Patents Examined by Mayer Weinblatt
  • Patent number: 4299714
    Abstract: In a central system fluid composition comprising (1) 70 to 95% by weight of a hydrocarbon base oil and (2) 5 to 30% by weight of a viscosity index improver, the improvement wherein said hydrocarbon base oil (1) comprises (a) 25% by weight to less than 50% by weight, based on the weight of the hydrocarbon base oil (1), of an oligomer of 1-decene having an average molecular weight of 200 to 600 and (b) more than 50% by weight to 75% by weight of a petroleum lubricating oil fraction, and said viscosity index improver (2) is a polymethacrylate having a viscosity average molecular weight of 10,000 to 700,000 obtained by polymerizing at least one ester of a saturated monohydric aliphatic alcohol having 1 to 18 carbon atoms with methacrylic acid.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: November 10, 1981
    Assignees: Nippon Oil Company, Ltd., Nissan Motor Co., Ltd.
    Inventors: Kensuke Sugiura, Mineo Kagaya, Hiroyuki Aoki, Takeitiro Takehara
  • Patent number: 4299716
    Abstract: The invention relates to a detergent composition in powder or bar form containing a surfactant, an alkali metal carbonate and a low level (1 to 5%) of orthophosphate, other phosphates being maintained at a level below 5%. A peroxygen bleach and other conventional additives are optionally present. The compositions are suitable for washing fabrics in developing countries and are suitable as low cost products elsewhere.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 10, 1981
    Assignee: Lever Brothers Company
    Inventors: John S. Cottrell, Peter J. Powers
  • Patent number: 4299713
    Abstract: A unfilled polymeric composition having improved electrical treeing and water treeing properties comprising a polymeric component and effective amounts of an organic compound, such as, a specially defined silane. These compositions are particularly useful as insulation for high voltage transmission and distribution cables.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: November 10, 1981
    Assignee: National Distillers and Chemical Corp.
    Inventors: Melvin F. Maringer, Anthony Barlow
  • Patent number: 4298492
    Abstract: By inclusion of an alkali metal soap and an alkanolamine in a liquid detergent composition which contains a mixture of sodium tripolyphosphate and tetrapotassium pyrophosphate, a stable liquid, both at 0.degree. C. and at 52.degree. C. is obtained, in the presence of a hydrotrope. This system can also incorporate hydrogen peroxide, without any detrimental effect on its chemical or physical stability.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: November 3, 1981
    Assignee: Lever Brothers Company
    Inventor: Guido C. van den Brom
  • Patent number: 4298494
    Abstract: The invention concerns an aqueous shampoo comprising an alkyl sulphate or alkyl ether sulphate detergent, a cationic derivative of a polygalactomannan gum as a hair conditioning agent and, for enhancing the deposition of the conditioning agent onto the hair during shampooing, a defined carboxylate, sulphate or phosphate ester anionic additive.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: November 3, 1981
    Assignee: Lever Brothers Company
    Inventors: Michael W. Parslow, Stuart J. Sime
  • Patent number: 4296003
    Abstract: A dielectric fluid composition with high electrical strength characterized by a first fluid selected from the group consisting of electronegative gases, such as SF.sub.6, CCl.sub.2 F.sub.2, C.sub.2 F.sub.6, CF.sub.3 Cl, and CF.sub.4, and mixtures thereof; or from another group consisting of electropositive gases, such as N.sub.2 and CO.sub.2, and mixtures thereof; or from mixtures of the two groups; and a second fluid from a group of atomized liquids, which may be chlorinated liquid, such as, C.sub.2 Cl.sub.4 (tetrachloroethylene); and fluorocarbon liquids, such as, C.sub.8 F.sub.16 O (perfluorodibutyl ether), and mixtures thereof.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: October 20, 1981
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ronald T. Harrold, Lawrence E. Ottenberg
  • Patent number: 4295985
    Abstract: This disclosure deals with removing rapidly chlorine retained by the skin and hair of, for example, swimmers, after exposure to chlorinated water by means of a stoichiometric excess of a suitable reducing agent, such as an alkali thiosulfate and the like in aqueous solution, and with toilet soaps and shampoos comprising said agent adapted to effect said removal.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: October 20, 1981
    Inventors: Henry G. Petrow, Mark L. Weissman
  • Patent number: 4294718
    Abstract: Gelation and setting of desirably miscible and pumpable crutcher slurries comprising sodium carbonate, sodium bicarbonate and sodium silicate in an aqueous medium are retarded and often prevented by the addition to such medium of a citric material, such as citric acid and/or water soluble citrate, and magnesium sulfate. Alternatively, magnesium citrate may be employed. The addition of the citric material and magnesium sulfate (or magnesium citrate) lengthens appreciably the workable crutcher time before setting, increasing it over such working time for similar crutcher mixes containing the citric material but not containing magnesium sulfate.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: October 13, 1981
    Assignee: Colgate-Palmolive Company
    Inventor: James A. Kaeser
  • Patent number: 4294715
    Abstract: A dielectric composition comprising a mixture of monoisopropylated diphenyls and polyisopropylated diphenyls, especially a mixture of 30 to 60 parts by weight of monoisopropylated diphenyls and 70 to 40 parts by weight of polyisopropylated diphenyls, the polyisopropylated diphenyls preferably being made up in turn of 60 to 85 parts by weight of diisopropylated diphenyls, 10 to 35 parts by weight of triisopropylated diphenyls and 0.5 to 5 parts by weight of tetraisopropylated diphenyls, these latter amounts being based upon the total amount of the polyisopropylated diphenyls.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: October 13, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Rudolf Kron, Karlfried Wedemeyer, Ernst Knust, Lothar Havenith
  • Patent number: 4294710
    Abstract: Detergent compositions having good cleaning performance and also textile softening properties comprise an organic surfactant, alkaline reacting water-soluble salts and a specified class of tertiary amines. Optionally and preferably a smectite-type clay is also present in the compositions.The present invention relates to detergent compositions which clean well and at the same time act as textile softeners.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: October 13, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Frederick E. Hardy, Colin A. Dewar
  • Patent number: 4293433
    Abstract: Electrical devices such as transformers and power capacitors are improved by the use of a dielectric fluid prepared by combining perchloroethylene having a low chlorinated ethane content with an antioxidant. This fluid has excellent resistance to decomposition over long periods of time and under severe operational conditions.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: October 6, 1981
    Assignee: Diamond Shamrock Corporation
    Inventors: Jack A. Borror, Edward A. Rowe, Jr.
  • Patent number: 4292191
    Abstract: An activated peroxy compound bleaching composition includes a peroxy bleaching compound, such as sodium perborate, and an activator for such bleaching compound, which improves the bleaching effect thereof, which activator is a sulfonyl halide, such as an alkoxybenzenesulfonyl halide, preferably an ortho- or para-substituted methoxybenzenesulfonyl chloride, such as p-methoxybenzenesulfonyl chloride. Preferably, the peroxy bleaching compound and activator are included in a synthetic organic detergent composition such as one based on anionic and/or nonionic normally solid detergent(s), preferably also with builder salt(s) present, and bleaching is effected during the washing of fabrics or articles made thereof, in wash waters of various temperatures, even in water which is only warm. The bleaching compound and activator may also be included in pre-soak compositions.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: September 29, 1981
    Assignee: Colgate-Palmolive Company
    Inventor: Frederick W. Gray
  • Patent number: 4292193
    Abstract: Described is a process for augmenting or enhancing the aroma of a solid or liquid anionic, cationic, or nonionic detergent comprising the step of intimately admixing with a solid or liquid anionic, cationic or nonionic detergent base an aroma augmenting or enhancing quantity of at least one indane alkanol or tricyclic isochroman having the structure ##STR1## wherein X is hydrogen, methyl or --CH.sub.2 --; the dashed line is either a carbon-carbon single bond or no bond; R.sub.1 is hydrogen or methyl; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent hydrogen, methyl or isopropyl; with the proviso that R.sub.2 and R.sub.3 are methyl when R.sub.4 is hydrogen and R.sub.5 is isopropyl or R.sub.4 and R.sub.5 represent methyl when R.sub.2 is hydrogen and R.sub.3 is isopropyl; and with the further proviso that the dashed line is a carbon-carbon single bond when X is --CH.sub.2 -- and the dashed line is no bond when X is hydrogen or CH.sub.3.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: September 29, 1981
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Wilhelmus J. Wiegers, Mark A. Sprecker, Hugh Watkins, Manfred H. Vock, Frederick L. Schmitt
  • Patent number: 4292190
    Abstract: Tertiary, cyclic, bridgehead amines are disclosed as useful corrosion inhibitors for metals in contact with aqueous alkaline liquids. The disclosed amines have been found to be strongly resistant to thermal decomposition, to chemical attack, and to nitrosation. The use of these corrosion inhibitors is particularly desirable in aqueous alcohol compositions useful as a heat exchange liquid in the cooling systems of an internal combustion engine wherein said aqueous solutions are ethylene glycol-based compositions. The disclosed amines are useful under alkaline conditions alone or in combination with conventional corrosion inhibitors such as water-soluble metal salts of tolyltriazole and phosphoric acid, alkali metal nitrites and nitrates, and alkali metal phosphates.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: September 29, 1981
    Assignee: BASF Wyandotte Corporation
    Inventors: Pauls Davis, Jerrold F. Maxwell, Joe C. Wilson
  • Patent number: 4290903
    Abstract: A detergent additive product intended to enhance removal of oxidizable and oily stains from textiles comprising a substantially water impermeable container enclosing an organic matrix consisting of 30-85% by weight of a normally solid water soluble ethoxylated nonionic compound and 15-70% by weight of an organic peroxybleach precursor, optionally with 1-75% by weight of the matrix of other water soluble detergent components especially cationic surfactants, organic chelating agents and soil suspending agents. The particulate product has a maximum dimension in the range 1-4 mm, a penetrometer indentation of less than 1 mm, a wicking value (resistance to nonionic bleeding) <10 and should disperse in aqueous inorganic persalt-containing detergent solution to release at least 50% of the theoretically available bleach within 8 minutes. In a preferred granular form, the product is coated with 1-30%, by weight of the matrix, of a powder coating which may be organic or inorganic.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: September 22, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Neil A. Macgilp, Duncan A. Mann
  • Patent number: 4289643
    Abstract: Anhydrous sodium metasilicate is stabilized against attrition or "dusting" in detergent and other use, by formulating same with such amount of an additive, e.g., a hydrate, that will transfer water content to the anhydrous metasilicate, at a temperature less than the fusion temperature of sodium metasilicate pentahydrate and as will convert from about 1% to 20% by weight of said anhydrous metasilicate into its pentahydrate form.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: September 15, 1981
    Assignee: Rhone-Poulenc Industries
    Inventor: Daniel Joubert
  • Patent number: 4289815
    Abstract: A pouch for the controlled release of active ingredients into an aqueous medium comprising liquid or solid active ingredients enclosed in a sealed envelope of cold water-insoluble polyvinyl alcohol.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: September 15, 1981
    Assignee: Airwick Industries, Inc.
    Inventor: Ping I. Lee
  • Patent number: 4288337
    Abstract: A lightweight mixed dielectric and a manufacturing method thereof is described, which is prepared by mixing metal-coated expanded particles of plastic, glass or silica, thin-wall metal pipes or metal coated thin-wall plastic pipes and uncoated expanded particles of plastic, glass or silica and then forming the resulting mixture into a desired shape by thermal expansion or by the use of binder with the provision that these uncoated expanded particles are only made of plastic when the forming step is carried out by thermal expansion.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: September 8, 1981
    Assignee: Tokyo Keiki Company Limited
    Inventors: Hiroshi Ota, Noboru Sakuma, Takeki Takarabe, Isao Takiguchi
  • Patent number: 4287081
    Abstract: Described is a process for augmenting or enhancing the aroma of a solid or liquid anionic, cationic or nonionic detergent comprising the step of adding in an aroma augmenting or enhancing quantity to a solid or liquid anionic, cationic or nonionic detergent base at least one tricyclic ketone having the structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents hydrogen or C.sub.1 --C.sub.3 lower alkyl.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: September 1, 1981
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, James M. Sanders, William L. Schreiber, Hugh Watkins, Joaquin F. Vinals, Edward J. Shuster, Thomas J. O'Rourke, Myrna L. Hagedorn, Philip Klemarczyk
  • Patent number: 4287079
    Abstract: An aqueous cleaning composition to be applied from a squirt bottle comprises a particulate abrasive, a two-part thickness consisting essentially of a mixture of fumed silicon dioxide and smectite clay, a hypo-halite bleach, alkaline builder salt, and water.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: September 1, 1981
    Assignee: Purex Corporation
    Inventor: Ronald A. Robinson