Patents Examined by Linda Skaling
  • Patent number: 5478492
    Abstract: The invention relates to compositions comprising 1,1,1,3,3-pentafluorobutane, 1,2-dichloroethylene and optionally a C1-C3 alkanol. These compositions can be used especially as solvents for cleaning and defluxing electronic components and for degreasing metals.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: December 26, 1995
    Assignee: Solvay (Societe Anonyme)
    Inventors: Pierre Barthelemy, Mireille Paulus, Robert Putteman
  • Patent number: 5478493
    Abstract: New binary azeotropes of hexamethyldisiloxane with certain alcohols, and the use of the binary azeotropes as environmentally friendly cleaning agents are disclosed. The alcohol component of the binary azeotrope is 3-methyl-3-pentanol C.sub.2 H.sub.5 C(CH.sub.3)(OH) C.sub.2 H.sub.5 ; 2-pentanol CH.sub.3 CH.sub.2 CH.sub.2 CH(OH) CH.sub.3, or 1-methoxy-2-propanol CH.sub.3 OCH.sub.2 CH(CH.sub.3)OH.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: December 26, 1995
    Assignee: Dow Corning Corporation
    Inventors: Ora L Flaningam, Dwight E. Williams
  • Patent number: 5476598
    Abstract: The stability and softening performance of amidoamine fabric softeners, such as bis(hydrogenated tallow amidoethyl)-2-hydroxyethyl amine) is improved by protonating the amine with a neutralizing inorganic or organic acid and incorporating certain stabilizing emulsifiers, such as, N,N',N'-tris(2-hydroxyethyl)-N-tallow-1,3-diaminopropane, dimethylhydrogenated tallow amine, methyl dihydrogenated tallow amine, and oleic imidazoline). Mixtures of bis(hydrogenated tallow amidoethyl)-2-hydroxyethyl amine and bis(tallow amidoethyl)-2-hydroxyethyl amine also provide improved softening and form stable aqueous dispersions. The compositions may be highly concentrated for use at low levels or for further dilution prior to use.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: December 19, 1995
    Assignee: Colgate-Palmolive Co.
    Inventors: Charles J. Schramm, Jr., Regis Cesar
  • Patent number: 5474695
    Abstract: To replace chlorofluorocarbons as refrigerant fluids, the invention proposes to employ mixtures containing, on a mass basis, approximately 25 to 65% of 1,1,1-trifluoroethane, 1 to 70% of perfluoropropane and 5 to 34% of propane.The mixtures according to the invention can also be employed as aerosol propellants or as blowing agents for plastic foams.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: December 12, 1995
    Assignee: d'Elf Atochem S.A.
    Inventors: Sylvie Macaudiere, Jean-Claude Tanguy
  • Patent number: 5472641
    Abstract: A paint remover composition consisting essentially of a single phase mixture of water, trioxane and an organic co-solvent having a flash paint above about 80.degree. C. is disclosed and claimed. Particularly preferred co-solvents are gamma-butyrolactone and N-methyl pyrrolidone.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: December 5, 1995
    Assignee: Hoechst Celanese Corp.
    Inventors: James E. Kuder, Larry F. Charbonneau, Elizabeth E. Fernekess
  • Patent number: 5470508
    Abstract: A three part cleaning composition uses C.sub.6 -C.sub.20 alkyl substituted lactam as a cleaning agent, an anionic surfactant and water to solubilize and remove oil or grease from hard surfaces. The lactam is provided in a ratio, relative to surfactant of 5-0.1 to 5-3.0, more preferably 5-0.1 to 5-1.0. The composition is surprisingly effective in forming micro-emulsions with the oil or grease and maintaining the emulsions for ease in disposal. Using an aqueous solution including C.sub.6 -C.sub.20 alkyl substituted lactam provides a low volatility, non-flammable degreasing solution, which is highly effective and biodegradable.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: November 28, 1995
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Ratan K. Chaudhuri, Robert B. Login, Frank Fusiak
  • Patent number: 5470510
    Abstract: Poly(glutamic acid) is used as a dispersing, soil-suspending or anti-redeposition agent in laundry detergent or other cleaning compositions that also contain a detersive surfactant. Suitable polymers include not only the homopolymers of glutamic acid but also block, graft or random copolymers of glutamic acid with biodegradable monomers or polymers, e.g., other amino acids or polyethylene glycol.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: November 28, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Alan D. Willey, Robin G. Hall
  • Patent number: 5468415
    Abstract: Compositions according to the present invention include as essential components: from about 10% to about 50% by weight of d-limonene, from about 50% to about 90% by weight of NMP, and from about 0% to about 10% by weight of a thickener.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: November 21, 1995
    Assignee: Specialty Environmental Technologies, Inc.
    Inventor: Chester P. Jarema
  • Patent number: 5468411
    Abstract: A phosphate-free powdered dishwashing composition containing a mixture of a protease enzyme and an amylase enzymes have been found to be very useful in the cleaning of dishware. The compositions contain nonionic surfactants and a alkali metal silicate and bleaching agent.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: November 21, 1995
    Assignee: Colgate Palmolive Co.
    Inventors: Nagaraj S. Dixit, Robert D'Ambrogio, Divaker Kenkare, Julien Drapier
  • Patent number: 5464555
    Abstract: A liquid, non-aqueous, one-step graphic ink remover cleaner composition that is well suited for removing graphic ink, the composition comprising d-limonene, ethyl lactate, NMP, and a surfactant.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: November 7, 1995
    Assignee: Dotolo Research Corporation
    Inventor: Ronnie E. Bayless
  • Patent number: 5458800
    Abstract: To replace 1,1,2-trichloro-1,2,2-trifluoroethane (F113) in its applications to the cleaning and drying of solid surfaces, the invention propose to employ a (perfluoroalkyl)ethylene of formula:R.sub.f CH.dbd.CH.sub.2in which R.sub.f denotes a linear or branched perfluoroalkyl radical containing from 3 to 6 carbon atoms.In contrast to F113, (perfluoroalkyl)ethylenes are not liable to degrade stratospheric ozone.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: October 17, 1995
    Assignee: Societe Atochem
    Inventors: Daniel Desbiendras, Jean-Jacques Martin, Pascal Michaud
  • Patent number: 5458798
    Abstract: This invention relates to compositions that include at least one hydrocarbon and at least one fluorinated species. Such compositions may be used as refrigerants, cleaning agents, expansion agents for foams such as polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, displacement drying agents, among others.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: October 17, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Brooks S. Lunger, Glenn S. Shealy
  • Patent number: 5456853
    Abstract: Relatively non-toxic and environmentally safe paint stripping compositions are disclosed for use in removing, for example, oil based alkyd and latex paints, varnishes, lacquers, shellacs, enamels, polyurethane and epoxy coatings from wood and metal surfaces at ambient temperatures. It has been unexpectedly found that C.sub.3 -C.sub.7 ether esters and carbonates of the form R--O--(CH.sub.2).sub.n --COOR.sub.1, wherein R and R.sub.1 are lower alkyl groups and n=0-2, used in combination with tetrahydrofurfuryl alcohol (THFA) increase the rate of paint removal relative to THFA alone. Other ingredients, such as N-methyl-2-pyrrolidone (NMP), gamma-butyrolactone (BLAC) may be added to improve the efficacy of the present invention without detracting from its other beneficial properties. Additives such as formic acid, surfactant, thickener, corrosion inhibitor, fragrance, and bittering agent may also be added.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: October 10, 1995
    Assignee: Rust-Oleum Corporation
    Inventor: Marion M. Myers, II
  • Patent number: 5456856
    Abstract: New binary azeotropes and azeotrope-like compositions are mixtures containing octamethyltrisiloxane and 2-butoxyethanol, 2-methylcyclohexanol, or isopropyl lactate. The mixtures are useful as environmentally friendly cleaning, rinsing, and drying agents.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: October 10, 1995
    Assignee: Dow Corning Corporation
    Inventors: Ora L. Flaningam, John A. Moore, Dwight E. Williams
  • Patent number: 5454972
    Abstract: New binary azeotropes of octamethyltrisiloxane (MDM) with n-propoxypropanol, and the use of the binary azeotropes as environmentally friendly cleaning agents are disclosed. New azeotrope-like compositions of octamethyltrisiloxane and n-propoxypropanol are also disclosed.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: October 3, 1995
    Assignee: Dow Corning Corporation
    Inventors: Dwight E. Williams, Ora L. Flaningam
  • Patent number: 5454970
    Abstract: New binary azeotropes of octamethyltrisiloxane (MDM) with certain alcohols and an ester, and the use of the binary azeotropes as environmentally friendly cleaning agents are disclosed. The alcohol and ester components of the binary azeotrope are 2-methyl-1-pentanol, 1-hexanol, 1-butoxy-2-propanol, and ethyl lactate.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: October 3, 1995
    Assignee: Dow Corning Corporation
    Inventors: Ora L. Flaningam, Dwight E. Williams
  • Patent number: 5454841
    Abstract: Compositions comprising chemically synthesized or biosynthetic water-soluble melanin and at least one water dispersible cationic material which, when combined with the melanin, forms a composition that is suitable for use as a temporary haircolor. A process for temporarily coloring hair using those compositions.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: October 3, 1995
    Assignee: Clairol, Inc.
    Inventors: L. Wolfram, G. Wenke
  • Patent number: 5445757
    Abstract: The invention relates to compositions comprising 1,1,1,3,3-pentafluorobutane and ethanol. These compositions can be used especially as solvents for cleaning electronic components and for degreasing metals.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: August 29, 1995
    Assignee: Solvay (Societe Anonyme)
    Inventor: Pascal Pennetreau
  • Patent number: 5441360
    Abstract: Asphaltic concrete compounds comprised of asphalt cement and aggregate have, as a substantial portion of their respective aggregates, anthracite coal particles and fines, which are added specially as a lossy microwave material. These asphaltic concrete compounds are particularly useful when laid clown as a pavement, or a top layer of a pavement, which thereafter can be freed of ice, by using microwave energy to debond the ice. The debonding of the ice occurs without causing any noticeable melting of the ice, and the debonded ice is thereafter easily lifted and removed from the pavement of the way, serving as a roadway, highway, runway, or walkway. Also these asphaltic concrete compounds are particularly useful as patching materials when damaged pavement is being repaired, especially during cold weather.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: August 15, 1995
    Inventors: Howard W. Long, deceased, by Genevieve E. Long, executrix
  • Patent number: 5435935
    Abstract: Disclosed is a alkaline liquid hard-surface cleaning and disinfecting composition. The composition comprises from about 0.001% to about 15% by weight of a C.sub.4 -C.sub.7 dicarboxylate or hydroxydicarboxylate, from about 0.005% to about 10% by weight of a quaternary ammonium disinfectant, from about 0.001% o about 15% by weight of a detergent surfactant, a pH of from about 8.5 to about 13, from about 15% to 98% by weight of water, and from 0 to about 20% by weight of an organic solvent having a hydrogen bonding parameter of less than about 7.7. The composition can be used to provide streak-free cleaning and disinfecting of hard surfaces. Moreover, in the presence of the selected dicarboxylates, the quaternary ammonium disinfectant retains its disinfectancy properties and does not precipitate out of solution. The composition can be prepared as a dry formulation.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: July 25, 1995
    Assignee: The Procter & Gamble Company
    Inventor: Michael J. Kupneski