.
    Inventors: Brian Bennett, Donald K. Clough
  • Solutions of U.V. absorbers useful for improving the light fastness of dyeings on polyester
    Patent number: 4557730
    Abstract: The invention provides a solution of one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and a benzophenone; and an emulsifier in an organic solvent system.The solutions of the invention are useful for providing level dyeings of polyester material particularly for use in the automotive industry.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: December 10, 1985
    Assignee: Sandoz Ltd.
    Inventors: Brian Bennett, Donald K. Clough