From Organic Reactant Containing A Sulfur To Oxygen Bond, E.g., -s(=o), Etc. Patents (Class 528/391)
  • Patent number: 4451645
    Abstract: An epoxy compound includes one or two aromatic rings, one N-diglycidyl group per aromatic ring and one or two halogen or halogen-containing groups per aromatic ring, the epoxy compound having the general formula: ##STR1## in which Y is selected from A and ##STR2## each A being independently selected from halogen, halogen containing group and H, provided that at least one of the groups A per aromatic ring is a halogen or halogen containing group. In any one compound, when A is a hologen or halogen containing group, it is preferred that each A is the same.When the epoxy compound contains only one aromatic ring the group A may be a polyfluoroalkyl group in which case one or two such groups may be attached to the aromatic ring; or a polyfluoro-alkoxy group, in which case only one such group is attached to the aromatic ring.When the epoxy compound contains two aromatic rings, the group A may be Cl, Br, or a polyfluoroalkyl group and one or two such groups may be attached to each aromatic ring.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: May 29, 1984
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Peter Johncock
  • Patent number: 4417039
    Abstract: Aromatic and aromatic heterocyclic enyne polymers are prepared by reacting a di-.beta.-bromovinylbenzene and a diacetylenic compound. The polymers have relatively low glass transition temperatures for fabrication, and after heat treatment exhibit high glass transition temperatures, as well as low solvent susceptibility. Also provided is a new composition of matter 1,4-bis-(cis-.beta.-bromovinyl)benzene.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: November 22, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Bruce A. Reinhardt, Fred E. Arnold
  • Patent number: 4415720
    Abstract: Aromatic polysulphones are prepared by the reaction under substantially anhydrous conditions in the presence of a fluoroalkane sulphonic acid, particularly trifluoromethane sulphonic acid or difluoromethane sulphonic acid, of the reactants selected from the following class:(a) an aromatic compound of specified formula (such as diphenyl ether or diphenyl) and a sulphonating agent;(b) an aryl monosulphonic acid of specified formula (such as diphenyl ether-4-sulphonic acid or diphenyl-4-sulphonic acid); and(c) an aryl disulphonic acid of specified formula (such as diphenyl ether-4,4'-disulphonic acid or diphenyl-4,4'-disulphonic acid) and an aromatic compound as defined in (a).
    Type: Grant
    Filed: September 22, 1981
    Date of Patent: November 15, 1983
    Assignee: Imperial Chemical Industries PLC
    Inventor: John B. Rose
  • Patent number: 4412047
    Abstract: 1,5-Dimethyl-1,2;5,6-diepoxycyclooctane is prepared by epoxidizing 1,5-dimethylcycloocta-1,5-diene with aqueous peracetic or perpropionic acid at a temperature not exceeding 50.degree. C. and within a pH range from 1.5 to 5.5.The diepoxide according to the invention can be cured by means of curing agents for epoxide resins to give moulded materials having valuable mechanical properties. It is also suitable for use as a reactive, latent diluent.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: October 25, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Charles E. Monnier, Friedrich Lohse
  • Patent number: 4395541
    Abstract: Ionene polymers have been prepared and have been found to be useful in cosmetic compositions for the treatment of the hair and skin, or in the treatment of natural or synthetic textile fibers.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: July 26, 1983
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Bernard Jacquet, Gerard Lang, Alain Malaval, Serge Forestier, Do Le Trung
  • Patent number: 4383054
    Abstract: A self curing aqueous solution/dispersion comprising about 50-70 wt. % water, about 25-35 wt. % of a novel N-polymethylene substituted polyoxypropylene polyamine and about 3-9 wt. % of a curable polymer-forming component such as an epoxy-resin is described. The solution is useful for injection into permeable earth formations such as unconsolidated sands to reduce their permeability and consolidate the formation. Novel N-substituted polyamines of the formula [NaO.sub.3 S--R.sub.1 ].sub.m A wherein R.sub.1 is a C.sub.2 to C.sub.6 polymethylene group and A is a polyoxyalkylene polyamine are employed in the solution to render the epoxy-resin component adequately soluble or dispersible in the aqueous solution and to act as the curing agent for the resin.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: May 10, 1983
    Assignee: Texaco Inc.
    Inventors: Heinz Schulze, Harold G. Waddill
  • Patent number: 4379872
    Abstract: Amphoteric amino sulfonate derivatives of epoxy resins having at least one terminal group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or methyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.20 alkyl or substituted alkyl, and R.sub.4 is C.sub.1 -C.sub.6 alkylene or substituted alkylene, which are reaction products of an epoxy resin having a plurality of terminal groups of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are as defined, with an amino sulfonate of the formula:R.sub.3 --NH--R.sub.4 --SO.sub.3 Mwherein R.sub.3 and R.sub.4 are as defined, and M is a cation.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: April 12, 1983
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Shin-Ichi Ishikura, Kazunori Kanda, Ryuzo Mizuguchi
  • Patent number: 4370671
    Abstract: A semiconductor device comprises a semiconductor wafer arranged between metallic connecting members for supplying electric current to, and leading it from, the wafer, each connecting member having a substantially cylindrical external part. A ring of a sulphone polymer or of polyphenylene sulphide, which may be reinforced with glass fibre material, has portions of its internal peripheral surface surrounding and firmly engaged with the cylindrical parts of the connecting members, the ring and the connecting members forming a protective casing around the semiconductor wafer.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: January 25, 1983
    Assignee: Asea Aktiebolag
    Inventors: Gunno Eriksson, Anders Nilarp
  • Patent number: 4367299
    Abstract: The process according to the invention is performed by reaction of epoxide resins with primary and/or secondary polyamines with simultaneous quaternizing by means of aromatic and aliphatic polysulfonic esters, halogen-free organic phosphoric esters, or organic compounds which contain at least 1 chlorine or bromine atom, and which are free from -COOH groups and corresponding salt groups. The crosslinked plastics thus obtained are distinguished by an improved electrical conductivity.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: January 4, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Alfred Renner, Theobald Haug
  • Patent number: 4363898
    Abstract: Perfluoroglycidyl ethers of the formula ##STR1## are prepared by epoxidation of a perfluorodiallyl ether of the formula:CF.sub.2 .dbd.CFCF.sub.2 OR.sub.F.The glycidyl ethers are useful as monomers for preparing polymers which provide crosslinking or cure sites and are stable elastomeric materials useful as sealants, caulks, and fabricated objects.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: December 14, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carl G. Krespan, Thomas R. Darling
  • Patent number: 4361696
    Abstract: An oxidated silicon compound will react with a substituted organic compound in the presence of an alkali compound to produce organic alkali metal silicate products which may be used as molding powders, as adhesives, as coating agents and be reacted with polyisocyanates to produce insulating foams.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: November 30, 1982
    Inventor: David H Blount
  • Patent number: 4360645
    Abstract: Perfluoroglycidyl ethers of the formula: ##STR1## are prepared by epoxidation of a perfluoroallyl ether of the formula:CF.sub.2 .dbd.CFCF.sub.2 OR.sub.F.The glycidyl ethers are useful as monomers for preparing polymers which are useful as stable oils and greases. Polymers containing functional moieties which provide crosslinking or cure sites are stable elastomeric materials useful as sealants, caulks, and fabricated objects.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: November 23, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carl G. Krespan, Alicia P. King
  • Patent number: 4331582
    Abstract: A catalyst for forming ambient temperature stable diamino-diphenyl sulfone-epoxy composition comprises the half-salt of a strong aromatic sulfonic acid such as toluene sulfonic acid and an imidazole, preferably an alkylated imidazole such as 2-ethyl-4-methylimidazole. The composition fully cures at moderate temperature to form a humidity resistant resin having a high heat distortion temperature and can be impregnated onto reinforcing fibers such as graphite to form composites.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: May 25, 1982
    Assignee: Hitco
    Inventor: Eduard P. Babayan
  • Patent number: 4330671
    Abstract: Copolymers of an aziridine and sulfur dioxide are disclosed which are useful as positive radiation resists for use in electron beam and x-ray lithography.
    Type: Grant
    Filed: November 14, 1980
    Date of Patent: May 18, 1982
    Assignee: RCA Corporation
    Inventor: Thomas R. Pampalone
  • Patent number: 4301274
    Abstract: Aromatic sulfide/sulfone polymers are prepared by initially contacting a dihaloaromatic sulfone, an alkali metal sulfide, an organic amide, and, optionally, an alkali metal carboxylate under polymerization conditions and subsequently at or near completion of the polymerization reaction, adding an end-capping agent comprising additional dihaloaromatic sulfone to the reaction mixture producing a polymer exhibiting improved physical properties including melt flow stability. The resulting polymers have utility as coatings, films, molded objects, filaments, fibers, and the like.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: November 17, 1981
    Assignee: Phillips Petroleum Company
    Inventor: Robert W. Campbell
  • Patent number: 4299951
    Abstract: The tensile strength of shaped articles made from arylene sulfide/sulfone polymers is increased by treating the article with an organic liquid at an elevated temperature. In one embodiment, the organic liquid comprises at least one of selected hydrocarbons, alcohols, and esters.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: November 10, 1981
    Assignee: Phillips Petroleum Co.
    Inventor: Robert W. Campbell
  • Patent number: 4299943
    Abstract: A process for producing layered organometallic polymers having organo groups covalently bonded to pentavalent metal atoms. The pentavalent metal atoms are, in turn, covalently bonded through an oxygen linkage to tetravalent metal atoms. The layered organometallic compounds are produced by reacting a silyl diester of an organo-substituted pentavalent metal acid with at least one tetravalent metal ion.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: November 10, 1981
    Assignee: Occidental Research Corporation
    Inventors: Peter M. DiGiacomo, Martin B. Dines
  • Patent number: 4298723
    Abstract: Inorganic compounds which contain pendant organic functional groups are prepared by the reaction of an acid of the formula [(HO).sub.2 OZO.sub.x ].sub.k R, in which Z is a pentavalent metal, X is 0 or 1, k is 1 or 2, and R is an acyclic organo group, with a tetravalent metal ion. The compounds are insoluble in the reaction medium, exist in a layered crystalline to amorphous form, and have the formula M(O.sub.3 ZO.sub.x R).sub.n, in which M is the tetravalent metal and n is 1 or 2. One use for the compounds is as selective sorbents.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: November 3, 1981
    Assignee: Occidental Research Corporation
    Inventors: Peter M. DiGiacomo, Martin B. Dines
  • Patent number: 4297320
    Abstract: This invention relates to a polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto an aqueous coating composition containing the reaction product of a thiodiphenol, or a derivative thereof, with a bleaching agent or material, such as, for example, sodium hypochlorite (NaOCl). When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH.sub.2 .dbd.C< group, and mixtures thereof, polymer buildup on the inner surfaces of the reaction vessel is substantially reduced. Multiple charges or batches of polymer can be made in said internally coated reaction vessel without opening the same between charges thus preventing the escape of unreacted monomer(s) to the surrounding atmosphere.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: October 27, 1981
    Assignee: The B. F. Goodrich Company
    Inventor: Louis Cohen
  • Patent number: 4271285
    Abstract: A linear aryl sulfide/sulfonate polymer having improved thermal stability is provided consisting essentially of units of the formula: ##STR1## wherein n is an integer of from 3 to about 250.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: June 2, 1981
    Assignee: Koppers Company, Inc.
    Inventor: Hans Dressler
  • Patent number: 4269759
    Abstract: The present invention is directed to (1) an epoxy compound identified as 3,3'-tetraglycidylsulfonyldianiline (referred to herein as 3,3'-TGDDS); (2) a thermosetting composition comprising 3,3'-TGDDS and a curing agent; (3) a thermosetting composition having improved resistance to moisture and to a reduction in the glass transition temperature at elevated temperatures when cured comprising (a) the above epoxy compound, i.e., 3,3'-TGDDS, (b) a polybutadiene rubber or mixture thereof, (c) an epoxy curing agent such as 4,4'-diaminodiphenylsulfone, (d) a free radical initiator and esterification catalyst for the polybutadiene rubber; and (4) a carbon fiber/rubber modified epoxy composite prepared from the thermosetting composition of (3).The 3,3'-TGDDS when melted and admixed with the polybutadiene rubber in a solventless system forms a homogeneous mixture which is stable for extended periods.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: May 26, 1981
    Assignee: Celanese Corporation
    Inventor: Robert Edelman
  • Patent number: 4235991
    Abstract: Sulfo-organophosphonic acid compounds react by a metathesis reaction in a liquid medium with tetravalent metal ions, yielding layered crystalline to amorphous inorganic polymers having the empirical formula M(O.sub.3 PRSO.sub.3 H).sub.2 where M is a tetravalent metal and R is an organic group covalently bonded to phosphorus and the terminal sulfonic acid group. One use for the compounds is as ion exchangers.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: November 25, 1980
    Assignee: Occidental Research Corporation
    Inventors: Peter M. DiGiacomo, Martin B. Dines
  • Patent number: 4232142
    Abstract: Aromatic polymers containing benzenoid groups and oxygen atoms in the polymer chains are made by the action of an alkali metal hydroxide on a dihalogenobenzenoid compound in which each halogen atom is activated by an inert electron-attracting group such as --SO.sub.2 --.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: November 4, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventors: Dennis A. Barr, John B. Rose
  • Patent number: 4229564
    Abstract: The molecular weight of highly aromatic polymers made by the Friedel-Crafts polymerization of EN monomers of the formula Ar--L--Ar.sup.1 --X, wherein X is selected from SO.sub.2 Y or COY, Y being a radical selected from --OH, halogen, or alkyl, wherein Ar and Ar.sup.1 are independently ##STR1## wherein L is --CO--, --SO.sub.2 --, phenyleneoxy, --NHCO--, a covalent bond, --O--, or --CR.sub.2 --, wherein each R is independently hydrogen, an alkyl or fluoroalkyl group, phenyl or a phenyl group substituted by an electron withdrawing group such as halogen, NO.sub.2 or --CN, is controlled by including in the reaction mixture an acylatable aromatic compound whose rate of acylation under Friedel-Crafts conditions is at least about 150 times that of benzene. The molecular weight of other polymers made from EN type monomers by Friedel-Crafts catalysis can also be controlled in this way.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: October 21, 1980
    Assignee: Raychem Corporation
    Inventor: Klaus J. Dahl
  • Patent number: 4229560
    Abstract: A thermostable heterocyclic polymer constituted by monomer units of the general formula ##STR1## where R.sup.1 and R.sup.2 denote an organic radical having from 2 to 1000 carbon atoms;a radical having 2 to 1000 carbon atoms, containing:1 to 1000 atoms of Si,and/or 1 to 1000 atoms of F,and/or 1 to 1000 atoms of Cl,and/or 1 to 1000 atoms of Br,and/or 1 to 1000 atoms of N,and/or 1 to 1000 atoms of S,and/or 1 to 1000 atoms of P,and/or 1 to 1000 atoms of B,and/or 1 to 1000 atoms of O,R.sup.1 and R.sup.2 being either the same or different;R.sup.3 .dbd.NH, CH.sub.2 ;R.sup.4 is a radical which, with R.sup.3 .dbd.NH, may be ##STR2## while with R.sup.3 .dbd.CH.sub.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: October 21, 1980
    Inventors: Alexei Y. Chernikhov, Mikhail N. Yakovlev, Valentina B. Lysova, Evgeny L. Gefter, Nina N. Shmagina
  • Patent number: 4226972
    Abstract: Poly(organophosphazenes) containing repeating units of the structure: ##STR1## wherein X and X' represent organic substituents which may be the same or different and n is from 20 to 50,000, are prepared by a process which involves reacting a poly(dichlorophosphazene) having the formula --(NPCl.sub.2).sub.n --, in which n is from 20 to 50,000, with an active hydrogen-containing compound in the presence of a bicyclic amidine represented by the structure: ##STR2## in which m is an integer of from 1 to 10. A unique aspect of the process of the invention is that it can be utilized to prepare such poly(organophosphazenes) utilizing either soluble or gelled (insoluble) poly(dichlorophosphazenes) as starting materials.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: October 7, 1980
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Donald N. Schulz, Jung W. Kang, John W. Spiewak
  • Patent number: 4210500
    Abstract: A composition is described which provides an improvement in the electrodeposition of zinc from aqueous alkaline plating baths containing cyanide ions. The new composition comprises the reaction product obtained by the process of reacting(a) a polyhydroxyethylated polyamine having a carbon to nitrogen weight ratio of about 2.8:1 to about 3.3:1 and a nitrogen to oxygen weight ratio of about 1:1 to about 2:1, and(b) a 3-halo-2-hydroxypropane sulfonate.Aqueous, alkaline cyanide zinc electroplating baths containing the additive compositions of the invention deposit a bright zinc coating over a wide range of current densities.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: July 1, 1980
    Assignee: Rohco, Inc.
    Inventor: Craig V. Bishop
  • Patent number: 4195132
    Abstract: The present invention relates to novel, substantially insoluble and infusible plastics which are cross-linked by way of triazine rings and, optionally, by way of tri-substituted bis-oxymethylene urea groups or urethane groups.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: March 25, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Sundermann, Gunther Rottloff, Ernst Grigat
  • Patent number: 4189562
    Abstract: The instant invention is directed to polyhydroxyl compounds containing at least two hydroxyl groups and at least one sulfonic acid ester group and having an average molecular weight of from 300 to 12,000, wherein at least one hydroxyl containing compound contains a urethane aryl sulfonic acid hydroxyalkyl ester group. The invention also relates to a process for producing these compounds and the product by the process.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: February 19, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventor: Dieter Dieterich
  • Patent number: 4182837
    Abstract: Polyphosphazene copolymers are prepared which contain units represented by the formulas: ##STR1## wherein X is a sulfone radical selected from the group consisting of --CR.sub.1 R.sub.2 --SO.sub.2 --R and ##STR2## in which R is alkyl containing from 1 to 12 carbon atoms, cycloalkyl containing from 3 to 12 carbon atoms or aryl and R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, alkyl radicals containing from 1 to 11 carbon atoms, cycloalkyl radicals containing from 3 to 11 carbon atoms and aryl radicals; wherein X' is an organic radical selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The copolymers of the invention can be utilized to form films and may also be utilized in applications for moldings, coatings and the like.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: January 8, 1980
    Assignee: The Firestone Tire & Rubber Company
    Inventors: William L. Hergenrother, Adel F. Halasa
  • Patent number: 4180653
    Abstract: Novel polymers, useful as films or filaments, are prepared as by the reaction of a bispiperazide with a reactive derivative of an acid.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: December 25, 1979
    Assignee: s.a. Texaco Belgium n.v.
    Inventor: Johny C. Hermans
  • Patent number: 4175179
    Abstract: Novel polymers, useful as films or filaments, are prepared as by the reaction of a bispiperazide with a reactive derivative of an acid.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: November 20, 1979
    Assignee: s.a. Texaco Belgium n.v.
    Inventor: Johny C. Hermans
  • Patent number: 4172935
    Abstract: Novel polymers, useful as films or filaments, are prepared as by the reaction of a bispiperazide with a reactive derivative of an acid.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: October 30, 1979
    Assignee: S.A Texaco Belgium n.v.
    Inventor: Johny C. Hermans
  • Patent number: 4166894
    Abstract: Novel functional ionene polymer compositions useful in a wide variety of applications, including, among others, as wet and dry strength additives, corrosion inhibitors, and electroconductive coatings.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: September 4, 1979
    Assignee: Calgon Corporation
    Inventor: Raymond J. Schaper
  • Patent number: 4127713
    Abstract: Aromatic sulfide/sulfone polymers of increased molecular weight are produced by contacting at least one dihalo aromatic sulfone, at least one alkali metal sulfide, at least one organic amide, at least one sodium carboxylate, and a sufficient amount of water to produce higher molecular weight polymers than are normally produced. The resulting polymers have utility as coatings, films, molded objects, filaments, fibers, and the like.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 28, 1978
    Assignee: Phillips Petroleum Company
    Inventor: Robert W. Campbell
  • Patent number: 4116946
    Abstract: Hardenable mixtures ofA. 40 to 90% by weight of at least one aromatic polyfunctional cyanic acid ester,B. 10 to 60% by weight of at least one polymerizable olefinically unsaturated monomer and, optionally,C. 0.01 to 10% by weight, based on the sum of A) and B) of at least one hardening catalyst such as amines, Mannich bases and organic metal compounds. They are suitable for use as casting resins and as pourable sealing compounds for covering materials, for producing shaped articles, coatings, bonds, electrical insulations, as binders for fibre-reinforced plastics.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: September 26, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Dieter Jakob, Rolf Kubens, Heinrich Heine
  • Patent number: 4098768
    Abstract: Novel polymers, useful as films or filaments, are prepared as by the reaction of a bispiperazidophosphosphorus compound with a reactive derivative of an acid.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: July 4, 1978
    Assignee: S.A. Texaco Belgium n.v.
    Inventor: Johny C. Hermans