Patents Represented by Attorney Melvin H. Kurtz

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  • Detergent compositions
    Patent number: 4325829
    Abstract: A particulate detergent composition for fabric conditioning includes, in addition to a detergency active material, from 10-40% of a mixture of tripolyphosphate and orthophosphate in the ratio of 20:1 to 3:1 together with 2-25% of a mixture of soap and an anionic polyelectrolyte in the ratio of 10:1 to 1:1. Any pyrophosphate present must be kept below 5%. The soap and polyelectrolyte result in reduced deposition of inorganic materials onto the fabrics. The preferred polyelectrolyte is sodium polyacrylate with a molecular weight of about 27,000. The composition may also include conventional additional ingredients.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: April 20, 1982
    Assignee: Lever Brothers Company
    Inventors: Peter M. Duggleby, Bernhard Kueter, Ronald M. Morris, Horst Poeselt, Hermann Rabitsch, Reginald V. Scowen
  • Detergent bleach compositions
    Patent number: 4325828
    Abstract: A solid detergent bleach composition adapted for use at substantially any washing temperature, comprising essentially a detergent active compound and a synergistic mixture of a solid organic peroxy acid compound e.g. diperoxyazelaic acid, an inorganic peroxy compound e.g. sodium perborate and a stabilizing sequestering agent. The composition which is preferably presented in the form of a particulate product, shows improved bleaching effect at substantially all washing temperatures. It has also advantages over compositions comprising bleaching activators in that it does not suffer from problems of in situ peroxy acid generation.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: April 20, 1982
    Assignee: Lever Brothers Company
    Inventor: Dennis Postlethwaite
  • Process for producing a margarine having a reduced tendency to spattering
    Patent number: 4325980
    Abstract: An improved process for producing a margarine having a reduced tendency to spattering, the improvement consisting of adding separately to the oil phase effective proportions of a phosphatide and a finely divided hydrophilic metal- and/or metalloid oxide.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: April 20, 1982
    Assignee: Lever Brothers Company
    Inventors: Johannes H. M. Rek, Pieter M. J. Holemans
  • Process for bleaching naturally-occurring oils and fats
    Patent number: 4325883
    Abstract: A process for bleaching an oil or fat is disclosed wherein a polar bleaching agent is employed in the presence of a phase transfer catalyst.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: April 20, 1982
    Assignee: Lever Brothers Company
    Inventors: Keith Jones, Francis R. M. McDonnell, Stuart N. Morgan, David W. Thornthwaite
  • Citric acid esters and process for producing citric acid
    Patent number: 4324906
    Abstract: A process is disclosed for converting a compound of the formula ##STR1## wherein R and R" are independently methyl, ethyl or propyl;R' is H, Na, Li, K, Mg.sub.1/2, Ca.sub.1/2, Sr.sub.1/2, Ba.sub.1/2, methyl, ethyl or propyl; andQ is chlorine or bromide;directly to a citrate salt by heating in an aqueous medium, with an alkaline earth metal hydroxide, at a temperature greater than 160.degree. C.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: April 13, 1982
    Assignee: Lever Brothers Company
    Inventors: Eddie N. Gutierrez, Vincent Lamberti
  • Germicide
    Patent number: 4323466
    Abstract: Novel and improved antibacterial mixtures comprise a 2-alkylimidazoline and at least one bacteriostat from 3,4',5-tribromosalicylanilide, 4',5-dibromosalicylanilide and 2,4,4'-trichloro-2'-hydroxydiphenyl ether. These mixtures effectively destroy bacteria in a cleaning or laundering operation at room temperature and retard subsequent bacterial growth.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: April 6, 1982
    Assignee: Lever Brothers Company
    Inventors: Janet C. Curry, Barbara H. Bory
  • Detergent product containing deodorant compositions
    Patent number: 4322308
    Abstract: A deodorant detergent composition comprises a detergent-active compound and a deodorizing amount of a deodorant perfume and a deodorant other than a deodorant perfume, the composition having an odor reduction value within the range of from 0.50 to 3.5 as measured by the Odor Reduction Value Test.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: March 30, 1982
    Assignee: Lever Brothers Company
    Inventors: David C. Hooper, George A. Johnson, Donald Peter
  • Shampoo containing a polyglycol-polyamine condensation resin and a phosphate ester
    Patent number: 4321256
    Abstract: An aqueous shampoo containing a hair conditioning agent comprises an alkyl sulfate or alkyl ether sulfate detergent, a polyglycol-polyamine condensation resin and a phosphate mono- or di-ester. The deposition onto hair of the polyglycol-polyamine condensation resin from the shampoo is enhanced by the presence of the phosphate esters.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 23, 1982
    Assignee: Lever Brothers Company
    Inventors: Tatsuru Hasegawa, Yasuo Ohmi, Guy A. G. Ricketts, Stuart J. Sime
  • Liquid soap composition
    Patent number: 4310432
    Abstract: Stable concentrated aqueous liquid soap solutions containing up to 50%, and possibly higher, by weight of sodium soap can be obtained, if the soap comprises a mixture of at least one sodium soap (A) derived from C.sub.8 -C.sub.14 saturated fatty acids and at least one sodium soap (B) derived from C.sub.16 -C.sub.22 mono- and/or di-unsaturated fatty acids, in which the ratio by weight of soap (A) to soap (B) is within the range of 9:1 to 1:9.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: January 12, 1982
    Assignee: Lever Brothers Company
    Inventor: Hendrik W. Brouwer
  • Detergent composition having improved chlorine retention characteristic and method of making same
    Patent number: 4309299
    Abstract: The premature release of chlorine from chlorine-releasing bleaching agents in a particulate detergent, caused by the action on such a bleaching agent by some other component in the detergent, is prevented by compacting and granulating a mixture of said other component, preferably with additional constituents which do not have the chlorine-releasing effect, and then mixing those granules with the chlorine-releasing bleaching agent and other appropriate detergent constituents. The resulting novel detergent is a mixture of the thus-produced granules with particles of the said other appropriate detergent constituents.
    Type: Grant
    Filed: September 4, 1980
    Date of Patent: January 5, 1982
    Assignee: Lever Brothers Company
    Inventors: Anthony A. Rapisarda, Joseph Romeo
  • Fabric softening composition
    Patent number: 4308024
    Abstract: The invention relates to the field of fabric softening. It provides for fabric softening compositions comprising a relatively water-insoluble cationic detergent surfactant and a free C.sub.8 -C.sub.24 alkyl- or alkenylmonocarboxylic acid. These compositions are significantly more storage stable than compositions, wherein the monocarboxylic is present as a soap. Further inclusion of a relatively water-soluble cationic detergent surfactant or cationic polymer significantly increases the softening performance.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: December 29, 1981
    Assignee: Lever Brothers Company
    Inventor: Martin A. Wells
  • Foam bath compositions containing anionic detergent and monoglyceride
    Patent number: 4306997
    Abstract: A single liquid phase detergent composition, such as a foam bath product, contains an alkyl monoglyceride as a skin benefit agent, an anionic detergent and water. In use, when diluted in water, the composition is capable of producing and maintaining a substantial head of foam and is capable of depositing on the skin, after immersion, a noticeable amount of the alkyl monoglyceride.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: December 22, 1981
    Assignee: Lever Brothers Company
    Inventors: Francis E. J. Oneto, Andre J. E. Benzoni, Jacques L. Poret, Fernand B. Simon
  • Process for the selective hydrogenation of triglyceride oils with a metallic catalyst in the presence of a diamine
    Patent number: 4307026
    Abstract: Unsaturated fatty acid derivatives which, besides fatty acids with two double bonds, contain fatty acids with more than two double bonds, are hydrogenated in the presence of a palladium, platinum or rhodium catalyst which has been treated with ethylenediamine or a homologue and/or a derivative thereof and at a temperature of -20.degree. to 100.degree. C. The hydrogenation progresses very selectively while very little isomerization to trans-fatty acids occurs.For example, in the hydrogenation of soya bean oil to a linolenic acid content of 2%, the linoleic acid content only decreases to 45-52%. Under identical conditions an untreated catalyst leads to a linoleic acid content of about 35%.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: December 22, 1981
    Assignee: Lever Brothers Company
    Inventor: Jan Kuiper
  • Novel ester derivatives of polycarboxylic acids and process for making same
    Patent number: 4306079
    Abstract: Novel polyfunctional compounds and a novel process for their preparation are disclosed. These compounds may be converted into the acid or salt forms of cis and trans aconitic acids as well as into a racemic mixture of isocitric acid, alloisocitric acid and the lactones of isocitric acid and alloisocitric acid and their salts. All of the acid and salt forms produced are useful as metal sequestrants and/or detergent builders. The novel polyfunctional compounds can also be saponified to their corresponding alkali metal salts which, in turn, are also metal ion sequestering agents and detergent builders. The polyfunctional compounds are the reaction products obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: December 15, 1981
    Assignee: Lever Brothers Company
    Inventors: Eddie N. Gutierrez, Vincent Lamberti
  • Food product
    Patent number: 4305964
    Abstract: The invention provides food products comprising a continuous aqueous phase and a dispersed gelled aqueous phase. The dispersed phase is preferably made up of gelled water beads of average diameter of 5-10 microns, which beads can, if desired, be coated with a layer of oil. The gelled water beads can contain hydrocolloids, e.g. locust bean gum.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: December 15, 1981
    Assignee: Lever Brothers Company
    Inventors: David P. J. Moran, Peter W. Halstead
  • Edible emulsions and process for their preparation
    Patent number: 4305970
    Abstract: This invention provides emulsions comprising a continuous fatty phase and a dispersed liquid aqueous phase and dispersed gelled aqueous ingredients, e.g. prepared by blending a gelling agent containing low fat spread in line with one free from gelling agents.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: December 15, 1981
    Assignee: Lever Brothers Company
    Inventors: David P. J. Moran, Janos Bodor
  • Stabilization of hydrogen peroxide
    Patent number: 4304762
    Abstract: Effective stabilization of aqueous hydrogen peroxide solutions is achieved by the addition of a stabilizing phosphonate compound of the general formula: ##STR1## wherein n=1-4; and X=H or a water-soluble cation. The stabilizing phosphonate compound is particularly effective for use with alkaline hydrogen peroxide solutions.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: December 8, 1981
    Assignee: Lever Brothers Company
    Inventor: Arthur G. Leigh
  • Naturally food color compositions
    Patent number: 4304792
    Abstract: A natural food colorant composition for oleomargarine which imparts a pleasant yellow color to the margarine with essentially no migration of the color to the margarine container or wrapper. The colorant composition is a mixture of an edible material of natural origin having a predominantly reddish hue, such as annatto, paprika or the like, with an edible material of natural origin having a predominantly yellowish hue, such as palm oil, carrot oil or corn gluten oil.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: December 8, 1981
    Assignee: Lever Brothers Company
    Inventors: Baratham Sreenivasan, Kenneth S. Baker
  • Detergent product containing deodorant compositions
    Patent number: 4304679
    Abstract: A deodorant detergent product comprises a non-soap detergent active compound, and a deodorant composition. The product can be used for personal washing of the skin and will as a result reduce human body malodor. The product can also be employed for washing fabrics which when subsequently worn in contact with the skin aid in the reduction of human body malodor.
    Type: Grant
    Filed: August 15, 1978
    Date of Patent: December 8, 1981
    Assignee: Lever Brothers Company
    Inventors: David C. Hooper, George A. Johnson, Donald Peter
  • Manufacture of multicolored detergent bars
    Patent number: 4304745
    Abstract: Multi-colored detergent bars can be manufactured by extruding detergent material through a multi-apertured plate in a detergent plodder and injecting a visually distinctive liquid at the plate. The liquid is distributed throughout the detergent material in the form of striations as the material is compressed in the extrusion cone.A specific form of external striping and the use of increased amounts of injected liquid can be achieved by having some of the apertures positioned peripherally on the plate. These apertures form `walls` of extruded material which constrain the liquid into stripes.The manufactured bar has a distinctive appearance because the external striations are wider than the internal striations.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: December 8, 1981
    Assignee: Lever Brothers Company
    Inventors: David A. Alderson, Raymond C. Stott