baber/WOPTO huggingface dataset:
Patent WO-0102148-A1 (WO)
Title: Verfahren und vorrichtung zum herstellen von zumindest teilweise mit schaumstoff gefüllten hohlkörpern aus kunststoff
Inventor: MOITZHEIM JUERGEN
IPC: B29C44/14
Filed: 2000-06-17
Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen von Hohlkörpern aus Kunststoff, die zumindest teilweise mit Schaumstoff (54) gefüllt sind, wobei zunächst ein Vorformling (12) mit einer Blasform (22) durch inneren Überdruck zu dem Hohlkörper aufgeweitet wird, der dann mit Kunststoff-Beads aus geschäumtem Kunststoff zumindest teilweise ausgefüllt wird, und die Kunststoff-Beads innerhalb des Hohlkörpers eine Volumenvergrösserung erfahren. Dabei wird so vorgegangen, dass die komprimierten Kunststoff-Beads in den noch innerhalb der Blasform befindlichen aufgeweiteten Hohlkörper unter einem Druck, der grösser ist als der im Hohlkörper herrschende Druck, in diesen eingeführt werden und die im Hohlkörper befindlichen Kunststoff-Beads eine Druckentlastung erfahren, die zu einer Volumenvergrösserung der Kunststoff-Beads führt, die eine möglichst vollständige Ausfüllung wenigstens eines abgegrenzten Teilvolumens des Hohlkörpers mit einem Kunststoffschaum bewirkt.
Patent WO-0250453-A1 (WO)
Title: Vorrichtung zur umwandlung einer dreh- in eine axialbewegung
Inventor: BUTSCH MICHAEL
IPC: F16H25/22
Filed: 2001-07-18
Abstract: Eine Vorrichtung zur Umwandlung einer Dreh- in eine Axialbewegung mit angetriebenen Planetenrollen (10) und einem durch die Planetenrollen (10) axial verschiebbaren Schubkörper (5), bei der- die Planetenrollen (10) in einem angetriebenen Träger (9) axial fixiert, drehbar gelagert und mit Rillen (11) versehen sind,- die Planetenrollen (10) über die Rillen (11) in eine gewindeartige Rille des Schubkörpers (5) eingreifen,- im Zentrum des Trägers (9) ein in die Rillen (11) eingreifender Lagerkörper (7) vorgesehen ist,soll einfach aufgebaut und gleichzeitig absolut sicher schlupffrei ausgebildet sein.Zu diesem Zweck weist eine solche Vorrichtung folgende Merkmale auf- die Rillen (11 und 12) besitzen eine aufeinander abgestimmte Steigung,- die Planetenrollen (10) und der Lagerkörper (7) sind schlupffrei miteinander verzahnt,- der Träger (9) und der Lagerkörper (7) werden in einem Drehzahlverhältnis angetrieben, durch das Schlupffreiheit zwischen den Planetenrollen (10) und dem Schubkörper (5) garantiert ist.
Patent WO-02098110-A1 (WO)
Inventor: POLZER CHRISTIAN
IPC: H04L29/12
Filed: 2002-04-11
Abstract: La présente invention concerne un procédé de transmission de données orientée paquets entre un réseau source (21') et un réseau cible (22'). Selon ce procédé, une information d'adresse d'un paquet de données concernant une adresse valable dans le réseau source est transformée individuellement en une adresse valable dans le réseau cible, l'adresse IP et le numéro de port dans la tête du paquet de données sont transformés par un système de transformation d'adresse (30') en une adresse IP et en un numéro de port du réseau cible, puis le paquet de données est envoyé à l'adresse IP du réseau cible.
Patent WO-03028306-A1 (WO)
Title: Verfahren zur erzeugung einer statischen adresstabelle und datennetz
Inventor: BRUECKNER DIETER
IPC: H04L45/74
Filed: 2002-09-13
Abstract: Die Erfindung betrifft ein Datennetz (1) und ein Verfahren zur Erzeugung einer statischen Adresstabelle (5, 8) für eine Menge von Zieladressen mit folgenden Schritten: Abbildung jeder der Zieladressen auf eine Einsprungadresse der Adresstabelle (5, 8), falls eine Untermenge der Menge von Zieladressen auf dieselbe Einsprungadresse (7) abgebildet wird:a) Zuordnung der Einsprungadresse (7) zu einer der Zieladressen der Untermenge, b) Zuordnung der Einsprungadresse (7) mit einem Offset zu jeder der weiteren Zieladressen der Untermenge,c) Speicherung eines oder mehrerer Sendeports in der Adresstabelle (5, 8) für jede Zieladresse der Menge an einer durch die jeweilige Einsprungadresse (7) bzw. durch die jeweilige Einsprungadresse (7) mit einem oder mehreren Offsets gekennzeichneten Stellen zusammen mit der betreffenden Zieladresse.
Patent WO-03050474-A1 (WO)
Inventor: BREIDER DOMINIQUE
IPC: G01B11/24
Filed: 2002-11-28
Abstract: Die vorliegende Anmeldung betrifft eine Vorrichtung zur optischen Vermessung von Bohrungen (7) in Bauteilen (1), vorzugsweise von Einspritzbohrungen (7) in Kraftstoffeinspritzventilen, mit einer Lichtquelle (15) und einer optischen Messvorrichtung (20) zur optischen Erfassung der Geometrie der Bohrung (7), wobei die Lichtquelle (15) einen opalen Festkörper (10) beleuchtet, der auf der der optischen Messvorrichtung (20) gegenüberliegenden Seite der Bohrung (7) am Bauteil (1) anliegt. Bevorzugt wird der opale Festkörper (10) so ausgeführt, dass er an der Wandung der Zentralbohrung (3) und formschlüssig am konischen Ventilsitz (5) anliegt.
Patent WO-03053743-A1 (WO)
Title: Stereo-kamera-anordnung in einem kraftfahrzeug
Inventor: SEGER ULRICH
IPC: B60R11/04
Filed: 2002-12-04
Abstract: Die Erfindung betrifft eine Stereo-Kamera-Anordnung in Kraftfahrzeug, insbesondere zur Klassifizierung von Objekten und Abstandsbestimmung. Um eine sichere Aufnahme und genaue Positionierung des Kamera-Systems, insbesondere eine Fixierung seiner seitlichen Position zu gewährleisten, wird eine Kamera-Anordnung geschaffen mit mindestens zwei Kameramodulen (50), einer Halterung (40), in der Kamera-Module (50) mit einem vorgegebenen seitlichen Abstand zueinander aufgenommen sind, wobei die Halteeinrichtung (40) an einer Innenseite (11) einer Windschutzscheibe (10) festgeklebt ist.
Patent WO-03050091-A1 (WO)
Title: Deuterierte substituierte pyrazolyl-benzolsulfonamide sowie diese verbindungen enthaltende arzneimittel
Inventor: ALKEN RUDOLF-GIESBERT
IPC: A61K31/415
Filed: 2002-12-11
Abstract: Die Erfindung betrifft deuterierte substituierte Pyrazolyl-Benzolsulfonamide sowie diese Verbindungen enthaltende Arzneimittel sowie diese Verbindungen enthaltende Arzneimittel. Weiterhin betrifft die Erfindung die Verwendung deuterierter substituierter Pyrazolyl-Benzolsulfonamide zur symptomatischen Behandlung von Osteoarthritis und rheumatoider Arthritis sowie zur Verhinderung und Behandlung von Neoplasie insbesondere adenomatöser colorektaler Polypen bei familiärer adenomatöser Polyposis, zur Behandlung von Schmerzen, inbesondere akute Schmerzen, und Dysmenorrhoe, insbesondere primäre Dysmenorrhoe. Ausserdem offenbart die Erfindung pharmazeutische Zusammensetzungen, welche deuterierte substituierte Pyrazolyl-Benzolsulfonamide sowie deren physiologisch verträgliche Salze, neben pharmazeutisch verträglichen Hilfs- und/oder Zusatzstoffen, zur symptomatischen Behandlung von Osteoarthritis und rheumatoider Arthritis sowie zur Verhinderung und Behandlung von Neoplasie insbesondere adenomatöser colorektaler Polypen bei familiärer adenomatöser Polyposis, zur Behandlung von Schmerzen, inbesondere akute Schmerzen, und Dysmenorrhoe, insbesondere primäre Dysmenorrhoe, enthalten.
Patent DE-1801333-A1 (DE)
Title: Coatings for protecting metal-surface during heat
Inventor: CHARLES WARDELL ANTHONY
IPC: C03C4/00
Filed: 1968-10-04
Abstract: Coatings (I) for protecting metal-surfaces during heat-treatment comprise a ceramic frit, water, a suspending-agent (II) and a fireproof silicate (III). (I) are suitable for the surface protection of Ni, Co and their alloys, esp. stainless steel. At higher temps., eg. 800 deg.C. (I) starts to melt, forming a glaze which spreads over the surface and dissolves the oxide, preventing further oxidn. On cooling, the glazing scales off and an oxide-free metal surface results. For protecting metal surfaces from oxidn. after casting, avoiding the necessity of using a deoxidising agent treatment stage between the H.T. and following process.
Patent DE-1807546-A1 (DE)
Title: Blow-moulded plastic box with integral lid
Inventor: LAZZARI ENRICO
IPC: B65D43/16
Filed: 1968-11-07
Abstract: Plastic box with integral lid is produced by blow-moulding, the outer walls being cut over a part of their periphery to form the lid, while the remaining part is hollowed out or milled in order to form a hinge for the lid. the outer walls of the lid and box are provided with projections and corresponding grooves, which are capable of cooperating to form a closure for the box and lid. The box pref. has cavities in its base, and ridges in its upper side, the cavities and ridges being engageable to enable the boxes to be stacked. The lid may consist of one piece, or of two pieces. The box is pref. rectangular, the lid or each part of the lid being connected with the corresponding sidewall(s) by means of a hinge. The method enables plastic boxes with integral lids to be produced by blow-moulding. The method is cheaper than injection-moulding of boxes with lids.
Patent DE-1812002-A1 (DE)
Title: Hydantoin derivatives with phenolic - groups in the 1-and/or 3-positions
Inventor: WOLFHARD SCHMIDT DR
IPC: C07D233/72
Filed: 1968-11-30
Abstract: Cpds. of general formula (where R1 and R2 = H or opt. substd. straight or branched chain aliphatic or alicyclic grps. with not more than 20C in the main chain; or R1 and R2 may be bonded together by an additional bond. X and Y (same or diff.) = opt. substd. aryl grps. or opt. substd. bivalent aryl grps. or several aryl grps. bonded together via single or multiple bonds or by the groupings -CH2-, CHo, -O-, -S-, -SO2-, in which Y or a part thereof is a bivalent alkyl or cycloakly grp; Z = -H, -OH, -NO2, -CHO, -SH or may be prepd. by reacting N-hydroxyaryl substd. alpha-aminoacid nitriles or alpha-aminoacid esters with isocyanates under anhyd. conditions, pref. in chlorobenzene, benzene, or dioxan above room temp. The products are used in the preparation of polymers and phosphorus-contg. insecticides.
Patent DE-1910525-A1 (DE)
Title: Enzymatic detergent composition
Inventor: DIETER WALTER DIPL-CHEM DR
IPC: C11D3/386
Filed: 1969-03-01
Abstract: A detergent and cleansing agent containing Na5 (triphosphate) is produced by spraying a mixture at 32.4 degrees - 80 degrees C comprising an aqs. suspension containing 1-20 parts by wt. of an enzyme, 40-45 parts by wt. anhydrous. Na2SO4 and 55-60 parts by wt. water, and 50-150 parts by wt. of a predominantly anhydrous Na5(triphosphate), into a spray chamber in which temp. is less than 32.4 degrees C.
Patent DE-1922716-A1 (DE)
Title: Preparation of trichlorethylene with per- - chlorethylene
Inventor: ERNST FEDER DIPL-CHEM DR
IPC: C07C17/10
Filed: 1969-05-03
Abstract: A gaseous mixture of chlorine and 1,2-dichloroethane possibly with another chlorinated hydrocarbon, are reacted in given quantities in the presence of a rotating bed. A surface active fine grain material of total composition 55-80 wt. % SiO2, 8-25 wt.% Al2O3 and 8-20 wt.% C is fed into the reactor which is cleared out with oxygen or oxygen-containing gas, preferably air, after preparation of each batch of perchlorethylene, at 500-600 degrees C. The reaction is carried out between 350-550 degrees C, preferably 400-500 degrees C.
Patent DE-1940195-A1 (DE)
Title: Die-casting head for deforming plastic tubes - used as suck or blow-moulded to bottles
Inventor: WULSCHNER JOHANN
IPC: B29C48/09
Filed: 1969-08-07
Abstract: Head comprises a housing in which a concentric core is held by crosspieces. Between the core and the housing wall, a ring jacket divides the annular flow path of the plastic into two concentric, tubular paths. The crosspieces extend only through part of the ring jacket zone. In another zone opposite surfaces of the inner housing wall and the outer ring jacket and core surfaces are smooth and converge so that the flow path narrows.
Patent DE-1958479-A1 (DE)
Title: Non-leather shoe upper material
Inventor: SIEVERS KLAUS
IPC: A43B23/02
Filed: 1969-11-21
Abstract: The non-woven carrier layer is reinforced by stretch yarns running along the length of the shoe in the upper carrier zone, and this area contains a higher proportion of bonding agent than the rest of the carrier. The system provides additional stretch characteristics just under the outer leather-like layer. If necessary, reinforcing layers can be laminated to the underside of the carrier at stress points.
Patent DE-1966993-A1 (DE)
Title: Projectile
Inventor: GAWLICK HEINZ DR
IPC: F42B10/34
Filed: 1969-02-04
Abstract: Projectile has an axial space throughout and an ejecting cap to follow the outline in front of the actual projectile and clamped on to this making up the projectile to its original shape, in which the section before the empty space is followed by an area serving as a tube with narrower pref. variable cross-sections.
Patent DE-2001340-A1 (DE)
Title: Firing ceramic tiles
Inventor: I BERENSTEJN PEJSJA
IPC: C04B33/32
Filed: 1970-01-13
Abstract: Tiles have residual moisture content 0.5% and are heated, kept at max. temp., and cooled; heating to 500-700 degrees C., and cooling are at max. speeds determined by thermal stresses. During dehydration period at between 500-700 degrees C and 300 degrees C less than max. firing temp. firing proceeds with elimination of water of hydration at 2-40%/min.
Patent DE-2003398-A1 (DE)
Title: Converting textile waste material
Inventor: JOHN FAIRFIELD HUGH
IPC: B25G1/00
Filed: 1970-01-26
Abstract: A fibrous mass of waste fibres of polymerisation or polycondensation products is passed through pinch and draw wheels to induce an irregular stretch on the fibre content. The tension breaks the fibres into irregular lengths and on reassertion they form loops and hooks to interlock into a marketable product.
Patent DE-2025381-A1 (DE)
Title: Electrostatic resin coating of articles
IPC: B05B14/48
Filed: 1970-05-25
Abstract: Electrostatic coating of articles with synthetic resin powder is carried out by spraying the synthetic resin powder with a spray gun, and leading the powder in a continuous circular path. Electrostatic coating is carried out continuously and automatically with low space requirements, low apparatus cost, low energy consumption and small powder loss.
Patent DE-2048661-A1 (DE)
Title: Purification of bisphenol-a - by ion-exchange of its adduct with pheno
IPC: C07C37/82
Filed: 1970-10-03
Abstract: Crude bisphenol-A is purified by isolating a phenol-bisphenol-A adduct, melting it, and passing the fluid melt or solution through at least one ion-exchange column contg. an acid and/or weakly basic ion-exchange resin and pref. dissociating the product by distillation. The subsequent distillative purification of the bisphenol-A can be carried out without problems of resin formation.
Patent DE-2054483-A1 (DE)
Title: Protection of organic materials against harm - ful organisms using organotin tria zines
IPC: C07F7/22
Filed: 1970-11-05
Abstract: Organic materials with free hydroxyl groups and other functional groups are treated with a biocidal compound pref. using a polyfunctional compound to bind the biocide chemically to the treated material. The prefd. biocide agents have formula (I) (where n = 2 or 3; R1, R2 and R3 = aliphatic or aromatic groups) such as 6-(3'-diphenylbromotinpropoxy)-2,4-dichlorotriazine. Protection may be given by either coumpling the biocide to the polyfunctional compound and reacting the product with the organic material or by reacting all three products together. The organic materials treated may be wood, textiles, leather etc and may be painted after treatment.
Patent DE-2138330-A1 (DE)
Title: 5-Aminopyrazoles - with analgesic, antiinflammatory and muscle relaxant activity
Inventor: NAKANISHI MICHIO
IPC: C07D231/38
Filed: 1971-07-30
Abstract: Antiinflammatory, analgesic and spasmolytic agents of formula: are claimed with their acid addition salts. In formula, Y= =NH, =O or =NOH; R1= allyl, 1-3C alkyl; R2,R3=H, allyl, 1-3C alkyl, benzyl, ethoxycarbonyl or the gp. R5CO- where R5 is H, Me or Et; or R2 + R3 and the attached N-atom is pyrrolidino, piperidino, morpholino, 4-methyl-1-piperazinyl, 4-methyl-1-homopiperazinyl, 4-(2-hydroxy-ethyl)-1-piperazinyl; or R1 and R2 together form a -CH2CH2- gp; R4=H, Me, Et; X1,X2=H, halogen, Me, -PMe or CF3. Daily adult dose is 150-450 mg.
Patent DE-2157746-A1 (DE)
Title: Chipboard press - exerting uniform pressure on the whole board surface using endless roller chain assemblies
IPC: B27N3/24
Filed: 1971-11-22
Abstract: Chipboard press in which uniform pressure is exerted over the whole board surface includes a pair of endless presser belts between which is disposed the chipboard and the uniform pressure is exerted using for each endless presser belt a number of contiguous endless roller chains extending the whole width of the belts, each chain including a plurality of roller rows and the rollers in each row being staggered with respect to the preceding row.
Patent DE-2224181-A1 (DE)
Title: Pk fertilizer granulation - with improved throughput
Inventor: SINGEWALD ARNO DR ING
IPC: C05G1/04
Filed: 1972-05-18
Abstract: In a process for granulating PK fertilisers by continuously mixing Thomas phosphate and potassium fertiliser salt with water or salt solns. granulating in a screw granulator and a drum granulator, drying, sieving and recycling the undersize and comminuted oversize material, throughput and yield are improved by effecting one or more of the following modifications in the first stage (mixing of the Thomas phosphate, potassium salt and water or salt soln). (a) addn of phosphoric acid in an amt corresponding to the amt of CaO in the Thomas phosphate; (b) using soft earthy raw phosphate instead of at least part of the Thomas phosphate; (c) using calcined phosphate instead of at least part of the Thomas phosphate; (d) using MgSO4-contg. cpds. (pref. kieserite) instead of all or part of the potassium salt; and (e) adding N-contg. cpds. (pref. urea).
Patent DE-2229221-A1 (DE)
Title: Catalytic reactor - for carrying out conjugate chemical reactions
Inventor: GRJASNOW WLADIMIR MICHAJLOWITS
IPC: B01J12/00
Filed: 1972-06-15
Abstract: The reactor has an outer casing and a double-walled spiral partition made of material which is selectively permeable to a reactant common to conjugate reactions taking place in each of the two compartments is formed in the reactor by the incorporation of the partition; the material of the partition also exhibiting catalytic activity w.r.t. both reactions. The reactions may be dehydrogenation and hydrodealkylation, in which case the partition is of Pd alloy. Sealing is only required at the ends of the partition, and the ratio of the surface area of structural material to catalytic material is minimised.
Patent DE-2239564-A1 (DE)
Title: High speed break spinning turbine rotor - of carbon fibre reinforced plastics
Inventor: BRANDIS CURT DIPL ING
IPC: D01H4/10
Filed: 1972-08-11
Abstract: The turbine can have a reinforcing shell of parallel or cross laid C fibre. It may be made entirely of the reinforced plastic material except for the metal hub. IT has high speed capability e.g. 30-60,000 r.p.m. or more, without risk of fracture.
Patent DE-2247764-A1 (DE)
Title: Monohaloacetyl halides prodn - by halogenating ketenes in ester solvents, suppressing formation of polyhaloacetyl halides an
Inventor: GASH VIRGIL WALTER
IPC: C07C51/58
Filed: 1972-09-29
Abstract: Monohaloacyl halides (I) are prepd. by reacting a ketene with a halogen in presence of a solvent which is either (a) an alicyclic carbonate of formula:- where R and R1-6 are H, halogen, CH3, chloromethyl or C2H5 and n = 0 or 1, (b) an alkoxyalkyl ester of formula R6-O-R7-O-CO-R8 where R6 and R8 are not >5C alkyl and R7 is not >5C alkylene, with the proviso that the total number of C number in R6, R7 and R8 is 3-10, (c) an ester of formula R9-COO-R1 R9-COO-R10 where R9 is 2-7C alkyl and R10 is >4C alkyl, or (d) a glycol ester of formula:- R20-COO-(CR12R13)a-(CR14R15)b-CR16R17-CR18R19-OOC-R11 where R11 and R20 are >4C alkyl, R12-19 are H, CH3 or C2H5 with the proviso that is not >3 of these gps. are CH3 or C2H5, and a and b 0 or 1. Formation of polyhaloacyl halides is inhibited and prodn. of acyl halides is reduced to a minimum. (I) are inters. for herbicidal alpha-haloacetanilides and other prods.
Patent DE-2249980-A1 (DE)
Title: Zinc dialkyl dithiophosphates - of improved thermal stability prepd at 180-300of under autogenous pressure
Inventor: RIGDON ORVILLE WAYNE
IPC: C07F9/165
Filed: 1972-10-12
Abstract: Zinc dialkyl dithiophosphates are prepd. by (1) reacting a dialkyl dithiophosphoric acid and a basic Zn cpd in heptane at 180-300 degrees F (pref 210-240 degrees F) under autogenous pressure in a closed system, (2) adding water in an amt. of 0.75-1.5 molar based on Zn cpd. consumed, after 60-70% reaction has occurred and (3) removing the water present in the reaction product. The Zn cpd is pref. ZnO, Zn(OH)2 or ZnCO3 and it is pref. used in an amt. from stoichiometric up to 30% excess based on the acid. The water is pref. added two-thirds through the reaction in an amt. equimolar to that of Zn reactant consumed. The product Zn salt which serves as an anti-oxidant, corrosion inhibitor and anti-wear agent in lube oils has improved thermal stability and resistance to H2S evolution.
Patent DE-2308625-A1 (DE)
Title: Thermoplastic and thermosetting polymer cross-linking - using di-(2,4-dienoxy-symmetrical-triazine-6)-diamines as cross-linking co-agents
Inventor: KLEEBERG WOLFGANG DR
IPC: C08K5/3492
Filed: 1973-02-21
Abstract: in polymer cross-linking, used in concns. of 0.1-75 (0.1-20) wt. %/wt. polymer have formula (I): (where R is a 2-8C alkylene, 5-10C di-alkylene-cyclo-alkane or a poly-alkylene-substd. heterocycle, e.g. di-alkylene-furan, -thiophene, -pyridine or -triazine gp.; R1 is crotyl, methallyl, ethallyl, propallyl, 3-butenyl, 2-hezenyl, 2,4-hexadienyl-3-decenyl and esp. an allyl gp. and R2 is H or alkylene, forming a diazacycloaliphatic ring together with R). Pref. uses are opt. filler-contg. thermoplastics, esp. olefin homo- or co-polymers cross-linked by peroxides or energy-rich radiation, partic. opt. calcined kaolin-filled high press. polyethylene for cable-insulation; hardening thermosetting resins, esp. opt. fibre-reinforced unsatd. polyesters, esp. for extrudates, pre-pregs and laminates useful as electrical engineering components.
Patent DE-2310970-A1 (DE)
Title: Loose laid textile floor covering - has heavy filled plastics underside to hold down on floor
Inventor: HENDRIX HANS DR
IPC: D06N3/00
Filed: 1973-03-06
Abstract: A heavy coating for textile and similar flexible structures, espl intended for the underfacing of flexible but non-stick tiles or floor covering which are designed to remain in position without adhesive by their own wt. and low centre of gravity, is as follows: as plastics coating material, e.g., PVC, polyurethane, atactic polypropylene, polyethylene etc., is mixed with a filler of heavy specific gravity, esp. powdered Fe or Fe alloys of particle size 0.1-250 mu; the powdered/plastics wt. ratio is 20-95/80-5; the mixt. is applied as a paste, soln. hot melt, sheet, powder etc., onto the face of the textile and then gelled, sintered, age hardened, pressed or rolled to bonded to the textile.
Patent DE-2312281-A1 (DE)
Title: Olefin oxide prepn. from olefin and per aromatic acid - with regeneration of peracid with hydrogen peroxide
Inventor: EISENLOHR KARL HEINZ DR
IPC: C07D301/14
Filed: 1973-03-13
Abstract: 1 pt. aromatic acid (specifically claimed benzoic) is treated according to prior art in methane sulphonic acid with 1-3 pref. 1.5-2 pts. H2O2 to give per acid (specifically perbenzoic) which is reacted with olefin (specifically propylene) at 10-50 pref. 20-40 degrees C and 760-900 pref. 800-850 torr to give epoxide and acid. The acid is recovered and recycled with recovered methane sulphonic acid. The process gives no by prodts.
Patent DE-2323554-A1 (DE)
Title: N-substd cyclic diphenic acid hydrazides - prepd. by reacting diphenic acid derivs with hydrazines having pharmacological activity
Inventor: ROLDAN CRISTOBAL MARTINEZ DR M
IPC: C07D245/04
Filed: 1973-05-10
Abstract: Title cpds of formula (I)- (R=1-4C alkyl) are prepd by reacting a deriv of diphenic acid with an alkyl-hydrazine or a commercially available deriv. thereof, heating the reaction product in vacuo to cause ring closure then crystallising prod. from a suitable solvent.