baber/WOPTO huggingface dataset:
Patent JP-H10197720-A (JP)
Title: Material for color filter red, color filters and color liquid crystal display device
Inventor: ISHIDAKA YOSHIHIKO
IPC: G02B5/22
Filed: 1997-01-07
Abstract: PROBLEM TO BE SOLVED: To obtain a material for color filter red which is high in polarized light transmittance and saturation, has excellent heat resistance and allows the formation of patterns without using an org. solvent by incorporating specific repeating units therein. SOLUTION: The material for color filter red having the repeating units expressed by formula I is used. In the formula I, A denotes any of formula II, etc.; B denotes any formula III, etc.,; Z denotes any of formula IV, etc.; (m), (n) are m:n=10:90 to 90:10 and denote the integers which may be expressed by m+n=50 to 1000. In the formula II, X1 denotes -(CF3 )2 or =0. In the formula III, X2 denotes -OH, -COOH or -CH2 COOH. In the formula IV, (Y) denotes -NO2 or -Cl. Then, the high polarized light transmittance and saturation and the excellent heat resistance are obtd. In addition, the pattern formation without using the org. solvent is possible. There is no need for freshly installing the waste water treatment equipment for the org. solvent, the equipment for handling the org. solvent, etc., and the need for the running cost of the equipment described above is eliminated.
Patent JP-S62217999-A (JP)
Title: Washed article drying tool
Inventor: BARUTAA SHIYUTAINAA
IPC: D06F57/02
Filed: 1987-01-06
Abstract: 1. Drying frame (1) having an upright pole (2) and a plurality of arms (3) which can be spread outwards and between which there run individual sections (7') of a washing line (7), having a supporting ring (4) which surrounds the pole (2), is mounted so as to be displaceable along the latter and on which are secured at one end in articulated fashion the spreadable arms (3), and having ties (8) which are each associated with one of the arms (3) and are swivellably connected at one end, via an articulation, to the associated arm (3) and at the other end to a head part (10) of the pole (2), it being possible, by displacement of the supporting ring (4) along the pole (2), to spread the arms (3) outwards or, by displacement of the supporting ring (4) in the opposite direction along the pole, to draw the arms (3) in into a rest position in which they rest against the pole (2), and means being provided with the aid of which at least partially closed hollow spaces (14) for receiving the drooping washing-line sections (7') are formed between the arms (3) are in the drawn-in rest position, and at least some of the line sections (7') furthermore being provided with at least one weight (18) for the purpose of guiding the line sections (7') into the hollow spaces (14), said line sections hanging loose during the folding up of the arms (3).
Patent JP-H02180768-A (JP)
Title: Hammer member for crusher
Inventor: KONDO AKIRA
IPC: C04B35/81
Filed: 1989-01-06
Abstract: PURPOSE:To form a lightweight hammer member for a crusher having high hardness, strength, toughness and wear resistance in a well-balanced state and satisfying a practical level by sintering a mixture of TiC forming a matrix with SiC whiskers and Cr3C2 and/or B. CONSTITUTION:This hammer member for a crusher is made of a sintered body obtd. by sintering a mixture of TiC forming a matrix with 5-40vol.% SiC whiskers as a reinforcing material and Cr3C2 and/or B as a sintering aid.
Patent LT-IP338-A (LT)
Title: Composition for stabilizing blood plasma during pasteurisation and pasteurized plasma solution for therapeutic use
Inventor: BURNOUF MIRYANA NEE RADOSEVICH
IPC: A01N1/02
Filed: 1993-02-12
Abstract: The invention relates to a composition intended to stabilise blood plasma during pasteurisation, the blood plasma being whole or devoid of cryoproteins. The composition according to the invention makes it possible to pasteurise very large quantities of plasma (of the order of 60 litres). The invention also relates to the method for pasteurisation of the plasma using the stabilising composition. The pasteurised plasma obtained is intended for therapeutic use.
Patent OA-09426-A (OA)
Inventor: BERNARD BOTANNET
IPC: C07C309/14
Filed: 1989-08-18
Abstract: The invention relates to an N-sulfomethylglycinate of formula: HO3S-CH2-NH-CH2-COOR1(I) COOR1 being a hydrolysable carboxylic ester group. It also relates to a process for the preparation of the compound of formula (I) consisting in putting in contact sulfur dioxide, formaldehyde, and glycine in the presence of a R1OH alcohol, or glycinate. It also relates to the use of the compound of formula (I) for the preparation of herbicides of the glyphosate type of reaction with a phosphite or a phosphonate of formula (R2O)2 P(O) H in which (R2O)2 P is a hydrolysable phosphonic ester group, then optionally by a subsequent hydrolysis reaction.
Patent PH-21438-A (PH)
Title: Acridanone derivatives
Inventor: HERMANN BRETSCHNEIDER PROF DR
IPC: C07D219/10
Filed: 1983-11-25
Abstract: Acridanone derivatives of the formula    <IMAGE>  I  wherein the dotted line is an optional bond, R1 is hydrogen, halogen or nitro, R2 is hydrogen or lower alkyl, one of the substituents R3 and R4 is hydrogen or lower alkyl and the other together with R is an additional bond and R5 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl or lower alkyl substituted by halogen or lower alkoxy, and pharmaceutically acceptable acid addition salts thereof, processes for their preparation and pharmaceutical compositions based thereon, are described. The compounds of formula I are useful as schistosomicidal agents.
Patent PH-27565-A (PH)
Title: Fused 2,3-dihydropyrazines there preparation and use
Inventor: JACOBSEN POUL
IPC: A61K31/41
Filed: 1989-06-28
Abstract: Heterocyclic dihydroxyquinoxaline compounds having the formula <CHEM> wherein R<1> and R<2> independently are hydrogen, NO2, NH2, CN, halogen, SO2NH2;  -X-Y-Z- is selected from -N=N-NR<3>-,-NR<3>-N=N-,=N-NR<3>-N=,-S-CH=N-,-N=CH-S-,-CH=C(CO2R<3>)-S -,-S-C(CO2 R<3> )= CH -, =N-Se-N=, -N=CR<3>-NR<3> -,-NR<3>-CR<3>=N-,=N-O-N=, -N=CR<3>-CR<3> =N-,-NH-CR<3>=CR<3>-CR<3>=N-,-N=CR<3>-CR<3>=CR<3>-NH,=N-S-N=;  wherein R<3> is hydrogen, lower alkyl, CF3. The invention also relates to a method of preparing the compounds, pharmaceutical compositions thereof, and their use. The compounds are useful in the treatment of indications caused by hyperactivity of the excitatory neurotransmitters.
Patent PH-30940-A (PH)
Title: Amino-substituted benzoylguanidines, process for their preparation, their use as a medicament and medicament containing them.
Inventor: HEINRICH ENGLERT
IPC: A61K31/445
Filed: 1993-02-12
Abstract: There are described benzoylguanidines of the formula I <IMAGE> in which R(1) or R(2) is an amino group -NR(3)R(4), where R(3) and R(4) are equal to H, (cyclo)alkyl or R(3) is equal to phenyl-(CH2)p- where p = 0, 1, 2, 3 or 4, or phenyl, or R(3) and R(4) together can also be a methylene chain, and in which the other substituent R(1) or R(2) in each case is H, F, Cl, alkyl, alkoxy, CF3, CmF2m+1-CH2-, benzyl or phenoxy, and their pharmaceutically tolerable salts. The compounds according to the invention have very good antiarrhythmic properties, such as they show, for example, in the case of oxygen deficiency symptoms. The compounds are used as antiarrhythmic medicaments having a cardioprotective component for infarct prophylaxis and infarct treatment and also for the treatment of angina pectoris, where they preventively inhibit or strongly decrease the pathophysiological processes during the formation of ischaemically induced damage, in particular during the induction of ischaemically induced cardiac arrhythmias.
Patent PH-31349-A (PH)
Title: Wall system.
Inventor: CHING-LIANG KUO
IPC: E04B2/84
Filed: 1995-02-27
Abstract: A wall system includes one or more wall members (2), and a number of retaining devices (11) fixed to columns or posts and engaged with the wall members (2) for retaining the wall member (2) in place. The wall member (2) includes a number of beams (21) each having a hollow interior, and a number of intermediate ribs (211) formed between the beams (21) so as to solidly couple the beams (21) together. An outer layer can be formed on the outer peripheral portion of the wall member (2) and engaged with the openings (23) of the intermediate ribs (211) so as to form a smooth outer appearance. <IMAGE>
Patent TR-27007-A (TR)
IPC: D04B1/14
Filed: 1993-07-06
Abstract: The textile support for a fusible interlining according to the invention consists of a weft fabric or weft knit, at least the weft of which is made from synthetic threads of high bulk, obtained by the air-jet texturing technique from at least two multifilament threads, namely a first core thread at 20 to 40 % by weight and a second fancy thread at 60 to 80 % by weight, the overfeed of the core thread being between 10 and 25 % and the overfeed of the fancy thread being at least 70 %. <IMAGE>
Patent TR-27644-A (TR)
IPC: C11D3/20
Filed: 1993-10-13
Abstract: A liquid premix for use in a detergent composition which comprises at least 40% by weight of polyhydroxy fatty acid amide of the formula: <CHEM> where R is C5-C31 hydrocarbyl, preferably straight-chain C7-C19 alkyl or alkenyl, R1 is C1-C4 hydrocarbyl and Z is polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 2 hydroxyls directly connected to the chain, and an effective amount of borate derived from any suitable borate functional material which prevents crystallisation and/or precipitation of said liquid premix when stored for at least 2 weeks at 20 DEG C.
Patent UY-33635-A (UY)
Title: ?imidazoles fungicidas?.
Inventor: TAGGI ANDREW EDMUND
IPC: A01N43/50
Filed: 2011-09-29
Abstract: La presente invención describe compuestos de la Fórmula 1 que incluyen todos los estereoisómeros, N-óxidos y sales de éstos,en donde Q1, Q2, R1, R2, R3 y R4 son como se definieron en ladescripción.  Se describen, además, las composiciones que contienen los compuestos de la Fórmula 1 y los métodos para controlar lasenfermedades de las plantas causadas por un patógeno fúngico; el método comprende aplicar una cantidad eficaz de un compuesto o una composición de la invención.
Patent UY-38308-A (UY)
Title: Forma de dosificación farmacéutica administrable por vía oral con liberación modificada
Inventor: DR PETER SERNO
IPC: C07C233/55
Filed: 2019-07-19
Abstract: La presente invención se refiere a formas de dosificación farmacéutica de liberación modificada que pueden administrarse por vía oral que contienen ciclopropilpropanoato de sodio-(3S)-3-(4-cloro-3-{[(2S,3R)-2-(4-clorofenil)-4,4,4,4-trifluoro-3-metilbutanoil]amino}fenil)-3 así como procesos para la preparación de las formas de dosificación y su uso para el tratamiento y/o prevención de enfermedades, en particular para el tratamiento y/o la prevención de enfermedades cardíacas, renales, pulmonares y oftalmológicas, enfermedades del sistema nervioso central, enfermedades fibróticas e inflamatorias y enfermedades metabólicas.
Patent YU-45689-A (YU)
Title: Cevno ložište sa cirkulacijom vode za peći, štednjake, šporete na čvrsta goriva
Inventor: DRAGOLJUB MITIC A
Filed: 1989-03-03
Abstract: CEVNO LOŽIŠTE SA CIRKULACIJOM VODE ZA PEĆI, ŠTEDNJAKE, ŠPORETE NA ČVRSTA GORIVA. Glavne karakteristike cevnog ložišta sa cirkulacijom vode za peći, štednjake, šporete na čvrsta goriva su njegovi cevni delovi: levi rezervoar (1), desni rezervoar (2), zadnja premosnica (3), prednja premosnica (4), cevne rešetke (5), dovodna cev vode (6) i odvodna cev vode (7), kroz koje voda u proticanju se zagreva do ključanja, i čine ložište i rekuperator u celini za uključenje grejanja vodom, dok kod montirajućeg masivnog ložišta za isključenje grejanja vodom su njegovi masivni delovi: leva bočna ploča (11), desna bočna ploča (12), čeona ploča (13) i klasična rešetka (8), kroz koje voda ne može proticati. Pronalazak se odnosi na oblast tehnike ložišta kroz koja cirkuliše voda za toplovodno grejanje, a i koja su masivna te isključuju toplovodno grejanje vodom, tako da je samim ložištima rešeno uključenje-isključenje grejanja vodom upotrebom peći, štednjake, šporete na čvrsta goriva za toplovodno grejanje.
Patent YU-60190-A (YU)
Title: Mehanički zidar
Inventor: MARKO DJURAGIN
Filed: 1990-03-28
Abstract: Mehanički zidar, prema ovom pronalasku ima za novost to, što su u uredjaju (1) na podnim nosačima-papučama (2) vertikalno postavljeni stubovi (3) sa profilisanim šinama (4), po kojima se pomeraju koturače (5), koje nose metalno kućište (6). Za njega je odozdo pričvršćena granična vodilica (7) zidanja, uz koju se oslanja i radja unutrašnji red zigala. Sve granične vodilice (7) su medjusobno horizontalno spojene u celinu rama, koji odredjuje konturu unutrašnje strane zidova koji se zidaju istovremeno. Ram se diže čeličnim užadima (10) okačenim o kuke (11), koje su podesivim zavrtnjima (12) učvršćene za kućišta (6). Užad (10) su preko horizontalnih nosača-odstojnika (9) i preko obrtnog cilindra (14), učvršćena na metalni nosač (16) na vrhu centralnog stuba (13) kroz otvore (18) trouglaste ploče (17). Kroz otvor (21) donjeg temena ploče (17) je učvršćeno čelično uže (19) povezano sa motor reduktorom (20), čijim se okretanjem uže (19) namotava, a ram graničnih vodilica (7) istovremeno podigne za jedan red cigala naviše, da bi se ozidao sledeći red.
Patent YU-93991-A (YU)
Title: Modularni reklamni pano sa rotirajućim segmentima
Inventor: ZELIMIR STEFANOVIC
Filed: 1991-05-27
Abstract: MODULARNI REKLAMNI PANO SA ROTIRAJUĆIM SEGMENTIMA, ima za novost da se pomoću modulnih jedinica mogu formirati znatno veće dužine panoa od dužine jedne modulne jedinice a da istovremeno debljina panoa ostaje ista, zahvaljujući spojnicama (14). Ovim načinom omogućen je znatno jednostavniji transport reklamnog panoa. Ugradjenim malteškim krstom (13) kao i kinematskim lancem (10) i (11) se povećava mogućnost izbora konstrukcionih rešenja u smislu gradnje većih ili manjih panoa kao i prilagodjavanje različitim tehnologijama izrade.
Patent YU-97292-A (YU)
Title: N-fenilalanil i n-fenilglicil derivati dipeptida l-azetidin-2-karboksilne kiseline
Inventor: SHUMAN R T
IPC: A61K31/397
Filed: 1992-11-11
Abstract: N-FENILALANIL I N-FENILGLICIL DERIVATI DIPEPTIDA L-AZETIDIN-2-KARBOKSILNE KISELINE, opisani su N-fenilalanil i N-fenilglicil derivati dipeptida L-azetidin-2-karboksilne kiseline formule u kojoj je A 1) grupa formule gde je R fenil grupa formule u kojoj su a i a' nezavisno vodonik, nizi alkil, nizi alkoksi, halogen, trifluorometil, hidroksi; hidroksimetil, amino, ili aminometil; a n je 0 ili 1; ili R je tienil, furil, naftil, ili naftil mono- ili disupstituisani nizim alkilom, nizim alkoksi, halogenom, amino, mono- ili di-(nizi alkil)amino, ili hidroksi; ili R je cikloheksandienil, cikloheksenil, cikloheksil ili ciklopentil; R1 je vodonik, metil ili etil; B je nizi alkil, nizi alkoksi, hidroksi, ili amino grupa formule -N(R2) (R3) gde su R2 i R3 nezavisno vodonik ili nizi alkil, ili R2 je vodoik, a R3 je C1-C6 alkanoil, halo supstituisani C2-C6 alkanoil, ili oksikarbonil grupa formule R4-OC(O)-gdeje R4 C1-C6 alkil, C2-C6 alkenil, C3-C7 cikloalkil, benzil, nitrobenzil, difenilmetil, ili fenil grupa kao sto je napred definisano; pod uslovom da, kada je R1 metil ili etil, B je drugaciji od metala ili etila; 2) biciklicna grupa formule 2 u kojoj je Q radikal sa jednim ugljenikovim atomom predstavljen sa , -CH2-, ili ili radikal sa dva ugljenikova atoma predstavljen sa -CH2-CH2-, , ili ; Y je radikal sa jednim ugljenikovim atomom predstalvjen sa -CH2- ili , ili radikal sa dva ugljenikova atoma predstavljen sa ; pod uslovom da je jedno, ali ne i oba Q i Y ili ; i dalje pod uslovom daje samo jedno Q i Y radikal sa dva ugljenikova atoma; R5 je vodonik ili oksikarbonil grupa, R4-OC(O)-, kao sto je napred definisano; a R6 je vodonik, nizi alkil, nizi alkoksi, halogen, hidroksi, trifluorometil, karboksi, karbamoil, ili aminosulfonil; a tackaste linije u okviru 6-clanog prstena oznacavaju aromaticni prsten ili perhidro prsten; i njihove farmaceutski prihvatljive, ne-toksicne soli, kao i postupak za njihovo dobijanje.
Patent AT-A184893-A (AT)
Inventor: GRILL ROBERT
IPC: G21B1/17
Filed: 1993-09-14
Abstract: PCT No. PCT/EP94/03013 Sec. 371 Date Jun. 12, 1995 Sec. 102(e) Date Jun. 12, 1995 PCT Filed Sep. 8, 1994 PCT Pub. No. WO95/07869 PCT Pub. Date Mar. 23, 1995A heavily thermally stressable component comprising a graphite and a metal part, e.g., copper or a copper alloy, soldered together. Between the solder and the metal part there is an intermediate layer comprising chromium or an alloy containing a substantial proportion of chromium with copper and/or nickel additives. This special intermediate layer provides a good bond between the graphite and the metal which remains stable even under the heaviest cyclic thermal stresses.
Patent AT-A256493-A (AT)
IPC: B30B7/00
Filed: 1993-12-17
Abstract: The invention relates to an arrangement for forming strip-shaped material with at least one adjustable tool-carrying module (13, 14), which can be actuated by means of a drive (5). According to the invention, at least two modules (13, 14) are provided, each carrying at least two independently usable tools (30) and/or at least one processing unit (113), which modules (13, 14) can be adjusted in the longitudinal and/or transverse direction relative to the feed direction (12) of the material (3) to be processed, directly from one working position into another, specified working position, via a driving device (27, 96) between the individual working strokes, and that each module (13, 14) has an activating unit, moved along with it and carried by it, for each tool carried by the respective module (13, 14) and/or each processing unit (113) carried. <IMAGE>
Patent BE-806819-A (BE)
Title: Continuous deodoriser for liquids - treats discrete batches to ensure that no unprocessed liquid is delivered
Inventor: ATHANASSIADIS A
IPC: C11B3/14
Filed: 1973-10-31
Abstract: Deodourising vessel has a single inlt which carris the liquid to be trated, usually oil, into a treatment column into which stam is injctd to driv off fums to b carrid off to a vacuum xhaust. Th column is surroundd by seval, sparat compartments which ar filld in turn with partly dodourisd oil transfrrd from th column, all compartments hav indpndntly controlled outlets leding to a common discharge lin. Typically, ach of six batch compartments is mptid and rfilld from th column abov vry two hours, i.. on compartment in turn vry 20 mins.
Patent BE-900129-A (BE)
Title: Support de toit a utiliser dans les mines.
IPC: E21D23/00
Filed: 1984-07-11
Abstract: Il s'agit d'un support de toit à utiliser dans les mines, dans lequel un chapeau (13) comprend une partie principale (14) et une partie de prolongement (15) reliées à pivotement. Un élément en coin (32) actionnable par des moyens (21) est disposé entre la partie (14) et la partie de prolongement (15). L'élément en coin exécute un mouvement arqué sous l'action des moyens (21), qui réalise l'inclinaison de la partie de prolongement par rapport à la partie principale.
Patent BE-901848-A (BE)
Title: Method of joining sections of a large volume plastic prod. - partic. a float in order to reduce mould size and cost
IPC: B29C65/56
Filed: 1985-02-28
Abstract: A method of joining together plastic sections of a large volume prod. which have been centrifugally moulded, blow-moulded or thermoformed. By assembling the prod. from component mouldings, the overall length of the mould and its cost can be reduced. Transportation of the prod. is simplified by assembly on site.
Patent BE-902259-A (BE)
Title: Nouveaux derives d'apovincaminol, procede pour leur preparation et compositions pharmaceutiques les contenant.
IPC: A61K31/475
Filed: 1985-04-23
Abstract: Dérivés de l'apovincaminol de formule (I) dans laquelle R1 est un atome d'hydrogène, d'halogène ou un groupe nitro, R2 est un groupe alcoyle ou phenyl, éventuellement substitué, R3 et R4 forment ensemble une liaison de valence et R5 est un groupe alcanoyl ou benzoyl. Ainsi qu'un procédé pour leur préparation. Les médicaments contenant ces dérivés peuvent etre utilisés dans le traitement de divers maladies cutanées.
Patent BE-770980-A (BE)
Title: Photoelectric tracer - designed for alternate use as line or edge tracer for heat welding, cutting etc
IPC: B23Q35/128
Filed: 1971-08-05
Abstract: Photoelectric tracing apparatus for tracing lines and edges in thermal treatment such as welding or cutting comprising a bridge circuit with four arms, having first and second resistances in the first and second arms and first and second photoelectric elements in the third and fourth arms, with a switching element for bringing the second photoelectric element from the fourth arm to the third arm and vice versa, and a sensing head comprising the first and second photoelectric element.
Patent BE-775070-A (BE)
Title: Meat preservative - contg carbohydrates, vitamins sodium citrate, biotine and mineral salts
IPC: A23L13/40
Filed: 1971-11-08
Abstract: Additive for meat products contains purified carbohydrates, vitamins, sodium citrate, biotine and mineral salts in biologically suitable proportions. Used for the preservation of meat products in a similar manner to brine. Growth of undesired microorganisms is prevented, and the meat products develops a desired colour and flavour, as growth of desirable microorganisms is facilitated. Specif., the carbohydrate is dextrose, maltose, maltotriose, or maltotetraose. The additive may also contain sodium ascorbate.
Patent CA-1037038-A (CA)
Title: Procede d'obtention de nouvelles urees tricycliques
Inventor: VINCENT MICHEL
IPC: A61K31/54
Filed: 1973-11-02
Granted: 1978-08-22
Abstract: La présente demande se rapporte à l'obtention de nouvelles urées tricycliques répondant à la formule générale I: I dans laquelle le substituant A représente un radical bivalent choisi dans le groupe constitue par -CH2-CH2-, -CH=CH-et -S-; R et R1 représentent, distinctement l'un de l'autre, de l'hydrogène, un halogène, un alcoxy inférieur, un alcoylthio inférieur, un radical trifluorométhoxy ou trifluorométhyle; R2 représente de l'hydrogène. un radical alcoyle inférieur, un radical alcenyle inférieur ou un radical phényl alcoyle inférieur; R3 représente un radical alcoyle inférieur, alcenyle inférieur, alcynyle inférieur ou phényl alcoyle inférieur; ou bien R2 et R3 forment avec l'atome d'azote adjacent un hétérocycle azote ayant de 3 â 7 chainons et pouvant inclure un autre hétéroatome; R4 représente un hydrogène ou un radical alcoyle inférieur.  Les nouveaux composés sont employés comme medicament cardio-vasculaire.
Patent CA-1063839-A (CA)
Inventor: BLACHFORD JOHN
IPC: B22F1/00
Filed: 1974-07-31
Granted: 1979-10-09
Abstract: ABSTRACT OF THE DISCLOSURE           Discrete pressure-rupturable microcapsules for lubrication in powder metallurgy are disclosed comprising a core and a solid shell surrounding said core; the core comprises an organic liquid lubricant able to wet powdered metals, the shell comprises a thin non-atmospherically degradable polymeric material; the microcapsules may be used as the sole lubricant in the manufacture of sintered metal parts or may be used in admixture with other solid lubricants to produce beneficial synergistic effects.
Patent CA-1038889-A (CA)
Inventor: PARTHASARATHY R
IPC: B01J29/22
Filed: 1974-08-06
Granted: 1978-09-19
Abstract: Abstract of the Disclosure An improved hydro-isomerization catalyst composed of platinum and/or palladium distended as very small crystallites on a hydrogen form mordenite base is disclosed.  The catalyst is prepared by distending the noble metal on the base by addition of small quantities of cerium nitrate in admixture with the noble metal followed by controlled calcination to achieve an almost monatomic dispersion of the noble metal on the base. The catalyst thus prepared is used to isomerize normal paraffins in the C4 to C7 range in the presence of hydrogen at elevated temperature and pressure.