Patents Represented by Attorney Robert F. Green
  • Patent number: 5182099
    Abstract: A method of preventing or decreasing the emission of mercury vapor in the mouth, from a mercury amalgam filling, comprising contacting the amalgam filling with an oral composition containing sulfur in an amount sufficient to reduce or eliminate the emission of mercury or mercury vapor. The oral composition may be in the form of a toothpaste, chewing gum, mouthwash water, mouth spray, or the like.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: January 26, 1993
    Assignee: Swedima, Inc.
    Inventors: Eston Jonsson, Roland Waern
  • Patent number: 4880465
    Abstract: A non-pigmented ink suitable for use in ink jet printing is disclosed. The ink comprises a resin component, hollow microspheres, and a suitable carrier vehicle. The hollow microspheres contain a central void region filled with a liquid capable of diffusing through the walls of said microspheres and have an inside diameter from about 0.1 to about 0.5 micron and an outside diameter from about 0.4 to about 1 micron.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: November 14, 1989
    Assignee: Videojet Systems International, Inc.
    Inventors: Adrian Loria, Josephine Aguilar
  • Patent number: 4652396
    Abstract: There is disclosed a method for increasing the electrical conductivity of a porous synthetic polymeric material. The method comprises depositing an effective amount of a polyacetylene polymerization catalyst throughout the porous structure, subsequently exposing said material to acetylene under polymerization conditions, for a time sufficient to form polyacetylene within the porous structure, and finally doping the resultant product with a conductivity modifying amount of either an electron donor dopant or an electron acceptor dopant.There is also disclosed an improved electrodialysis process wherein an electrolyte solution is placed between opposite faces of two membranes, the first membrane being an anion exchange membrane and the second membrane being a cation exchange membrane, while being subjected to a primary electric field causing the cations in the electrolyte to pass through the cation exchange membrane and the anions to pass through the anion exchange membrane.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: March 24, 1987
    Assignee: Akzona Incorporated
    Inventor: Kenneth B. Wagener
  • Patent number: 4519909
    Abstract: Novel microporous polymers in forms ranging from films to blocks and intricate shapes from synthetic thermoplastic polymers, such as, olefinic, condensation, and oxidation polymers, are disclosed. In one embodiment the microporous polymers are characterized by a relatively homogeneous, three-dimensional cellular structure having cells connected by pores of smaller dimension. Also disclosed are microporous polymer products which contain relatively large amounts of functionally useful liquids and behave as solids.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: May 28, 1985
    Assignee: Akzona Incorporated
    Inventor: Anthony J. Castro
  • Patent number: 4467114
    Abstract: A process is disclosed for selectively making trans-cyclohexane-1,4-diisocyanate, trans-cyclohexane-1,4-diamine, a trans-cyclohexane-1,4-diurethane, a trans-cyclohexane-1,4-diurea and trans-cyclohexane-1,4-disulphonyl urea by reacting ammonia with a mixture of cis and trans-cyclohexane-1,4-dicarboxylic acid, a lower alkyl ester, a glycol ester, an oligomeric ester or a polyester to make a solid trans-dicarboxylic acid diamide in a first step. The diamide is chlorinated to form cyclohexane-1,4-dicarboxylic acid-bis-N-chloramide.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: August 21, 1984
    Assignee: Akzona Incorporated
    Inventors: Hans Zengel, Manfred Bergfeld
  • Patent number: 4466840
    Abstract: A method for inhibiting corrosion of a metal surface is disclosed. The method comprises contacting said metal surface with a corrosion inhibitor of the formula ##STR1## wherein R is selected from the group consisting of aliphatic radicals containing from about 6 to about 22 carbon atoms, R.sub.1 --C.sub.m H.sub.2m --wherein R.sub.1 is alkoxy containing from 6 to 22 carbon atoms and m is an integer of from 2 to 6, and ##STR2## wherein R.sub.2 is alkyl containing from 1 to 20 carbon atoms, x is an integer of from 1 to 10 and each R.sub.3 is independently hydrogen or methyl; and R' is selected from the group consisting of hydrogen, C.sub.1 -C.sub.12 alkyl, and C.sub.1 -C.sub.12 alkoxy, at a temperature and for a period of time sufficient to inhibit corrosion of said metal surface.A method for pretreating a metal surface to improve the adhesion of paint thereto is disclosed.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: August 21, 1984
    Assignee: Akzona Incorporated
    Inventors: Dieter Frank, Lincoln D. Metcalfe
  • Patent number: 4457871
    Abstract: A process is disclosed for selectively making trans-cyclohexane-1,4-diisocyanate, trans-cyclohexane-1,4-diamine, a trans-cyclohexane-1,4-diurethane, a trans-cyclohexane-1,4-diurea and trans-cyclohexane-1,4-disulphonyl urea by reacting ammonia with a mixture of cis and trans cyclohexane-1,4-dicarboxylic acid, a lower alkyl ester, a glycol ester, an oligomeric ester or a polyester to make a solid trans-dicarboxylic acid diamide in a first step. The diamide is chlorinated to form trans-cyclohexane-1,4-dicarboxylic acid-bis-N-chloramide.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: July 3, 1984
    Assignee: Akzona Incorporated
    Inventors: Hans Zengel, Manfred Bergfeld
  • Patent number: 4442010
    Abstract: A process for the concentration and dewatering of an aqueous suspension of feldspathic minerals, comprising adding to the suspension a filter aid having the general formula: ##STR1## wherein R.sub.1 is an alkyl group of between 8 and 18 carbon atoms and wherein x and y are integers greater than 0 whose sum is between 2 and 15.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: April 10, 1984
    Assignee: Akzona Incorporated
    Inventor: Joseph L. Mehaffey
  • Patent number: 4439370
    Abstract: A process is disclosed for selectively making trans-cyclohexane-1,4-diisocyanate, trans-cyclohexane-1,4-diamine, a trans-cyclohexane-1,4-diurethane, a trans-cyclohexane-1,4-diurea and trans-cyclohexane-1,4-disulphonyl urea by reacting ammonia with a mixture of cis and trans cyclohexane-1,4-dicarboxylic acid, a lower alkyl ester, a glycol ester, an oligomeric ester or a polyester to make a solid trans-dicarboxylic acid diamide in a first step. The diamide is chlorinated to form trans-cyclohexane-1,4-dicarboxylic acid-bis-N-chloramide.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: March 27, 1984
    Assignee: Akzona Incorporated
    Inventors: Hans Zengel, Manfred Bergfeld
  • Patent number: 4436844
    Abstract: There is disclosed an improved process for the manufacture of a foundry core or mould, comprising forming into the foundry core or mould a composition comprising a granular filler, a synthetic resin which cures under the action of an acid and a desensitized ketone peroxide composition and treating said formed composition with sulphur dioxide, wherein the improvement comprises using as the desensitizing agent a dialkyl ester of an aliphatic dicarboxylic acid of the general formula ##STR1## wherein n=1-7 and R.sub.1 and R.sub.2 =a branched or non-branched alkyl group having 3 to 5 carbon atoms.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: March 13, 1984
    Assignee: Akzona Incorporated
    Inventors: Arnold Schroeder, Lodewijk Roskott
  • Patent number: 4434260
    Abstract: Lubricant compositions comprising .alpha.-olefin/maleinimide copolymers is disclosed. Also disclosed is a process for the shaping of thermoplastic synthetic resins utilizing .alpha.-olefin/maleinimide copolymers.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: February 28, 1984
    Assignee: Akzona, Inc.
    Inventors: Heinz Beck, Werner Holtvoigt, Ambar Mukerjee
  • Patent number: 4429023
    Abstract: A method for complexing metal oxide particles in an organic medium is disclosed. The method comprises incorporating into said medium an effective amount of a complexing agent of the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl and alkenyl groups containing from 4 to 22 carbon atoms, aryl groups containing from 4 to 10 carbon atoms, alkyl and alkenyl groups containing from 4 to 22 carbon atoms substituted with one or more aryl groups containing from 4 to 10 carbon atoms and aryl groups containing from 4 to 10 carbon atoms substituted with one or more alkyl or alkenyl groups containing from 1 to 22 carbon atoms; R.sub.2 is selected from the group consisting of hydrogen, --(CH.sub.2 CH.sub.2 O).sub.
    Type: Grant
    Filed: February 5, 1982
    Date of Patent: January 31, 1984
    Assignee: Akzona Incorporated
    Inventors: Dieter Frank, Lincoln D. Metcalfe
  • Patent number: 4422879
    Abstract: An improved inversion process for the preparation of a paper sizing agent which is an aqueous dispersion containing a high content of free rosin in the form of fortified rosin and/or non-fortified rosin, water, and an anionic dispersing agent is disclosed. The improvement comprises using as the dispersing agent a polyethoxylated, sulfated rosin or a derivative thereof. There is also disclosed an aqueous dispersion useful as a paper sizing agent comprising from about 10 to about 60% of fortified and/or non-fortified rosin, from about 1 to about 10% of a polyethoxylated, sulfated rosin or a derivative thereof, based on the total weight of all solids in the dispersion, and a sufficient amount of water to form a dispersion.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: December 27, 1983
    Assignee: Akzona, Inc.
    Inventors: Guenter Poppel, Horst Schuermann, Gabriel Falkenberg
  • Patent number: 4418211
    Abstract: A process is disclosed for selectively making trans-cyclohexane-1,4-diisocyanate, trans-cyclohexane-1,4-diamine, a trans-cyclohexane-1,4-diurethane, a transcyclohexane-1,4-diurea and trans-cyclohexane-1,4-disulphonyl urea by reacting ammonia with a mixture of cis and trans cyclohexane-1,4-dicarboxylic acid, a lower alkyl ester, a glycol ester, an oligomeric ester or a polyester to make a solid trans-dicarboxylic acid diamide in a first step. The diamide is chlorinated to form trans-cyclohexane-1,4-dicarboxylic acid-bis-N-chloramide.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: November 29, 1983
    Assignee: Akzona Incorporated
    Inventors: Hans Zengel, Manfred Bergfeld
  • Patent number: 4409367
    Abstract: There is disclosed an improved process for cross-linking polymers by contacting said polymers with a cross-linking agent at an elevated temperature. The improvement comprises using as the cross-linking agent a compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of alkyl groups having 1-22 carbon atoms, alkenyl groups having 2-22 carbon atoms, cyclohexyl groups having 6-20 carbon atoms, phenyl groups having 6-20 carbon atoms, aralkyl groups having 7-20 carbon atoms, alkyloxy groups having 1-22 carbon atoms, alkenyloxy groups having 2-22 carbon atoms, and cyclohexyloxy groups having 6-20 carbon atoms, all of which groups may be substituted or unsubstituted; R.sub.3 is selected from the group consisting of hydrogen, alkyl groups having 1-22 carbon atoms, alkenyl groups having 2-22 carbon atoms, cyclohexyl groups having 6-20 carbon atoms, phenyl groups having 6-20 carbon atoms, aralkyl groups having 7-20 carbon atoms, and ##STR2## wherein R.sub.
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: October 11, 1983
    Assignee: Akzona Incorporated
    Inventors: Wilhelmus M. Beijleveld, Jan D. van Drumpt
  • Patent number: 4409109
    Abstract: Novel fabric softening compounds of the formulae ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of aliphatic radicals containing from about 8 to about 22 carbon atoms, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen and methyl, R.sub.5 is selected from the group consisting of hydrogen and aliphatic radicals containing from about 8 to about 22 carbon atoms, x and y are independently integers from 1 to about 20, and z is 0 or 1, are disclosed. Also disclosed is a method for conditioning textiles utilizing said compounds.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: October 11, 1983
    Assignee: Akzona Incorporated
    Inventor: James M. Richmond
  • Patent number: 4405641
    Abstract: The use of monocarboxylic-acid-2-hydroxyalkyl esters derived from long-chain epoxides containing at least about eight carbon atoms and aliphatic long-chain monocarboxylic acids containing at least about twelve carbon atoms, to regulate the consistency of cosmetic and pharmaceutical formulations, is disclosed.The monocarboxylic-acid-2-hydroxyalkyl esters employed in the present invention may be utilized as substitutes for natural or synthetic wax-like consistency regulators, in particular for beeswax, in cosmetic and pharmaceutical formulations such as oil-in-water and water-in-oil emulsions, as well as anhydrous formulations.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: September 20, 1983
    Assignee: Akzona Incorporated
    Inventor: Karl Seibert
  • Patent number: 4404401
    Abstract: An improved process for the preparation of para-amino diphenylamine in which para-nitroso-diphenylhydroxylamine is catalytically hydrogenated in the presence of an organic solvent and one or more metal components selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium, and platinum, and their sulfidic compounds, at temperatures from 20.degree. to 200.degree. C., is disclosed. The improvement comprises utilizing as the organic solvent one or more members of the group consisting of aniline and aniline derivatives containing ring-alkyl groups, N-alkyl groups, or a combination thereof, wherein the ring-alkyl groups contain a total of 1 to 6 carbon atoms and the N-alkyl groups contain from 1 to 6 carbon atoms.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: September 13, 1983
    Assignee: Akzona Incorporated
    Inventors: Hans G. Zengel, Manfred Bergfeld
  • Patent number: 4391962
    Abstract: An improved process for the suspension polymerization of vinyl chloride in the presence of a radical initiator and at least two suspension stabilizers is disclosed. The improvement comprises performing the polymerization in the presence of at least one primary stabilizer selected from the group consisting of water-soluble partially hydrolyzed polyvinyl acetates and methyl hydroxypropyl cellulose and at least one secondary stabilizer selected from the group consisting of N-alkyl gluconamides wherein the alkyl group contains from about 16 to about 20 carbon atoms.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: July 5, 1983
    Assignee: Akzona Incorporated
    Inventors: Petrus H. M. Schreurs, Willem F. Verhelst
  • Patent number: 4376841
    Abstract: A process for copolymerizing unsaturated polyester resins is disclosed wherein said resin is copolymerized in the presence of a perketal and an acid or acid-releasing compound.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: March 15, 1983
    Assignee: Akzona Incorporated
    Inventor: Lodewijk Roskott