Patents Examined by P. E. Willis, Jr.
  • Patent number: 4217234
    Abstract: A fast-acting (3-5 min.) denture-cleansing tablet for use in aqueous solutions to automatically clean dentures is comprised of a mixture containing gas-forming materials, organic and inorganic calcium bonding materials, oxidizing materials, surfactant materials, carriers, lubricants and flavoring materials. Fast cleansing action and short decomposition times are obtained by including amidosulfonic acid, ethylene diamine tetraacetic acid, dialkyl thiourea, and a non-ionogenic fluorochemical material in an amount sufficient to achieve a pH in a 1% solution of such formulation in water of 6.3 to 6.5.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: August 12, 1980
    Inventors: Werner Krisp, Mira Reuss
  • Patent number: 4216104
    Abstract: A cleaning pad comprises a porous flexible substrate impregnated with detergent, adhesive, a gas-generating compound and a compound to trigger release of gas by the gas-generating compound.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: August 5, 1980
    Inventor: Gerhard Gergely
  • Patent number: 4214997
    Abstract: A soil-release composition for the treatment of textile fabrics comprises a complex of a nonionic detergent and a polycarboxylate polymer, together with an organic quaternary ammonium surfactant compound in a concentrated aqueous solution with an acid pH.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: July 29, 1980
    Assignee: Lever Brothers Company
    Inventors: Ronald M. Morris, Stuart K. Pratley
  • Patent number: 4214998
    Abstract: Fabric softening compositions comprise alcoholic solutions or aqueous dispersions of a mixture of quaternary ammonium compounds having the general formula: ##STR1## in which X represents a quaternary anion, for example chloride, bromide, iodide, methylsulphate, R.sub.1 and R.sub.2, which may be the same or different within a molecule, are long chain alkyl groups containing from 13 to 19 carbon atoms in each group, the groups being both straight chain and branched and in which the amount of branching is in the range between 30% and 70%, and particularly mixtures of quaternary compounds in which the substituents R.sub.1 and R.sub.2 are alkyl groups containing 13 and 15 carbon atoms comprising 65 to 75% C.sub.13 groups with 35 to 25% C.sub.15 groups (the percentages being calculated on the total of long chain alkyl groups) with 40 to 55 wt % straight chain and 60 to 45 wt % 2-alkyl branched chain where the 2-alkyl groups is predominantly methyl.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: July 29, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventor: David R. Joy
  • Patent number: 4215005
    Abstract: Improved organic stripping compositions useful in removing polymeric organic substances, such as photoresists, from aluminized inorganic substrates, which comprise one or more organic sulfonic acids, such as linear dodecylbenzene-sulfonic acid, toluenesulfonic acid and phenolsulfonic acid, one or more organic solvents and, optionally, phenol. A hydrogen fluoride complex is incorporated into the composition comprising HF at about 5 to 300 pm by weight of fluoride per weight of composition and at least about 0.1 mols per mol of HF of a complexing agent, such as morpholine or dimethyl formamide, having a nitrogen with an unshared electron pair. The hydrogen fluoride complex reduces aluminum corrosion during stripping even after repeated use at high temperature as is common in industrial semiconductor photoresist stripping.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: July 29, 1980
    Assignee: Allied Chemical Corporation
    Inventor: John E. Vander Mey
  • Patent number: 4211675
    Abstract: Detergent bars containing acyl isethionates can exhibit a feeling of drag (relatively high friction) when handled during washing. The drag can be reduced, and therefore the slip feeling of the bar improved, by adding a sucrose ester. Preferably the amount is from about 5 to about 30%.
    Type: Grant
    Filed: January 17, 1979
    Date of Patent: July 8, 1980
    Assignee: Lever Brothers Company
    Inventor: David Machin
  • Patent number: 4209414
    Abstract: A synthetic dual-purpose fluid for use as a hydraulic fluid and in metal cutting operations, particularly where hydraulic fluid leakage cannot be tolerated in hydraulically operated machines designed for metal cutting purposes. The fluid contains in combination 50-70% of an alkylene glycol, 10 to 25% of an alkanol amine, up to 10% boric acid, and 2 to 25% of a phosphate-modified condensation product of a fatty acid and a dialkanolamine.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: June 24, 1980
    Assignee: E. F. Houghton and Co.
    Inventors: Rosauro V. Holgado, Philip Rakoff
  • Patent number: 4209413
    Abstract: A thermal energy storage material comprising at least one hydrated inorganic salt having a transition temperature to the anhydrous or a less hydrated form in the range 10.degree. to 100.degree. C. (for example, sodium sulphate decahydrate), the salt being dispersed and suspended in a water-insoluble hydrogel formed from a water-soluble synthetic polymer having pendant carboxylic or sulphonic acid groups cross-linked with cations of a polyvalent metal (for example, aluminium or magnesium).
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: June 24, 1980
    Assignee: The Calor Group Limited
    Inventors: Peter J. C. Kent, John K. R. Page
  • Patent number: 4207215
    Abstract: A tile and grout cleaning composition is provided which consists essentially of about 1.5 to 7.0 weight percent of a sequestering agent expressed on a free acid basis; about 1.0 to 3.0 weight percent of an alkaline hydroxide; 1.0 to 4.0 weight percent of 2-heptadecyl-1-carboxymethyl-1-(2-hydroxyethyl)-2-imidazolinium chloride; and the balance is water wherein the composition is capable of existing as a thixotropic gel at room temperature and of forming a water-impermeable outer skin upon application of the composition to the tile or grout surface.
    Type: Grant
    Filed: October 18, 1978
    Date of Patent: June 10, 1980
    Assignee: The Drackett Company
    Inventor: Joseph A. Bolan
  • Patent number: 4203858
    Abstract: A low-foaming machine dishwashing composition comprising (1) an alkali metal, or ammonium, carbonate and (2) a water soluble salt of a polyelectrolyte having an average molecular weight of about 500-4000 and the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.4, and R.sub.5 can be hydrogen, C.sub.1 -C.sub.4 lower alkyl, or a combination thereof; R.sub.3 and R.sub.6 can be hydrogen, carboxy, or alkylcarboxy; and the sum of (a+b) is .gtoreq.5 to .ltoreq.30, preferably .gtoreq.7 to .ltoreq.15, employed in a weight ratio (polyelectrolyte:carbonate) of 5:95-20:80, and, preferably, a low foaming surfactant, results in effective and economical dishwashing.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: May 20, 1980
    Assignee: GAF Corporation
    Inventor: Paritosh M. Chakrabarti
  • Patent number: 4203857
    Abstract: A detergent-scrubber article includes a solid detergent composition body, preferably of flat rectangular parallelepiped shape, affixed to a relatively rigid, yet somewhat yielding body of a light weight material, such as closed cell polystyrene or polyethylene foam. The closed cell polymeric foam is also preferably of flat rectangular parallelepiped shape, with a major surface thereof affixed to the solid detergent composition body, and serves as a scrubbing, abrading or wiping article to help remove soils or stains from surfaces of items to be cleaned, such as soiled laundry, after application of the detergent composition to such surfaces. It also functions as a handle by means of which the body of detergent composition may be held without touching it while applying such detergent to items to be cleaned.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: May 20, 1980
    Assignee: Colgate-Palmolive Company
    Inventor: Bernard B. Dugan
  • Patent number: 4203873
    Abstract: The present invention relates to a detergent composition containing an anionic surface active agent, imidobissulfate of the general formula(MSO.sub.3).sub.2 NM(in which M represents cation selected from the group consisting of sodium ion, potassium ion and ammonium ion) and at least one compound selected from the group consisting of sodium nitrilotriacetate and sodium citrate.
    Type: Grant
    Filed: August 24, 1978
    Date of Patent: May 20, 1980
    Assignee: Agency of Industrial Science & Technology
    Inventors: Hiroshi Suzuki, Yukio Ito, Yosiro Yasumoto, Sigeru Kinomura, Kazuo Nagashima
  • Patent number: 4202926
    Abstract: Microporous films are charged with selected polymer curing agents and brought into contact with a curable material to thereby crosslink it. Specific curable materials useful both for the microporous film and the curable polymer include epoxy resins which form strong adhesive bonding systems in various environments.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: May 13, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Rostyslaw Dowbenko
  • Patent number: 4201686
    Abstract: A stable, non-gelling, low-foaming unbuilt aqueous liquid detergent is obtained by inclusion, in an aqueous medium, of 25-45% of a ternary nonionic detergent mixture, wherein the nonionics are high-, medium- and low-ethoxylated fatty alcohols with specific alkyl chain lengths.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: May 6, 1980
    Assignee: Lever Brothers Company
    Inventor: Govert J. P. Augustijn
  • Patent number: 4199482
    Abstract: This invention relates to a laundry pre-spotter composition comprising a solvent for greasy materials, a chlorinated solvent, an organic solvent, water, and a mixture of nonionic and anionic surface active agents and the method of using the same, the composition being in the form of a clear, compatible, homogeneous, stable liquid.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: April 22, 1980
    Assignee: Colgate-Palmolive Company
    Inventors: Jean Renaud, Seugnet Monique
  • Patent number: 4199465
    Abstract: Nonbleeding substrate articles, containing mixtures of cationic and nonionic surfactants, which yield excellent removal of particulate and greasy/oily soils from fabrics, and wherein the detergent components are rapidly and completely released into the laundry solution, are disclosed. A method of laundering fabrics using these articles is also disclosed.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: April 22, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Victor F. Rodriguez
  • Patent number: 4199464
    Abstract: Substrate articles, containing mixtures of cationic and nonionic surfactants, which yield excellent removal of particulate and greasy/oily soils from fabrics, and wherein the detergent components are rapidly and completely released into the laundry sodlution, are disclosed. Preferred articles additionally contain selected materials which minimize the bleeding of the surfactant components through the substrate sheets. A method of laundering fabrics using these articles is also disclosed.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: April 22, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Cushman M. Cambre
  • Patent number: 4199466
    Abstract: A process for the activation of peroxide-based bleaches comprising conjointly incorporating into an aqueous medium a peroxide-based bleach, sufficient buffering agent to maintain the aqueous medium under alkaline conditions, and a cyanoamine of the general formula ##STR1## as a peroxide activator. Stable peroxide-based bleaching and detergent compositions are also disclosed.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: April 22, 1980
    Assignee: Shell Oil Company
    Inventor: Herbert L. Benson, Jr.
  • Patent number: 4196104
    Abstract: Detergent-compatible antistatic compositions are sprayed onto base detergent granules containing surfactant, detergency builders, and other detergency additives, to form discrete particles with distinct properties.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: April 1, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Patrick C. Oguagha
  • Patent number: 4194993
    Abstract: A method of forming a powdered cleaning composition is disclosed. The process comprises the steps of: polymerizing urea and formaldehyde in acidic aqueous solution to form particles of a specified size and porosity, centrifuging the polymer particles to lower their moisture content to less than about 43%, blending polyethylene oxide into the polymer, spraying a fine mist of detergent solution directly onto the polymer mass as it is being blended. The acid may be neutralized by adding buffer to the solution after the urea and formaldehyde are polymerized or by spraying a mist of buffer containing solution directly onto the polymer as it is being blended.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: March 25, 1980
    Assignee: Milliken Research Corporation
    Inventor: James F. Deal, III