Patents Represented by Attorney Herbert J. Zeh, Jr.
  • Patent number: 5130489
    Abstract: An improved process is provided for producing m-aminophenols comprising reacting resorcinol and an amino compound in an inert organic solvent and in the presence of an aluminosilicate catalyst.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: July 14, 1992
    Assignee: Indspec Chemical Corporation
    Inventor: Hans Dressler
  • Patent number: 5049641
    Abstract: A rubber compounding resin which is low fuming, nonhygroscopic and low in free resorcinol. It is made by first reacting resorcinol or other phenolic compound and styrene or other vinyl compound in a molar ratio of 1.0 mole of resorcinol to 0.25 to 1.0 mole of styrene after which formaldehyde or other aldehyde is added in the amount of 0.5 to 0.7 moles. Alternatively, the resorcinol can first be reacted with the formaldehyde after which the styrene is added. The composition resulting from the above procedure has been identified as having the structure ##STR1## wherein X is hydroxyl, hydrogen or an alkyl group having 1 to 4 carbon atoms. An intermediate in making the above compound has been identified as having the structure.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: September 17, 1991
    Assignee: Indspec Chemical Corporation
    Inventors: Richard T. Hood, Robert M. Lamars
  • Patent number: 5021522
    Abstract: An improved vulcanizable rubber composition of the type comprising (I) a rubber component selected from natural rubber, synthetic rubber or combinations thereof, and (II) a methylene donor compound which generates formaldehyde upon heating, and (III) a phenolic novolak resin type methylene acceptor compound is disclosed. The improvement comprises having at least ten mole percent of the phenolic groups of the phenolic novolak resin aralkylated with one or more compounds selected from the group consisting of styrene, alpha methyl styrene, beta methyl styrene, p-methyl styrene, alpha chloro styrene and vinyl naphthalenes.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: June 4, 1991
    Assignee: Indspec Chemical Corporation
    Inventors: Bojayan Durairaj, Alex Peterson, Jr., Robert M. Lamars, Richard T. Hood
  • Patent number: 4956394
    Abstract: The physical and mechanical properties of closed cell phenolic foam are improved by incorporating into certain foamable phenolic resole compositions small quantities of alkyl glucosides, particularly methyl glucosides. The alkyl glucosides also improve the process for preparing the closed cell phenolic foam.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: September 11, 1990
    Assignee: Thermal Products International
    Inventors: Edward W. Kifer, V ncent J. Wojtyna, James P. Colton, Jeffrey T. Stickel
  • Patent number: 4950329
    Abstract: A wood preservative composition comprises a wood preservative such as a chromated copper arsenate-oil emulsion or an ammoniacal copper arsenate emulsion having about 0.1 to 15 percent chromated copper arsenate, ammoniacal copper arsenate, or ammoniacal copper zinc arsenate, about 1 to 20 percent oil and about 0.3 to 2.5 percent (based on total final emulsion) surfactant material. The first surfactant preferably has a hydrophilic lipophilic balance of about 7 to 9.5 and a second surfactant has a hydrophilic lipophilic balance of about 15 to 20. It is preferred that the first surfactant have an ethoxyl mole ratio less than about 5 and that the second surfactant have a mole ratio greater than about 15. The surfactant material may be composed of a first surfactant having an average mole ratio of about 1 to 5 and a second surfactant having an average mole ratio of about 20 to 100. The composition is storage stable for extended periods and provides a number of beneficial properties for wood products.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: August 21, 1990
    Assignee: Hickson Corporation
    Inventors: Craig R. McIntyre, Eugene A. Pasek
  • Patent number: 4945169
    Abstract: Novel homo bis-maleimide compounds containing sulfonate linkages are made by reacting an aromatic disulfonyl halide with m- or p-hydroxy phenyl maleimide and have the following formula: ##STR1## Similarly, co-bis-maleimides are made by reaching an aromatic disulfonyl halide, aromatic dihydroxy compound and m or p hydroxy phenyl maleimide having the structural formula: ##STR2## Herein R and R' are the same or different and are divalent radicals selected from the group consisting of meta arylene, para arylene, naphthalene and radicals of the formula A--A and A--Z--A wherein A is selected from the group consisting of meta arylene, para arylene and naphthalene and Z is selected from the group consisting of meta arylene, para arylene, naphthalene, carbonyl, sulfone, sulfide, sulfonyl, sulfonate, sulfoxide, ether, methylene, isopropyl, oxygen, alkyl, --CH.dbd.CH-- and --C.tbd.C-- and R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: July 31, 1990
    Assignee: Indspec Chemical Corporation
    Inventor: Bojayan Durairaj
  • Patent number: 4942064
    Abstract: A method for fixing chromated copper arsenate agents in wood by treating the wood with a fixing agent selected from the following: ##STR1## wherein R.sub.1 is the same or different and is hydrogen, phenyl or an alkyl group having 1 to 4 carbon atoms, R.sub.2 is hydrogen or an alkyl group having 1 to 4 carbon atoms and R.sub.3 is (R.sub.4).sub.2 (HO)C-- or R.sub.4 OOC-- and R.sub.4 is hydrogen, an alkyl group having 1 to 4 carbon atoms, phenyl or pyridyl.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: July 17, 1990
    Assignee: Hickson Corporation
    Inventors: Theron R. Brayman, Eugene A. Pasek, Gregory D. Wall
  • Patent number: 4899932
    Abstract: An improved highway grade crossing for railroad tracks. The crossing is comprised of a plurality of wood panels which are capped with an expanded polymer. The polymer provides a wear surface for the crossing which can be replaced without having to take up the entire crossing structure. In one embodiment the polymer cap is a rubber and steel composite. The steel keeps the rubber stretched to substantially avoid temperature induced expansion and buckling of the rubber. Deterioration resulting from vehicular traffic over a buckled surface is thus avoided.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: February 13, 1990
    Assignee: Koppers Industries, Inc.
    Inventors: Dale K. Beachy, Robert B. Dehls, S. Hudson Owen, James H. Simpson
  • Patent number: 4892249
    Abstract: A railroad crossing is provided in which transverse and end panels are joined by means of splines fitted into indentations on side surfaces of said panels whereby pairs of panels are joined together with a spline fitting partly into each side or end of adjoining panels; and lateral anchor members for fixing the panels adjacent to said rails, the end panels and the outer field panels whereby the need is obviated for affixing the panels to the ties by means of surface spikes. In one embodiment an anchor is used which has vertical wall sections which project upwardly and have inwardly projecting horizontal lips and a spline retaining plate positioned beneath the lips. The spline rests on and is positioned transversely across said lips, and removable means are provided to fix the spline to the retaining plate.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: January 9, 1990
    Assignee: Koppers Industries, Inc.
    Inventor: S. Hudson Owen
  • Patent number: 4892908
    Abstract: A vulcanizable rubber composition and method for making the same in which the rubber component is mixed with a methylene donor and acceptor and the methylene acceptor is a compound of the general structural formula ##STR1## wherein R may be the same or different radicals and is consisting of hydrogen, alkyl of 1 to about 20 carbon atoms, aryl of about 6 to about 12 carbon atoms, R.sub.1 is --H, --OH, --O--CO--R.sub.3 or --O--R.sub.4 and R.sub.3 and R.sub.4 are each an alkyl or aryl group having 1 to about 12 carbon atoms, andWherein R.sub.2 is a hydrogen radical, saturated or unsaturated of 1 to about 20 carbon atoms, naphtyl or an aromatic radical of the formula ##STR2## wherein R may be the same of different and is defined as above.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 9, 1990
    Assignee: Indspec Chemical Corporation
    Inventors: Bojayan Durairaj, Alex P. Peterson, Jr., Gideon Salee
  • Patent number: 4889891
    Abstract: Rubber compounding novalak type resins are prepared by reacting (A) an alkyl substituted resorcinol or phenol prepared by reacting at least one of the compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.2 and an alkyl of 1 to about 20 carbon atoms with a mono or polyunsaturated hydrocarbon selected from the group consisting of butene, diisobutylene, piperylene, dipentene, dicyclopentadiene, cyclopentadiene, isoprene, butadiene, pinene, styrene and divinylbenzene in the presence of an acid catalyst, wit (B) an aldehyde selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde and furfural.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: December 26, 1989
    Assignee: Indspec Chemical Corporation
    Inventors: Bojayan Durairaj, Alex Peterson, Jr., Gideon Salee
  • Patent number: 4769230
    Abstract: Arsenic acid is formed from arsenous acid and water under oxygen pressure with catalytic amounts of nitric acid and a halide whereby the nitric oxide by-product is regenerated to nitric acid for contact with fresh arsenous acid.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: September 6, 1988
    Assignee: Koppers Company, Inc.
    Inventors: Nicholas P. Greco, Byung K. Ahn, John J. Kozak
  • Patent number: 4742663
    Abstract: Wooden beams containing concealed load distribution means embedded therein are disclosed herein. The wooden beams may be either laminated or unitary. The load distribution means is comprised of an elongated member suitably adapted such that loads exerted on the elongated member are therefrom transmitted to and more evenly distributed within the wooden beam.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: May 10, 1988
    Assignee: Koppers Company, Inc.
    Inventor: Harlan J. Demers
  • Patent number: 4732320
    Abstract: A railroad crossing is provided in which gage, transverse end, and outer field panels are joined by means of splines fitted into indentations on side surfaces of the panels whereby pairs of panels are joined together with a spline fitting partly into each side or end of adjoining panels; and lateral anchor members for fixing the panels adjacent to said rails, the end panels and the outer field panels whereby the need is obviated for affixing the panels to the ties by means of surface spikes.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: March 22, 1988
    Assignee: Koppers Company, Inc.
    Inventor: S. Hudson Owen
  • Patent number: 4705879
    Abstract: Alkylresorcinol phosphites useful as antioxidants in lubricants and greases are provided of the formula: ##STR1## wherein R is selected from H and alkyl, and R.sup.1 is an alkyl, said alkyl having from 8 to 18 carbon atoms and consisting of at least 75% secondary alkyl.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: November 10, 1987
    Assignee: Koppers Company, Inc.
    Inventor: Hans Dressler
  • Patent number: 4679362
    Abstract: Articles and a method are disclosed useful for providing a lift insert for a cast concrete product, such as a cast concrete slab or panel. The articles include a threadless plug for temporary insertion into an insert for receiving a lifting device in a cast concrete product, an insertion tool therefor, and the insert assembly. The threadless plug is characterized by an elastomeric tubular member having closure and/or abutment means on each end and dimensioned such that, in its operative position in the lift insert, such as a coil insert, the portion of the tubular member between the ends is placed in tension to positively seal against ingress of concrete into the top of the coil or insert and between the void plug and the coil during casting.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: July 14, 1987
    Assignee: Koppers Company, Inc.
    Inventor: Richard C. Mess
  • Patent number: 4679658
    Abstract: A gaff is provided for use in climbing a wooden utility pole (to include trees), said gaff having one or more grooves preferably running along a line parallel to the line formed by the intersection of the planes of its top two sides and/or one or more teeth for cutting into the pole.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: July 14, 1987
    Assignee: Koppers Company, Inc.
    Inventor: Harlan Demers
  • Patent number: 4663143
    Abstract: A ternary alloy comprised of cerium, nickel and manganese is characterized in having CaCu.sub.5 hexagonal crystal structure and stoichiometry. Members of a preferred class of compounds, represented by the empirical formula CeNi.sub.5-x Mn.sub.x wherein "x" has a value between 0.1 and about 1.0. These alloys react with hydrogen readily and can absorb a large amount of hydrogen at moderate pressure and temperature and are particularly suitable for use as hydrogen storage materials.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: May 5, 1987
    Assignee: Koppers Company, Inc.
    Inventors: William E. Wallace, Faiz Pourarian
  • Patent number: 4661378
    Abstract: A novel composition for treating asphalt and concrete surfaces is provided formed of a mixture of topped coke oven tar, an aromatic solvent having an API Gravity@ 60.degree. F. of 11-30, Specific Gravity 60.degree./60.degree. F. of from 0.876-0.993, Distillation Range .degree. F. of 310-450 IBP (initial boiling point) to 350-550 DP (dry point), and a Flash pt. .degree. F. TCC of 110-250; and a bituminous pavement rejuvenator which is a composition derived from coal tar and comprises a mixture of di-, tri- and tetracyclic aromatic compounds and their alkyl homologs containing lower alkyl groups together with a significant amount of phenolic and hydroxy derivatives and having a specific gravity at 25.degree./25.degree. C. of at least 1.08, an initial boiling point of at least 180.degree. C., and a continuous boiling range to at least 300.degree. C., 70-40% by volume of the material remaining as residue at 300.degree. C., and the distillate to 300.degree. C. having a minimum specific gravity at 25.degree./25.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: April 28, 1987
    Assignee: Koppers Company, Inc.
    Inventor: Edward W. McGovern
  • Patent number: 4656302
    Abstract: A group of phenolic phosphite compounds having the formula ##STR1## wherein R and R' may be the same or different and are tertiary alkyl groups containing from 4 to 12 carbon atoms. These compounds are disclosed to be useful as stabilizers and antioxidants in various organic materials.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: April 7, 1987
    Assignee: Koppers Company, Inc.
    Inventor: Hans Dressler