baber/WOPTO huggingface dataset:
Patent CZ-14496-A3 (CZ)
Title: Omnidirectional vehicle with the drive direction control without turning wheels
Inventor: OSMERA PAVEL DOC ING CSC
IPC: B62D61/06
Filed: 1996-01-17
Abstract: The vehicle has wheels (1), which have on their periphery segments (5) consisting of two freely rotating barrel-like truncated cones (3) oriented by smaller bases toward each other, whereby between them there is located a freely rotating barrel-like roller (4) when their axes of rotation (8, 9) include with tangent to the wheel periphery such an angle that the contour of the barrel-like rollers and the barrel-like truncated cones forms a wheel. Segment (5) axes (10) of the wheel (1) are perpendicular to the axis (6) of rotation. The segments (5) are attached to a wheel hub (2) by means of beams (11) which are situated between greater bases of the barrel-like truncated cones (3) and on which there are barrel-like truncated cone (3) pins (16)). Radius of the barrel-like fillet of the truncated cones (3) and rollers (4) equals to the radius of the wheel (1) periphery. In a three-wheel vehicle the adjacent wheel axes (6) include an angle of 120 degrees and the wheels (1) lie on apexes of e
Patent CZ-37394-A3 (CZ)
Title: Means for transfer of objects
Inventor: LANGR JAROSLAV
IPC: B65G7/00
Filed: 1994-02-21
Abstract: This tool consists of a pair of belts (1,2); the upper side of the shorter upper belt (1) is rough and is in contact with the relocated item and the second side (5) is smooth sliding on the smooth upper side (6) of the second lower belt (4), the lower side (4) of the belt (2) is rough and is in contact with the plate. The belts (1,2) are of plastic based on modified epoxide resins with inorganic fillings. Each of the belts (1,2) is created from two fixed joined layers of material and one of them is in contact with the plate and the second has a smooth sliding surface.<IMAGE>
Patent CZ-37897-A3 (CZ)
Title: Steel for producing forgings and process of producing such forgings
Inventor: BELLUS JACQUES
IPC: C22C38/04
Filed: 1997-02-07
Abstract: Steel for forging comprises by weight 0.1-0.4% carbon, 1-1.8% manganese, 0.15-1.7% silicon and up to 1% nickel, 1.2% chromium, 0.3% molybdenum, 0.3% vanadium and 0.35% copper. Optional ingredients are 0.005-0.06% aluminium, 0.0005-0.01% boron, 0.005-0.03% titanium, 0.005-0.06% niobium, 0.005-0.1% sulphur and up to 0.006% calcium,, 0.03% tellurium, 0.05% selenium, 0.05% bismuth and 0.1% lead, the remainder being iron and impurities. Also claimed is hot-forging a component from an ingot of the steel followed by heat treatment to produce a structure comprising at least 15% bainite and at least 20% ferrite perlite.
Patent CZ-52998-A3 (CZ)
Title: Process of treating loose waste and apparatus for making the same
Inventor: STACH JOSEF ING
IPC: B09B3/00
Filed: 1998-02-24
Abstract: Loose waste with grains smaller than 0.2 mm in an amount of 5 to 85 percent by weight is mixed with sorted and crushed thermoplastic waste. The obtained mixture is heated under perpetual successive and rotary motion to a temperature of 210 to 320 degC, whereupon it is additionally agitated for a period exceeding 90 seconds at a temperature ranging from 250 to 320 degC. Apparatus for making the above-described process comprises an extruder (1) having a movable worm (3) into a heated cylinder (2) followed by an additional agitator (8) body (13) with a heated cylindrical space. Inside, there are two parallel rotary shaped shafts (21) for transporting and agitating a mixture. A storage tank (20) of a plasticized mixture is connected via a distributor (9) channels (10) to said additional agitator (8( outlet (7).
Patent SK-18698-A3 (SK)
Title: Absorbent article having improved waist region dryness and method of manufacture
Inventor: LE MAHIEU LYNN K
IPC: A61F13/49
Filed: 1996-07-31
Abstract: An absorbent article includes a generally reduced length absorbent assembly positioned between a moisture barrier and a bodyside liner. The moisture barrier and the bodyside liner extend beyond the absorbent assembly and define at least one waist region with a length dimension greater than about 10 centimeters. A moisture control layer is present in from about 25 to 100 percent of the area of the first waist region. The moisture control layer is configured to accommodate liquid that may be present in the waist region as a result of condensation or perspiration and also limit the transport of liquid from the absorbent assembly into the waist region. <IMAGE>
Patent SK-29997-A3 (SK)
Inventor: BUNDA VOJTECH
IPC: E02D19/16
Filed: 1997-03-06
Abstract: Tesniaca
vrstva
odkaliska,
skládky
odpadu
alebo
svahu
sa
vytvára
tak,
že
stabilizát
s
prevládajúcim
obsahom
elektrárenského
popolčeka
a
sadrovca
alebo
nehasené
­
ho
vápna
sa
na
miesto
určenia
nanáša
tlakovým
vzdu
­
chom
za
prítomnosti
rozrábacej
vody.
Nanášanie
stabi-
lizátu
pozostáva
z
fúkania
suchého
stabilizátu
a
jeho
následného
vlhčenia.
V
dôsledku
vlhčenia
rozrábacou
vodou
sa
proces
fúkania
mení
na
striekanie.
Patent SK-64898-A3 (SK)
Title: Hydrogenation catalysts, method for producing them and their use
Inventor: MALENTACCHI MARINELLA
IPC: C07B61/00
Filed: 1998-05-15
Abstract: Hydrogenation catalysts comprising metallic palladium supported on activated carbon, wherein less than 50% by weight of the palladium is comprised within a surface layer with a depth of up to 50 microns, the remainder being comprised in a layer between 50 and 400 microns deep. The catalysts can be used in particular in purifying terephthalic acid obtained by oxidation of p-xylene. They are prepared by dry impregnation of the support.
Patent SK-76993-A3 (SK)
Title: Phenylimidazolidine derivatives, process for their preparation and their use
Inventor: ZOLLER GERHARD
IPC: A61K38/04
Filed: 1993-07-21
Abstract: Novel phenylimidazolidine derivatives of general formula (I) , wherein the substituents have the meaning stated in the descrip tion, their production method, pharmaceutical preparation contain ing them, particularly as an inhibitor of thrombocyte aggregation .
Patent SK-97898-A3 (SK)
Inventor: CHUDOBA JAN
IPC: B23D17/02
Filed: 1998-07-16
Abstract: Opísané zariadenie je charakterizované tým, že otáčavý
pohyb vretena (2), na ktorom je v pevnom držiaku
(6), čapom (7) výkyvné prichytený anuloid (5), ktorý je
pomocou jadra vretena (10) a vychyľovacieho čapu
(9) vychyľovaný o uhol „a“, núti kladky (16) odvaľujúce
sa po povrchu vychýleného anuloidu (5) pohybovať
suport (13) o výšku zdvihu „Z“ tak, že spodný úvrat
amplitúdy je stále na úrovni prichytenia anuloidu (5)
v držiaku (6) a horný úvrat amplitúdy je v momentálnej
vzdialenosti „Z“ od dolného úvratu amplitúdy zdvihu, a
že v suporte (13) prichytený suport nástroja (17), ktorý
je pritláčaný k dolnému úvratu pružinami (20), vedenými
na vodiacich čapoch (18) a stlačenie ktorých je
možné meniť počas chodu zariadenia skrutkami zmeny
nastavenia sily príklepu (19), ktorých nekruhová vodiaca
časť je iba posuvne, nie otočné, uložená v priamočiarom
vedení (22) upevnenom v závitovkovom kolese
(21), ktoré je cez závitovku (23) spojené s pohonom
zmeny nastavenia sily príklepu.
Patent CH-639816G-A3 (CH)
IPC: H02P8/02
Filed: 1980-05-05
Abstract: An electronic timepiece has a stepping motor comprised of a stator, rotor and coil, and circuitry for producing and applying driving pulses to the coil to effect stepwise rotation of the rotor. The presence of an external alternating magnetic field is detected by switching the coil from an open-circuit condition to a low impedance loop comprised of the coil and a low impedance element. The rotation of the rotor is detected by alternately switching the coil between the low impedance loop and a high impedance loop comprised of the coil and a high impedance element. Control circuitry controls the switching operations to ensure that the magnetic field detection and the rotor rotation detection are carried out at different times.
Patent CS-154891-A3 (CS)
Title: Pyridylpiperimidine derivatives, process for their manufacture and their application as fungicides
Inventor: WORTHINGTON PAUL ANTHONY
IPC: C07D213/81
Filed: 1991-05-23
Abstract: Fungicidal compounds having the formula (I): <CHEM> wherein R<1> is an optionally substituted phenyl group; R<2> and R<3>, which are the same or different, are hydrogen or C1-4 alkyl; R<4>, R<5> and R<6>, which are the same or different, are hydrogen, C1-4 haloalkyl, C1-4 alkyl or C1-4 alkoxy; R<7>, R<8> and R<9>, which are same or different, are hydrogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy or halogen, or R<7> and R<8> together form a polymethylene group of the formula -(CH2)m- in which m is 3 or 4; and, acid addition salts or metal complexes thereof; are useful as fungicides. The invention also relates to processes for preparing them, to fungicidal compositions containing them, and to methods of using them to combat fungi, especiallyl fungal infections in plants.
Patent CZ-244492-A3 (CZ)
Inventor: STEINHAGE PETER DR
IPC: H01H9/02
Filed: 1992-08-06
Abstract: Dálkově ovladatelný spínač pro elektrické proudové obvody,
které obsahají nejméně jednu krabicovou odbočnici (2)
pro uložení proudových přípojek, přičemž kryt (11) spínače
určený pro uspořádání na straně víka krabicové odbočnice
(2), je spojitelný s obvyklou spodní částí (3) krabicové
odbočnice (2) v jednu konstrukčníjednotku. Vynález slouží
tudíž nákladové zejména výhodné instalaci dálkově ovládatelného
spínače na místě vhodném dálkové ovládání.
Patent CZ-368089-A3 (CZ)
Title: hydraulic device with oscillating motion of output shaft
Inventor: VACEK BEDRICH
IPC: F04C9/00
Filed: 1989-06-19
Abstract: A hydraulic device with oscillating motion of output shaft on the principle of a vane drive. Fitted in the body (7), with input neck (5) and output neck (6), joined together by an expansion valve (21), is a stator (11) with rotor (9), equipped with turning vane (13), separating the working space of the stator (11) into two spaces (B,C) with alternate function of pressure and exhaust space. A segment (18) with two stops (19) is firmly positioned on the end of the rotor (9), whereas the other end of the rotor (9) traverses in the output shaft. Fitted on the bearing needles (14) in the rotor (9) is a rotary valve (10), fixed on whose end is a sprung lever (15) with damping ring (16), whose end is  modified in the shape of a double-sided wedge, whereas the stator (11) is equipped with radial input hole (D), connected with the input neck (5) and opening into the pressure space (A), delimited by the gates (8) of the rotor (9) and interconnected further by a radial hole (E) in the rotor (9) into mutually interconnected symmetrical radial recesses (F), formed on the perimeter of the rotary valve (10) and alternately interconnected by channels (M,G) in the rotor (9) with the first or second space (B,C) of the stator (11). On the periphery of the rotary valve (10) there are two symmetrical axial recesses (H), joined through which is always one of the spaces (B,C) of the stator (11) by gaps between the bearing needles (14) with the exhaust space (L) and further with the output neck (6), whilst formed on the front face of the rotor (9) are flow channels (I,N), uncovering in the dead points the flow hole (J) of square cross-section in the face (12) of the stator (11), linked to which is the flow channel (K), ending with a nozzle (20), going through whose axis is the plane of the swing of the lever (15).<IMAGE>
Patent CZ-105698-A3 (CZ)
Title: Apparatus for making cross seams on bag producing machine
Inventor: STIRNKORB WILLI
IPC: B65B51/10
Filed: 1996-09-19
Abstract: A transverse sealer (11) on a bag forming and filling machine has two sealing jaws (31, 32) with flat sealing surfaces (33, 34) arranged in a space (16) between two pairs of clamping jaws (12, 13; 14, 15) and a blade (35) to divide the transverse seam produced by the sealing jaws (31, 32) longitudinally. To shield the blade (35) from the heat of the sealing jaws (31, 32), it is arranged separately from said jaws (31, 32) and can be moved in its inoperative position outside the area of movement of the sealing jaws (31, 32). To this end, there is an aperture (46) in one of the clamping jaws (14) to accept the blade (35) in its inoperative position, through which an arm (36) supporting the blade (35) also projects.
Patent CZ-157899-A3 (CZ)
Title: Wall for paint shop booth
Inventor: KIMMERLE WALTER
IPC: B05B16/40
Filed: 1998-07-20
Abstract: A wall for the booth of a coating plant is formed in the conventional manner by a sectional frame (3) composed of at least two vertical, hollow posts (4, 5) and at least two horizontal, hollow crosspieces (6, 7, 8, 9). At least one zone (10, 11, 12) which is bounded by two posts (4, 5) and two crosspieces (6, 7, 8, 9) is covered by a plate (34, 35). The corresponding plate (34, 35) is secured over the associated zone (10, 11, 12) of the frame (3) with the aid of "local" blocking devices (15 to 27) separated from one another spatially. Each of these blocking devices (15 to 27) comprises at least one retaining portion (31b, 31c) which can be inserted in a corresponding locating opening (28a, 28b, 29a, 29b) in the associated post (4, 5) or crosspiece (6, 7, 8, 9) such that a contact portion (31a) of the blocking device (15 to 27) lies against the outside of the associated post (4, 5) or crosspiece (6, 7, 8, 9). The plates (34, 35) are supported "locally" at these contact portions (31a) and are held in place in the lateral direction by a sectional frame (38) secured in a removable manner to the corresponding post (4, 5) or crosspiece (6, 7, 8, 9).
Patent CZ-190394-A3 (CZ)
Title: Method of removing moisture from gases and a cartridge for making the same
Inventor: HAMM REINER DR
IPC: B01D53/04
Filed: 1994-08-05
Abstract: The removal of moisture from gases is carried out by adsorption to a composition which comprises an active metallic component, preferably chromium, on a heat-resistant oxidic support. The absorption of moisture is connected with a colour change of the composition which can be used as an indicator when a transparent adsorption cartridge is employed.
Patent CZ-200271-A3 (CZ)
Title: Aqueous pharmaceutical preparation
Inventor: GAO RONG
IPC: A61K9/10
Filed: 2000-07-12
Abstract: The invention relates to the formulation of oral liquid products of quinolones or derivatives thereof using ion exchange resins, such as methacrylic acid polymer crosslinked with divinylbenzene, as the carrier, thereby eliminating the extreme bitterness of the quinolones oral liquid formulation.
Patent CZ-208194-A3 (CZ)
Title: Screw plug
Inventor: ZIMA JOSEF ING
IPC: B65D41/08
Filed: 1994-08-29
Abstract: This plastic device for closing the threaded neck (2) of an overpressure vessel is equipped on the inside part of the bottom (5) with a protuberance (4) in the form of ring in whose cross-section the crossing line of the surface of the inside block (7) and the surface of the outside of the block (6) forms the top (12) of the raised part (4) which is located, when closing the screw plug (1), on the surface forming the face (9) of the threaded neck (2) of the overpressure vessel or on the surface forming the inner passage (13) specified by the face (9) and the inner cylindrical part (14) of the threaded neck (2) of the overpressure vessel and when the corner contraction (8) on the inner part of the bottom (5) of the screwed plug (1) is tightly in contact with the surface consisting of the passage (10) of the face (9) in the outer cylindrical part (11) of the threaded neck (2) of the overpressure vessel.<IMAGE>
Patent CZ-9902157-A3 (CZ)
Inventor: RUBES LADISLAV
IPC: F42B7/00
Filed: 1999-06-16
Abstract: Náboj pro brokové zbraně RL je vytvořen s vnějším tvarem
pláště (1) a kování (2) pro brokové automatické zbraně
užívající rovný schránkový zásobník nebo nábojovou
schránku. Při kompletaci náboje je do pláště (1) zasunut
kontejner (3) s broky nebo jednotnou střelou, ucpávka (4) a
toulec (5). Toulec (5) vymezí prostor pro prachovou náplň.
Náboj je uzavřen kováním (2), konkrétně vytvořením drážky
pro vytahovaě. Do této sestavy je provedeno plnění prachovou
náplní otvorem pro zápalku (6). Kompletace bude dokončena
zallsováním zápalky (6).
Patent CZ-238297-A3 (CZ)
Title: Novel coumarin quinolone carboxylic acids and process for preparing thereof
Inventor: TRKOVNIK MLADEN
IPC: C07D491/052
Filed: 1997-07-25
Abstract: The present invention relates to novel coumarin quinolone carboxylic acids wherein the pyridone system is fused in 3,4-, 6,7- and 7,8-positions of the coumarin system, of the general formula I <CHEM>  wherein   R<1>R<2> = -NHCH=C(CO2R<6>)CO-, R<3> = NO2 or NH2, R<4> = R<5> = H, R<6> = H or C2H5; R<1>R<2> = -NHCH=C(CO2R<6>)CO-, R<3> = R<4> = H, R<5> = F, R<6> = H or C2H5; R<1>R<2> = -CO(CO2R<6>)C=CHNH-, R<3> = R<4> = R<5> = H, R<6> = H or C2H5; R<1>R<2> = R<3>R<4> = -NHCH=C(CO2R<6>)CO-, R<5> = H, R<6> = H or C2H5; R<1> = H or OH, R<2> = R<5> = H, R<3>R<4> = -NHCH=C(CO2R<6>)CO-, R<6> = H or C2H5; R<1> = OH, R<2> = R<3> = H, R<4>R<5> =-CO(CO2R<6>)C=CHNH-, R<6> = H or C2H5; R<1> = R<5> = H, R<2> = CH3 or CF3, R<3>R<4> = -CO(CO2R<6>)C=CHNH-, R<6> = H or C2H5,  as well as pharmaceutically acceptable salts thereof. The object of the invention are also processes for the preparation of novel coumarin quinolone carboxylic acids and the biological action thereof.
Patent CZ-265893-A3 (CZ)
Inventor: RESETKA MIROSLAV PHDR
IPC: B42C19/04
Filed: 1993-12-07
Abstract: Způsob přípravy a zpracování knižních bloků s použitím víceprodukcí
spočívá v tom, že při vyřazení a montáži
jednotlivých stran textu se postupuje tak, že v levé části
bloku je číslování stran řadou vzestupnou a v pravé části
bloku je číslování stran řadou sestupnou, přičemž v polovině,
kde se stránkově vzestupná i sestupná řada číselně setkávají,
se tyto části proti sobě otočí, spojí a dosáhne se celé
číselné řady. Knižní blok se před vazbou kompletuje tak, že
ze dvou základních částí se v místě číselné návaznosti obou
částí pouhým zrcadlovým spojením vytvoří kompletní knižní
blok. Knižní blok se před vazbou kompletuje tak, že ze
dvou základních částí, k jedné z nichž se připojí nejméně
1/4 archu navíc, se v místě číselné návaznosti obou částí
pouhým zrcadlovým spojením vytvoří kompletní knižní
blok.
Patent CZ-287195-A3 (CZ)
Title: Filtering material and method of removing ozone from gases and liquids
Inventor: STRUTZ HEINZ
IPC: B01J20/26
Filed: 1994-04-13
Abstract: A filter material based on a polyarylene thioether having repeating units of the formula -[(Ar1)n-X)]m-[(Ar2)i-Y)]j-[(Ar3)k-Z)]l-[(Ar4)o-W)]p-(I) in which Ar1, Ar2, Ar3, Ar4, W, X, Y and Z, independently of each other, are identical or different, the indices n, m, i, j, k, l, o and p, independently of each other, are zero or integers 1, 2, 3 or 4, their sum being at least 2, Ar1, Ar2, Ar3 and Ar4 are arylene systems having 6 to 18 carbon atoms, and W, X, Y and Z are divalent linking groups, selected from -SO2-, -S-, -SO-, -CO-, -O-, -CO2-, or alkylene groups or alkylidene groups having 1 to 6 carbon atoms is suitable for removing ozone from gases or liquids. The removal proceeds quantitatively, no volatile products being formed.
Patent CZ-359099-A3 (CZ)
Title: Process and apparatus for checking sequence of containers transported one after another on a straight conveyor belt
Inventor: GAST TERRY L
IPC: B65G47/244
Filed: 1999-10-11
Abstract: Apparatus for inspecting containers (22) traveling in sequence on a linear conveyor (24) that includes an infeed mechanism having a first endless drive belt (30) with a portion (38) overlying the conveyor for abutting engagement by containers in sequence traveling on the conveyor, and a first motor (32) driving the belt at a speed greater than the speed of the conveyor for diverting containers laterally at least partially off the conveyor. An abutment assembly (66 or 144) is disposed in opposition to the first belt for abutting engagement by containers diverted by the infeed mechanism, such that containers diverted from the conveyor and engaged between the first belt and the abutment assembly are rotated during longitudinal travel along the abutment assembly. Apparatus (210, 212) inspects the containers as they are rotated during travel along the abutment assembly. An outfeed mechanism (120) is disposed adjacent to the abutment assembly for engaging containers in sequence following engagement with the abutment assembly, and for diverting the containers back onto the conveyor. <IMAGE>
Patent CZ-398499-A3 (CZ)
Inventor: SATO KOH
IPC: A61P7/06
Filed: 1998-05-13
Abstract: Toto řešení se týká léčiva pro kachexii, obsahujícíjako aktivní
složku látku, schopnou inhibice vazby mezi parathormonu
příbuznýmproteinem(PTHrP) ajeho receptorem.
Patent CZ-9904771-A3 (CZ)
Inventor: DOWNS STUART G
IPC: G05B23/00
Filed: 1999-12-29
Abstract: Ovládací systém (10) volantu, který používá způsob pro /
předávání příkazů od tlačítek na volantu do systému vozidla,
přičemž tento způsob není závislý na přechodovém odporu
kluzného kontaktu (32) umístěného ve sloupku řízení.
Ovládací systém (10) obsahuje obvod (20) zdroje
konstantního proudu, který generuje unikátní konstantní proud
odpovídající každému příkazu. Kluzný kontakt (32) předává
konstantní proud mezi volantem a systémem vozidla a
kalibrovaný odporový obvod (40) mění unikátní konstantní
proud na diskrétní napětí. Diskrétní napětíje dále měněno na
číslicový signál pro použití mikrořadičem (60) pro aktivaci
systémů vozidla. Použití konstantních proudů odstraňuje
provozní problémy spojené se snížením celkové šumové
rezervy v důsledku velkých napěťových úbytků na kluzném
kontaktu (32).
Patent ES-8502182-A3 (ES)
Title: Centrifuging system for textile materials
IPC: D06B15/10
Filed: 1983-12-20
Abstract: The system is for centrifuging loads of varying weight in a single operation. It involves a mechanism to facilitate extraction of the cake of treated material from the autoclave, and means for charging the spin drier or hydro-extractor. These consist of a basket with removable top portion and base suspended on chains from a bracket which allows the cakes of textile material to be positioned in the chamber of the centrifuge.
Patent ES-8802057-A3 (ES)
Title: Ribofuranosyl triazole carboxamide prepn.
IPC: C07H19/056
Filed: 1986-10-31
Abstract: 1-(beta-D-Ribofuranosyl) 1,2,4-triazole 3-carboxamide, for use as an antitumour agent, is made by (a) recting suitable molar amounts of the methyl ester of 1-(2,3,5-tri-O-R -D-ribofuranosyl) 1,2,4-triazole 3-carboxylic acid, in which R is benzoyl or acetyl, with anhydrous ammonia in methanol at 0 deg.C; (b) maintaining in a closed vessel for 72 hours at 25 deg.C; (c) evaporating in a rotary evaporator under reduced pressure at 35 deg.C; and (d) crystallising from ethanol.
Patent SK-121694-A3 (SK)
Title: Agent for increasing of productivity in animal production
Inventor: TURJANICA IVAN M
IPC: A23K1/16
Filed: 1994-10-07
Abstract: A composition is characterized by contents of iodine and designed to increase productivity of animal production. It contains as an effective ingredient at least one iodinated free or bonded unsaturated fatty acid of general formula (I), wherein: x is of the value 0 to 14, y is of the value 0 to 13, z is of the value 0 to 5 and z1 is of the value 1 to 6.
Patent SK-132995-A3 (SK)
Title: Process for preparation of substituted aromatic amines
Inventor: STERN MICHAEL K
IPC: C07C245/06
Filed: 1994-03-18
Abstract: A process for preparing (un)substituted 4-aminodiphenylamines, optionally N-alkylated derivatives thereof, is disclosed, which process comprises contacting a nucleophilic compound and an azo containing compound in the presence of a suitable solvent system, reacting the nucleophilic compound and the azo containing compound in the presence of a suitable base and a controlled amount of protic material at a temperature of about 10 DEG C to about 150 DEG C in a confined reaction zone wherein the molar ratio of protic material to base is 0 : 1 to about 5 : 1 and reducing the product of the reaction of the nucleophilic compound and the azo containing compound under conditions which produce the (un)substituted 4-aminodiphenylamines, optionally N-alkylated derivatives thereof.