Patents Represented by Attorney Francis W. Young
  • Patent number: 4467595
    Abstract: This invention relates to melt extruded latent contractable elastic filaments which are formed by melt extruding certain segmented crosslinked thermoplastic polymers to form filaments, which filaments, when heat processed at elevated temperatures, significantly contract to yield an elastic filament. This invention also relates to the formation of composite covered yarn comprising said latent contractable melt extruded filaments. In addition, this invention relates to processes for forming articles from said latent contractable filaments or covered yarns comprising said contractable filaments and subsequently contracting said yarns to form an elastic article.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: August 28, 1984
    Assignee: Akzona Incorporated
    Inventor: Aloysius A. J. Kramers
  • Patent number: 4468526
    Abstract: A process for the preparation of thiuram disulfides substituted with aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radicals, said process comprising reacting a suitably substituted secondary amine with carbon disulfide and in the presence of a tertiary amine or ammonia, oxygen or oxygen-containing gas, a solvent, and a metalliferous catalyst, at a temperature of between 0.degree. C. and 200.degree. C.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: August 28, 1984
    Assignee: Akzona Incorporated
    Inventors: Ludwig Eisenhuth, Hans G. Zengel, Manfred Bergfeld
  • 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: 4465310
    Abstract: An improved split body clamping or pressure containment device is provided where the body members are retained together through the use of a plurality of double ended links. The ends of each of the links are juxtaposed to and associated respectively with each of the clamping body members. Rotary cams mounted on shafts which pass through the ends of the links compress the body members together and cause other movements of one of the body members and the links.
    Type: Grant
    Filed: October 6, 1982
    Date of Patent: August 14, 1984
    Assignee: Akzona Incorporated
    Inventor: Lee A. Archer
  • Patent number: 4460555
    Abstract: A process for making particulate substantially water-insoluble magnesium phosphate product and method of use of the product for removing ammonia from aqueous solutions. The particulate magnesium phosphate product acts as a remarkably effective scavenger wherein under equilibrium conditions only about six (6) grams of the product are required to bind the ammonia (more exactly, ammonium ions) liberated from one (1) gram of the urea, a result far superior to traditional zirconium phosphate (ZP) prior art materials which under ideal conditions require about 17 to 20 grams of ZP per gram of urea. The particulate magnesium phosphate product can also be used for the removal of ammonium ions either produced by enzymatic or non-enzymatic hydrolysis of urea or proteins or amino acids or available as NH.sub.4.sup.+ from its native source. The magnesium phosphate product is made by forming a slurry of water and magnesium hydroxide in the presence of a phosphate ion-containing buffer having a pH of about 6.5 to about 8.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: July 17, 1984
    Assignee: Organon Teknika Corporation
    Inventor: Ralph P. Thompson
  • Patent number: 4459424
    Abstract: A process for the preparation of thiuram disulfides substituted with aliphatic cycloaliphatic, araliphatic, or aromatic hydrocarbon radicals, said process comprising reacting a suitably substituted secondary amine having a pK.sub.a .gtoreq.8 with carbon disulfide in a solvent and in the presence of oxygen or oxygen-containing gas, a solvent, and a metalliferous catalyst, at a temperature of between 0.degree. C. and 200.degree. C.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: July 10, 1984
    Assignee: Akzona Incorporated
    Inventors: Ludwig Eisenhuth, Hans G. Zengel, Manfred Bergfeld
  • Patent number: 4457900
    Abstract: A finely divided silicic acid simultaneously suitable as a filtering auxiliary and as a beer stabilizing agent in the filtration of beer. The acid is particulate, and the particles are of an essentially spherical or spheroidal shape with SiO.sub.2 content of at least 95% and an Na.sub.2 O content of less than 0.25%.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: July 3, 1984
    Assignee: Akzona Incorporated
    Inventor: Gerhard Steenken
  • 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: 4442022
    Abstract: The present invention relates to a photopolymerizable composition comprising a polymerizable, polyethylenically unsaturated compound, benzil and/or fluorenone, a specific biphenyl ketone such as para-phenyl benzophenone, and a reducing agent such as a tertiary amine. The present composition permits rapid and complete curing. Moreover, in the photopolymerization of compounds sensitive to air inhibition non-tacky surfaces are obtained. The effect observed is based on a synergism between the present photoinitiators. The advantages of the invention are most manifest in curing relatively thick layers of materials.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: April 10, 1984
    Assignee: Akzona, Inc.
    Inventors: Tjerk van der Hauw, Hans Jaspers
  • 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: 4433135
    Abstract: The use of aluminum sulfate as a dessicant for drying the starting materials used in polymerization reactions employing readily hydrolyzable catalysts is disclosed. The aluminum sulfate is allowed to remain in the reaction mixture during polymerization, and, indeed, may advantageously be allowed to remain in the reaction product without any deleterious effect.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: February 21, 1984
    Assignee: Akzona Incorporated
    Inventors: Ronald W. Worley, David A. Johnson
  • Patent number: 4431246
    Abstract: An improved insulation piercing contact for use in an electrical connector is provided. The contact is made of a sheet metal stamping, which includes a top portion for making electrical contact with a first conductor, and a bottom portion which includes at least two tines. Each tine is bevelled and has a bottom edge which pierces the insulation of a second conductor and makes contact. The tines may project away from one of the planar surfaces of the contact.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: February 14, 1984
    Assignee: Akzona Incorporated
    Inventor: James L. Vaden
  • 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: 4425444
    Abstract: A method for the manufacture of urethane-modified polyisocyanurate foams in which an isocyanate is blended with a "B" side comprising a polyol blend, a surfactant, a blowing agent, and a catalyst. The polyol blend comprises at least 5% (wt.) of a mixture of a polyalkoxylated amine and a polyalkoxylated quaternary ammonium borate ester, at least 40% (wt.) of a resin polyol, with any remainder being a polyether or polyester polyol. All components of the "B" side will remain a homogeneous liquid without phase separation and without the need for agitation for at least 7 days after blending. The resin polyols are preferably moderate viscosity, aromatic polyester polyols derived from polycarbomethoxyl-substituted diphenyls, polyphenyls, and benzyl esters of the toluate family.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: January 10, 1984
    Assignee: Akzona Incorporated
    Inventor: Kenneth B. White
  • Patent number: 4425445
    Abstract: A method for the manufacture of polyisocyanurate foams which comprises blending a "B" side with an "A" side comprising an isocyanate. The "B" side comprises a diol, an amine/quaternary ammonium borate ester blend, a surfactant, a blowing agent, and a metal catalyst whose weight does not exceed 1.5% of the total weight of the "B" side. The "B" side remains a homogeneous liquid for at least seven days without the need for agitation and the foam formed by this method has a friability not exceeding 30%.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: January 10, 1984
    Assignee: Akzona, Inc.
    Inventor: Kenneth B. White
  • Patent number: 4421439
    Abstract: The invention relates to a supporting fabric having a width of at least 30 cm, and preferably more than 2-5 m, and containing warp and weft yarns of a synthetic material, for bearing one or more layers of sand, gravel, stones, clay, loam or similar bulk or other material to a height of at least 10 cm, which height is in actual practice often 5-15 m. The yarns extending in the warp direction of the fabric are formed by straight warp yarns and binder warp yarns, the straight warp yarns each having a higher strength than the binder warp yarns.The invention also comprises a method for building a road embankment, a dike, a dam, or some other structure formed from bulk material, such as, for instance, sand, gravel or stones. In such a structure, one or more layers of supporting fabric are incorporated.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: December 20, 1983
    Assignee: Akzona Incorporated
    Inventors: Antonius W. M. ter Burg, Gerrit den Hoedt
  • Patent number: RE31599
    Abstract: A low density matting structure of improved transverse strength obtained by vertically laying continuous melt-spun thermoplastic macrofilaments (diameter=0.1-1.5 mm) onto a horizontally moving profiled support in overlapping rows of irregularly looped filaments to form a peak and valley three-dimensional structure undulating in its longitudinal and/or transverse directions. The matting articles consist essentially of the melt-spun filaments which are self-bonded or fused at random points of intersection without using any bonding agent or reinforcing inserts, and the resulting matting is especially distinguished by a high transverse strength per unit of surface weight of at least 2 Nm/g and preferably 4 Nm/g.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: June 12, 1984
    Assignee: Akzona Incorporated
    Inventors: Alfred Rasen, Rolf Vollbrecht, Klemens Schenesse