baber/WOPTO huggingface dataset:
Patent IE-36663-L (IE)
Title: Cyclic ketones
IPC: C07C49/697
Filed: 1972-09-01
Abstract: 1394717 Antiandrogenic compositions ELI LILLY & CO 19 Sept 1972 [20 Sept 1971] 43375/72 Heading A5B [Also in Division C2] Pharmaceutical compositions having antiandrogenic activity comprise an antibiotic and/ or an inert diluent and, as an essential constituent, an androgen-inhibiting proportion of a cyclic ketone of the general formula wherein Y' is -CHR-, -CHR-CHR- or -CHR-CHR-CHR-, Y is -CHR-, -CHR-CHR-, -CHR-CHR-CHR- or -CHR-CHR-CHR-CHR-, in which each R is a hydrogen atom or a methyl, ethyl or propyl group, Ar is a phenyl, furyl, thienyl, styryl or naphthyl group, each optionally mono- or di-substituted by substituents selected form halogen atoms and hydroxyl, C 1-4 alkoxy, C 1-4 alkyl, methylenedioxy, amino, C 1-4 alkylamino, di-C 1-4 alkylamino and nitro groups, R 1 is a hydrogen atom or a cyclohexyl, phenyl or C 1-4 alkyl-cyclohexyl or -phenyl group and R 2 is a hydrogen atom or R 1 and R 2 are together =CH-Ar, and ring A is optionally substituted by a C 1-4 alkyl or C 1-4 alkoxy group, and may be administered, e.g. as tablets, lozenges, chewing gum, capsules, lotions, creams, ointments and salves.
[GB1394717A]
Patent IE-791216-L (IE)
Title: Wound dressing
IPC: A61F13/02
Filed: 1979-08-08
Abstract: A non-occlusive, non-adherent dressing for wounds, the dressing comprising an imperforate (i.e. continuous) flexible film (10, 12, 14) for contacting the wound, and an absorbent pad (16, 18) backing the wound-contacting film (14) and extending beyond a substantial portion of the periphery (20) of the film (10, 12, 14), the dressing having vapor transport capacity approximating that of intact human skin. The absorbent pad (16, 18) removes wound exudate from the proximate area of the wound without the pad (16, 18) coming into contact with the open wound itself. The final construction, comprising the film (10, 12, 14) and absorbent backing (16, 18), permits a measurable amount of moisture vapor to be transmitted (greater than 0.06 mg/cm<sup>2</sup>/hr), thereby greatly reducing the degree of maceration and other problems that may be produced by a fully occlusive dressing.
Patent IE-41708-L (IE)
Title: 2,6-dioxo-tetra- and -hexa-hydropyridine derivatives
IPC: C07D211/34
Filed: 1975-06-16
Abstract: 1457619 2,6 - Dioxo - tetra- and hexahydropyridines ASPRO-NICHOLAS Ltd 23 June 1975 [22 June 1974] 27819/74 Heading C2C The invention comprises the title compounds, and their acid addition salts and quaternary ammonium derivatives, which contain (a) possibly a 1-alkyl substituent, (b) 3- (optionally substituted) Ph and 3-heterocyclyl- C 1-5 -alkyl substituents, as well as (c) 4- and/or 5-attached C 1-4 alkyl or C 3-8 (inclusive of the attached ring carbon atom or atoms) alkylene substituent, the "heterocyclyl" being derived from a non-aromatic N-containing 5-7 membered ring. The "alkyl" and "alkylene" radicals include unsaturated analogues. In an example, 1 - methyl - 2 - (2 - hydroxyethyl)pyridinium methosulphate is reduced to 1-methyl-2-(2- hydroxyethyl)piperidine which with SOCl 2 affords 1 - methyl - 2 - (2 - chloroethyl)piperidine, the latter condensed with m-methoxybenzyl cyanide to give 2 - (m - methoxyphenyl) - 4- (N - methyl - 2 - piperidyl)butyronitrile and then with 4 - (1 - ethoxy - 3 - methylbut - 2 - enylidene)morpholinium fluorosulphonate to give 2 - (1,1 - dimethyl - 2 - ethoxyethyl) - 2 - (mmethoxyphenyl) - 4 - (N - methyl - 2 - piperidyl)- butyronitrile, the latter being cyclized to 4,4-dimethyl - 2,6 - dioxo - 3 - m - methoxyphenyl- 3 - [2 - (N - methyl - 2 - piperidyl)ethyl]piperidine. Therapeutic compositions having C.N.S. activity comprise the title compounds, substituted as described above, and may be administered orally, parenterally or rectally.
[GB1457619A]
Patent IE-901354-L (IE)
Title: Improvements in/or relating to conveyor belting
IPC: B65G17/08
Filed: 1990-04-12
Abstract: In the field of conveyor belting used in food processing, known flat topped, plastics conveyor belting having transverse sections pivotally connected using plastics hinge pins has been found to be structurally weak. Stronger, steel hinge pins are difficult to locate and retain in the belting. The disclosure relates to a conveyor belting (1) having hinged transverse sections (2, 3) connected by high load transmitting hinge pins (11). The end (12) of each transverse section (2, 3) is formed as a keeper to retain the hinge pin (11) and the end (12) of each transverse section (2, 3) is resiliently deformable to permit access to the hinge pin (11). With this arrangement, the problems of locating and retaining high load transmitting hinge pins are eliminated. <IMAGE>
[GB2231318A]
Patent IE-33332-L (IE)
Title: Herbicidal compositions
IPC: A01N39/02
Filed: 1969-10-02
Abstract: 1,259,326. Herbicides containing amides of aryloxyalkane-carboxylic acids. PEPRO SOC: POUR LE DEVELOPPEMENT ET LA VENTE DE SPECIALITES CHIMIQUES. 29 Sept., 1969 [2 Oct., 1968], No. 47826/69. Heading A5E. Herbicidal compositions comprise as active ingredients compounds of formulae: wherein R is C 1-5 alkyl; R' is H or C 1-5 alkyl, haloalkyl or alkenyl; R" is C 1-5 alkyl, haloalkyl, alkenyl or haloalkenyl; A is halogen; B is C 1-3 alkyl or haloalkyl; and m and n are 0 to 4 provided that if m or n or m + n = 2 then the substituents are not in the 2, 4 positions. Typical compounds used are 2-(2, 5-dichlorophenoxy) propionic acid N, N-dimethylamide, 3-methyl-2, 4-dichlorophenoxyacetic acid N, N-dimethylamide, 3-methyl-4, 6-dichlorophenoxyacetic acid N, N-dimethylamide, #- naphthoxy acetic acid N, N-dimethylamide and 2-(2, 5-dimethylphenoxypropionic acid N, N- dimethylamide.
[GB1259326A]
Patent IE-851963-L (IE)
Title: Bifunctional cloning vectors
IPC: C12R1/465
Filed: 1985-08-08
Abstract: The invention relates to selectable, recombinant DNA shuttle vectors for use in streptomycetes and E. coli presenting moderately high copy number and comprising:
 a) an  SIMILAR 2.5 kb KpnI origin of replication - containing restriction fragment of plasmid pJL192, and
 b) one or more DNA segments that convey resistance to at least one antibiotic when transformed into a sensitive restrictionless host cell. 
<??>The invention further relates to transformants of the aforementioned vectors.
Patent IE-832184-L (IE)
Title: Derivatives of imidazole and 1, 2, 4-triazole.
IPC: C07D233/60
Filed: 1983-09-16
Abstract: Novel substituted azolylalkyl-t-butyl-ketones and -carbinols of the formula   <IMAGE>   in which Az is imidazol-1-yl or 1,2,4-triazol-1-yl, A is the carbonyl group or the hydroxymethylene group, and R is optionally substituted cycloalkylalkyl or cycloalkenylalkyl, and plant-tolerated addition products thereof with acids and metal salts, which are fungicidally active and are also useful as intermediates in making other fungicides.
Patent IE-802524-L (IE)
Title: Bootstrap circuit
IPC: H03K5/02
Filed: 1980-12-04
Abstract: PURPOSE:To protect the MOS transistor constituting a reset circuit, by inserting an MOS transistor connected for the gate with a high potential power supply, between an MOS transistor for a discharge circuit and a capacitor gate. CONSTITUTION:MOS transistors Q7, Q7' are connected in sereis between a point N4 and a low-potential power supply Vss, the gate of Q7 has a reset signal phi2, and the gate of Q7' is connected to a high-potential power supply Vcc. Thus, since the potential at the point N4 is voltage-divided at the transistors Q7, Q7', the potential at the drain side N4' of the transistor Q7 is much lower than the potential of the point N4. Thus, since the degree of operation of the transistor Q7 in deeper saturation region is lowered, the effect of hot electrons can be reduced similarly to other transistors Q6 and Q10.
[JP56087933A]
Patent IE-812895-L (IE)
Title: Enhancing liquid jet erosion
IPC: E02F3/92
Filed: 1981-12-09
Abstract: Process and apparatus for enhancing the erosive intensity of a high velocity liquid jet when the jet is impacted against a surface for cutting, cleaning, drilling or otherwise acting on the surtace. A preferred method comprises the steps of forming a high velocity liquid jet, oscillating the velocity of the jet at a preferred Strouhal number, and impinging the pulsed jet against a solid surface to be eroded. Typically the liquid jet is pulsed by oscillating the velocity of the jet mechanically or by hydrodynamic and acoustic interactions. The invention may be applied to enhance cavitation erosion in a cavitating liquid jet, or to modulate the velocity of a liquid jet exiting in a gas, causing it to form into discrete slugs, thereby producing an intermittent percussive effect,
Patent IE-893340-L (IE)
Title: Thermoplastically workable starch and a method for the¹manufacture thereof
IPC: C08J3/18
Filed: 1989-10-17
Abstract: In the manufacture of thermoplastically processable starch, an additive is essentially mixed with native or natural starch and the mixture is caused to melt by the application of heat and mechanical energy. The additive is a substance which lowers the melting point of the starch so that the melting point of the starch together with this additive lies below the decomposition temperature of the starch while, in addition, the additive has a solubility parameter of over 15 cal<1/2>cm<-3/2>. Once the starch-additive mixture has melted, the molten substance is mixed until it is at least virtually homogenous. In the melting range of the starch-additive mixture, the vapour pressure of the additive should be lower than 1 bar.
Patent IE-873548-L (IE)
Title: Peptidylaminodiols
IPC: C07K5/097
Filed: 1987-12-30
Abstract: A renin inhibiting compound of the formula: <IMAGE> wherein A is a substituent; W is C=O or CHOH; U is CH2 or NR2, provided that when W is CHOH then U is CH2; R1 is loweralkyl, cycloalkylmethyl, benzyl, 4-methoxybenzyl, halobenzyl, (1-naphthyl)methyl, (2-naphthyl)methyl, (4-imidazoyl)methyl, (alpha,alpha)-dimethylbenzyl, 1-benzyloxyethyl, phenethyl, phenoxy, thiophenoxy or anilino; R2 is hydrogen or loweralkyl; R3 is loweralkenyl, [(alkoxy)alkoxy]alkyl, (thioalkoxy)alkyl, lowerakenyl, benzyl or heterocyclic ring substituted methyl; R4 is loweralkyl, cycloalkylmethyl or benzyl; R5 is vinyl, formyl, hydroxymethyl or hydrogen; R7 is hydrogen or loweralkyl; R8 and R9 are independently selected from OH and NH2; and R6 is hydrogen, loweralkyl, vinyl or arylalkyl; provided that when R5 and R7 are both hydrogen and R8 and R9 are OH, the carbon bearing R5 is of the "R" configuration and the carbon bearing R6 is of the "S" configuration, or pharmaceutically acceptable salts or esters thereof. Also disclosed are renin inhibiting compositions, a method of treating hypertension, methods of making the renin inhibiting compounds and intermediates useful in making the renin inhibiting compounds.
[US5032577A]
Patent NO-771171-L (NO)
Title: Fremgangsm}te for } fremstille masse av lignocelluloseholdig fibermateriale.
Inventor: HOEGLUND HANS ERIK
IPC: D21B1/12
Filed: 1977-04-01
Abstract: remgangsmåte for å fremstille masse av 1ignocelluloseholdig fibermateriale"
Patent NO-823625-L (NO)
Inventor: SCHEUNEMANN KARL-HEINZ
IPC: A61K31/546
Filed: 1982-11-01
Abstract: A crystalline water soluble disodium salt of 7- beta -[2-(2-aminothiazol-4-yl)-2-syn-methoximinoacetamido]-3-(5-carboxymeth yl-4-methyl-1,3-thiazol-2-ylthiomethyl)ceph-3-em-4-carboxylic acid (cefodizim), or an adduct or solvate thereof with water and/or an organic solvent.
Patent NO-833571-L (NO)
Title: Fremgangsmaate ved fremstilling av magnesiumnitratopploesninger
Inventor: KELLY WILLIAM JOHN
IPC: C01F5/38
Filed: 1983-09-30
Abstract: En ren magnesiumnitratoppløsning, egnet som stabiliseringsmiddel for ammoniumnitratinneholdende gjød-' ningsmidler fremstilles ved å suspendere en vannuopp-lselig magnesiumforbindelse, såsom magnesiumoksyd i vann til å gi en 30-40 vekt%-ig suspensjon, hvoretter tilsettes 50-60 vekt%-ig salpetersyreopplsning i en slik mengde at reaksjonsblandingens slutt pH ligger i området 5,0-6,0, hvoretter magnesiumnitratoppløs-ningen separeres ved filtrering.
Patent NO-852272-L (NO)
Inventor: GABBAY SHLOMO
IPC: A61F2/24
Filed: 1985-06-06
Abstract: An improved prosthetic heart valve comprises a support body or stent covered by a layer of biological tissue having only the smooth surfaces thereof presented outwardly. The stent has a cutaway section and a flexible cusp (11) sewn thereto for opening and closing the valve. The valve cusp is made of pericardial tissue which has been doubled over such that the rough side thereof is folded inwardly. A sewing ring (12) is secured around the base of the stent and is made of pericardial or other biological material, so as to increase the likelihood of the sewing ring becoming covered with epithelium. The smooth-surfaced biological construction of the valve is highly durable and reduces the risk of thrombogenic or infection sites.
Patent NO-872928-L (NO)
Inventor: LORBER KURT
IPC: B42F1/10
Filed: 1987-07-14
Abstract: A device for the detachable clipping of paper sheets contains an approximately U-shaped clip (11), whose leg ends form longitudinal edges (14), onto which are shaped pins (17). The leg ends of two levers (22) can be snapped into the pins (17) and engages on the lateral faces (18) of clip (11), so as to permit a forcing apart of clip (11).
Patent NO-881404-L (NO)
Inventor: DEVIC MICHEL
IPC: D21C9/10
Filed: 1988-03-29
Abstract: Bleaching of pulps of mechanical origin in which the pulp is treated with a metal-complexing or sequestering agent and is then washed with an efficiency higher than 95 % before being subjected to the action of hydrogen peroxide at a temperature above 100 DEG C and not exceeding 250 DEG C at the pressure of steam at the said temperature for 1 to 30 minutes, not conjointly with a mechanical beating action.
Patent NO-900474-L (NO)
Inventor: RABIN DANIEL
IPC: C12N15/12
Filed: 1990-02-01
Abstract: Pancreatic islet cell antigens (ICA) that bind with antibodies found in the sera of patients afflicted with insulin-dependent (Type I) diabetes mellitus (IDDM). ICA proteins are expressed by recombinant cloning vehicles comprising DNA inserts isolated from islet cells. Full sequence native ICA proteins, or protein or peptide fragments thereof, can be used in the diagnosis of IDDM and in detecting or blocking human immunoglobulin, T-cells, or B-cells involved in IDDM.
Patent NO-900534-L (NO)
Inventor: EKINS ROGER PHILIP
IPC: G01N33/76
Filed: 1990-02-05
Abstract: Determn. of two or more analytes in a liq. sample is effected by: (a) loading ligands specific for each analyte onto a support in discrete locations such that each location has not more than 0.1 V/K moles of ligand, where V (litres) is the vol. of the sample and K (l/mole) is the equilibrium constant of the ligand for the analyte; (b) contacting the support with the sample; and (c) measuring the amts. of bound analytes by a competitive or non-competitive assay method using a labelled reagent for each ligand, the reagent being capable of recognising the filled or unfilled binding sites on the ligand.
Patent NO-900691-L (NO)
Title: Fremgangsmaate og apparat for eksponering av et straalingsfoelsomt materiale.
Inventor: TUULSE TANEL
IPC: G03B27/20
Filed: 1990-02-13
Abstract: Et apparat for kopiering av transparent- og eventuelt maskefilmer (19, 20) på en strålingsfølsom plate (12) omfatter en platebærer (2) på hvilken en eller flere strålingsfolsonune plater (12) og en eller flere transparente filmer (20) og eventuelle maskefilmer (19) kan plasseres i forhåndsbestemte gjensidige posisjoner. Apparatet innbefatter en kontaktramme (3) forsynt med midler (18) for å bringe rammen (3) og platebæreren i kontakt med vakuum og midler (VI, V2) for å bringe den transparente film(ene) (20) og maskefilmen(e) (19) i vakuumkontakt med et kontaktglass (16) anordnet i kontaktrammen (3). Et eksponeringslys (4) er anordnet for å rette stråling igjennom den eller de transparente filmer (20) og maskeflimene (19) for å kopiere disse på den strålingsfølsomme plate (12). Platebæreren (2) omfatter en fleksibel bæreplate (8) som er forbundet med apparatrammeverket (1) kun langs dens ytre kanter og som bærer et fleksibelt gummiteppe (10) som er forbundet med støtteplaten (8) kun langs dens ytre kanter. Støtte-platen (8) sammen med gummiteppet (10) og den strålings-følsomme plate () kan under påvirkning av vakuum bøyes konveks oppad og i kontakt med kontaktrammen (3) utgående fra sentrum av kontaktrammen (3) og deretter suksessivt utvide seg i alle retninger mot kantene av kontaktrammen (3) inntil det oppstår fullstendig kontakt. Fremgangsmåte for anvendelse av apparatet er også vist.
Patent NO-901792-L (NO)
Title: Fremgangsmaate og apparat til maaling av optisk absorpsjon av gassblandinger.
Inventor: RYAN FREDERICK MERK
IPC: G01N21/35
Filed: 1990-04-24
Abstract: Et gassanalyseapparat for å detektere nærværet eller mengden av en gass omfatter en elektromagnetisk strålingskilde (52) som leder en lysstråle gjennom en lyskondisjonerende anordning (54) slik at lysstrålen kollimeres til en parallell lysstråle. Den kondisjonerte lysstråle ledes deretter gjennom en gassprøvecelle (58) som inneholder en prøve av den aktuelle gass. Gassen har særegne vibrasjonelle og rotasjonelle absorpsjons- linjer som er spesifikke for denne gass, og kan endre lysstrålen i overensstemmelse med gassens avbsorpsjonskarakteristikk. Den endrede lysstråle ledes deretter mot en dobbeltbrytende etalon- anordning (64) som er utformet slik at den spesifikt er tilpasset til den aktuelle gassens absorpsjonslinjer. En elektro-optisk modulatorenhet (68) i tilknytning den dobbeltbrytende etalon- enhet modulerer absorpsjonslinjene mellom maksimalpunktene i transmisjonsspekteret og et punkt mellom disse maksimalpunkter, slik at det kan utledes et absorpsjonsforhold for således å bestemme nærværet eller mengden av den aktuelle gass.
Patent NO-905506-L (NO)
Title: Anordning til boring av en side- eller avledningsboring spesielt av et foret roer.
Inventor: JUERGENS RAINER
IPC: E21B29/06
Filed: 1990-12-20
Abstract: Anordning til boring "av en side- eller avledningsboring, spesielt i et f6ret borehull i underjordiske sten- eller jordformasjoner, med en avledningskileen- het (2) som kan festes i borehullet ved hjelp av en ekspansjonsplugg (!), og med et startskjæreverktøy (6) som kan festes * Ww-17 til en borestreng (10) til utskjæring av et borehullsvindu, og som er tilordnet en avledningsføring (9) som står i sam- virkende forbindelse med avledningskile- enheten (2), til innledning av en avledningsboreprosess. For å kunne fremstille et borehullvindu med reduserte arbeidsomkostninger og på kortere tid, er avledningsføringen (9) anordnet bak startskjæreverktøyet (6) regnet i boreretningen.
Patent NO-930508-L (NO)
Title: Svivelsementeringshode med manifoldanordning
Inventor: BRISCO DAVID P
IPC: E21B33/05
Filed: 1993-02-12
Abstract: Et svivelhode (10) med manifoldanordning (14) har fjernstyrte ventiler og pluggfrigjøringsstempler. Svivelhodet innbefatter et hus (16) som kan innkoples i en verktøystreng, og en sementeningsmanifold (14) som kan koples til et sementforråd. Sementeringsmanifolden (14) har fjernstyrte sementstyreventiler (292,296). Manifolden er dreibart montert på huset (16) med ; kontinuerlig fluldumforbindelse mellom manifold og hus selv når huset roterer i forhold til manifolden. Den dreibare opplagrlng er realisert ved hjelp av en svi veiforbindelse som innbefatter en dor (40) og en hylse (68). Svlvelforbindelsen gir kontinuerlig forbindelse mellom en trykkledning, som går fra hylsen til en trykkilde, og en annen trykkledning, som går fra doren og til en pil- eller kule-frigjøringsmekanisme (234). Dette muliggjør en betjening av frigjørings- mekanismen selv når huset (16) roterer i forhold til manifolden (14) og eventuelt hele sementeringshodet beveges opp og ned. Fordelaktig er nok en svivel- forbindelse (186,158) anordnet, også den med kontinuer- lig fluidumforbindelse mellom manifold og hus. Det beskrives også en foretrukken utførelse av en plugg- frlgjørlngsindikator (274).
Patent NO-931217-L (NO)
Inventor: MAH STANLEY HUI
IPC: B26D1/29
Filed: 1993-03-31
Abstract: PCT No. PCT/CA91/00369 Sec. 371 Date Jun. 21, 1993 Sec. 102(e) Date Jun. 21, 1993 PCT Filed Oct. 11, 1991 PCT Pub. No. WO92/08005 PCT Pub. Date May 14, 1992.A paper tail ripper having a pair of rotatably mounted knives, air motors which counter-rotate the knives and a deflector which deflects the paper tail toward the knives. The knives traverse closely spaced overlapping circles as they counter-rotate. The deflector sweeps the paper tail onto a transfer mechanism, which transfers the paper tail away from the ripper, so that the tail may be threaded through a calender stack, etc. The ripper is pivotally mounted on the transfer mechanism for movement between storage and operating positions.
Patent NO-933921-L (NO)
Title: Kunststoff-formmasse for fremstilling av formdeler med fargemessig avstembar dekoreffekt
Inventor: GUBITZ FRANZ
IPC: C08L59/00
Filed: 1993-10-29
Abstract: Kunststoff-formmasse som inneholder 0,3 til 3 vekt-£ karbon-fibre med en fiberlengde fra 0,5 til 18 mm, lar seg bearbeide til formdeler med en farget avstembar dekoreffekt. Disse formdelene finner særlig anvendelse i indre rom i kjøretøy, egner seg imidlertid også til andre anvendelsesformål som f.eks. husholdnings-apparatur, hagemøbler eller kontorutstyr.
Patent NO-943304-L (NO)
Title: Modulformet isolerende polstring for lukkede kamre
Inventor: PANTALONI JACQUES
IPC: F16L59/02
Filed: 1994-09-07
Abstract: Det er beskrevet en modulformet Isolerende polstring for et lukket kammer (7) bestående av plater (l, 2) og prefabrlkerte elementer, spesielt anpasset for kamre for transport av gods, så som containere. Platene og de prefabrikerte elementene utgjør endel av et sett som kan anpasses dimensjonene til kammerets (7) indre som skal isoleres og innbefatter alle nødvendige pol- strlngselementer. Platene (1) dekker kammerets yttervegger og taket består av et selvbærende isola- sjonslag i ett stykke. De prefabrikerte elementene Innbefatter i det vesentlige avstandsenheter (6) i form av små blokker som er plassert mellom det indre kammerets overflate og i det minste de ytre plate- overflatene og er fremstilt av et materiale som er istand til å bryte enhver termisk ledning mellom de to overflatene.
Patent NO-950233-L (NO)
Inventor: BERG TODD A
IPC: C09K3/14
Filed: 1995-01-20
Abstract: A method of making abrasive particles having a specified shape and abrasive articles containing abrasive particles having a specified shape. The method for preparing such an abrasive particle comprises the steps of: (a) providing a dispersion containing particles of a precursor of alpha alumina, preferably particles of alpha alumina monohydrate, in a liquid, which liquid comprises a volatile component; (b) providing a mold having a first surface and a second surface opposed to said first surface, said first surface having an opening to a mold cavity having a specified shape; (c) introducing the dispersion into said mold cavity; (d) removing a sufficient portion of the volatile component of the liquid from the dispersion while the dispersion is in the mold cavity, to form a precursor of an abrasive particle having approximately the same shape as the shape of the recess of the mold cavity; (e) removing the precursor of the abrasive particle from the recess of the mold; (f) calcining the removed precursor of the abrasive particle; and (g) sintering the calcined precursor to form the desired abrasive particle.
Patent NO-951889-L (NO)
Inventor: SCHWARZ FRANZ-THOMAS
IPC: C07D239/42
Filed: 1995-05-12
Abstract: Prepn. of 2-amino-4,6-dichloropyrimidine (I) comprises: (a) reaction of 2-amino-4,6-dihydroxypyrimidine (II) with an excess of phosphorus oxychloride at 20-80 degrees C, in the presence of triethylamine as acid trapping agent; and (b) isolating (I).