baber/WOPTO huggingface dataset:
Patent HU-209094-B (HU)
Inventor: GORTVA GABOR
IPC: G08B13/00
Filed: 1988-06-29
Abstract: A találmány tárgya riasztórendszer illetéktelen beavatkozás jelzésére, célszerűen gépkocsik védelmében, amelynek a védendő rendszer belső terében célszerűen a műszerfalban elhelyezett vevő, központi és riasztó egysége, a vevő egység bemenetére kódolt jelet adó távvezérlő egysége, a riasztó egység kimenetére kapcsolt, a védendő rendszer külső terébe sugárzó külső jelzőberendezése, gyújtást engedélyező egysége, a gyújtást engedélyező egység kimenetét bemenetként használó gyújtásrendszere, valamint egy vagy több áramforrása van. A vevő egységben (1) egy infrasugárzást érzékelő szelektív vevő (11) kimenete egy dekódolón (12) keresztül az első tároló (13) bemenetére, annak kimenete az időzítő egység (32) egyik bemenetére, az időzítő egység (32) másik bemenetére az akkumulátor (6) tápfeszültségét bemenetként használó terhelés érzékelő (31) kimenete, az időzítőegység (32) harmadik bemenetére a központi egység (2) egyik kimenete van kötve, az időzítő egység (32) kimenete a riasztó jelzés kapcsolón (33) keresztül a külső jelzőberendezés (34) bemenetére, a kombinációs egység (21) kimenete a második tároló (22) bemenetére, annak egyik kimenete az időzítőegység (23) bemenetére, melynek kimenete egyben a központi egység (2) egyik kimenete, a második tároló (22) másik kimenete, amely egyben a központi egység (2) másik kimenete, az engedélyező egység (4) bemenetére, amely egyben a gyújtásblokkoló egység (41) bemenete is, van kapcsolva, a gyújtásblokkoló egység (41) kimenete a gyújtásrendszer (42) bemenetére van kapcsolva.  HU 209 094 B 4. A leírás terjedelme: 12 oldal (ezen belül 4 lap ábra)
Patent HU-197467-B (HU)
Inventor: GRIMM ISTVAN
IPC: H03G3/30
Filed: 1986-09-26
Abstract: A találmány hídkapcsolású végerősítőt tartalmaz, amely egy mikrofon (M) egy önmagában ismert előerősítő (Al) bemenetére csatlakozik, melynek a kimenete első ellenálláson (Rl) keresztül a végerősítő (A2) bemenetéhez van kötve; a végerősítő (A2) invertáló kimenete az (m) egyrészt egy pnp tranzisztor (T2) emitteréhez kapcsolódik, melynek bázisa ötödik ellenálláson (R5) keresztül a végerősítő (A2) nem invertáló kimenetére (m) csatlakozik, kollektora pedig hetedik ellenálláson (R7) keresztül egyrészt párhuzamosan kapcsolt nyolcadik ellenálláson (R8) és második kondenzátoron (C2) át főidre van kötve, másrészt pedig hatodik· ellenálláson (R6) keresztül kapcsolódik egy npn tranzisztor (TI) bázisára, melynek emittere a földön, kollektora a végerősítő (A2) bemenetén van; továbbá a végerősítő (A2) invertáló kimenete (m) második ellenálláson (R2) keresztül egy kombinált fej (K) egyik sarkára kapcsolódik, a kombinált fej (K) másik sarka földre kötött harmadik ellenálláshoz (R3) és egy elsó kondenzátor (Cl) egyik fegyverzetéhez van kötve, miközben az első kondenzátor (Cl) másik fegyverzete a negyedik ellenálláson (R4) keresztül a végerősítő (A2) nem invertáló kimenetéhez (m) csatlakozik. (1. ábra) oc   ct  cx < -CH 1. ábra 197467
Patent HU-208616-B (HU)
Title: Method for treating green coffee bean
Inventor: HUSAINI SAEED AHMAD
IPC: A23F5/04
Filed: 1989-08-23
Abstract: The moisture content of green coffee beans is increased to at least about 25% to 30% by weight based upon the weight of the moisturized beans. The moisturized beans then are heated in the presence of a substantially inert gas atmosphere under a positive pressure at a temperature sufficient and for a time sufficient for hydrolyzing and pyrolyzing the beans while substantially avoiding charring the beans. The treated beans then are dried.
Patent HU-209011-B (HU)
Inventor: SZEKELY GYOERGY
IPC: F02M3/055
Filed: 1990-08-07
Abstract: A találmány belső égésű motorok porlasztójának alapjárat vezérlési elrendezésére vonatkozik. A légáteresztő szelep (2) mind a gázpedál alá beépített bontó kapcsolóval, mind a gépjárműbe beépített tolóüzemi vezérlővel össze van kötve, valamint a légáteresztő szelep (2) a hozzá csatlakozó tömlőkön (5, 6) át a légszűrőn keresztül a külső légkörrel, illetve a menetes toldattal (8) is össze van kapcsolva.  1. ábra CŰ HU 209 011 A leírás terjedelme: 6 oldal (ezen belül 2 lap ábra)
Patent HU-201612-B (HU)
Inventor: DECSEI LAJOS
IPC: C09K23/56
Filed: 1985-12-23
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Silberhalogenid-Emulsionen fuer fotografische Zwecke. Bei dem erfindungsgemaessen Verfahren wird die Silberhalogenid-Emulsion hergestellt, indem man beim Ausfaellen dem System als Schutzkolloid ein amphoteres Cyclodextrin-Polymer (CD), das ein durchschnittliches Molekulargewicht von 2 000 bis 15 000 und einen Cyclodextringehalt von 30 bis 70% aufweist und worin das Molverhaeltnis zwischen den basischen und saueren Gruppen einerseits und dem CD andererseits zwischen 0,5:1 und 5:1, vorzugsweise zwischen 1:1 und 3:1 variiert werden kann, in einer 0,5- bis 5fachen, vorteilhaft 1,5- bis 3fachen Menge, bezogen auf das Gewicht des Silberhalogenids, in Form einer 2 bis 20%igen Loesung zugibt. Die erhaltenen Kristalle werden in diesem Medium 15 bis 60 Minuten einem physikalischen Reifen unterworfen, wobei im Zeitintervall zwischen der fuenften Minute ab Beginn des Reifens bis zur fuenften Minute vor dessen Ende, in einem zweckmaessigen Zeitpunkt Gelatine in einer 0,5- bis 4fachen Menge, bezogen auf das Gewicht des Silberhalogenids, dem System zugegeben wird.
Patent HU-203744-B (HU)
Title: Process for producing thiophen-2-acetic acid
Inventor: CSERMELY GYOERGY
IPC: C07D333/24
Filed: 1989-09-28
Abstract: Thiophene-2-acetic-acid is prepd. from 2-ocetyl thiophene by oxidation with nitric acid to thiophene-2-glyoxylic-acid. Thiophene-2-carboxylic-acid produced as a by product is removed by extraction with an organic solvent. Thiophene-2-glyoxylic-acid remaining in the reaction mix is reduced to thiophene-2-acetic acid by hydrazinic hydrazine-hydrate or hydrazine-sulphate
Patent HU-206658-B (HU)
Title: Overhead-wire mounting carrier
Inventor: PACH KARL
IPC: E04G1/22
Filed: 1990-08-24
Abstract: A catenary vehicle using a working platform which can be raised and lowered comprises, for extending the working platform (4), four lifting columns each having hydraulically driven members capable of moving telescopically relative to one another. In this arrangement, each lifting column can be adjusted by in each case one stationary, vertically arranged toothed chain (21) running over in each case one chain wheel (29) and two pressure rollers (20), the chain wheels (29) for two respective lifting columns (3a, 3b) being rigidly mounted on a shaft (19). In addition, an additional chain wheel (29) is rigidly mounted on each shaft (19), and a first shaft (19) is connected to a second shaft (19) by means of a chain (8a and 8b respectively). The parallel position of the working platform 4 with respect to the reference plane is guaranteed by the invention without having to use an additional parallel-guiding device. <IMAGE>
Patent HU-198878-B (HU)
Inventor: AHLGRIMM HERBERT
IPC: B60K35/00
Filed: 1987-12-02
Abstract: Die Erfindung bezieht sich auf Schalteinrichtungen fuer Ventile an Kraftfahrzeugen, die vorzugsweise mit Kippfahrerhaus ausgestattet sind. Die Merkmale der Erfindung bestehen darin, dass am Handhebel eine Kurvenscheibe befestigt ist, die gelenkig mit einer gabelfoermig verlaengerten Gestaengestange verbunden ist. Die Gestaengestange ist drehbar und verschiebbar in einer Gestaengebuchse an der Fahrerhauswand gefuehrt und hat an ihrem Ende eine feste Platte mit einem Schaltfinger. Auf der Gestaengestange ist zwischen Gestaengebuchse und Platte mit Schaltfinger eine sich abstuetzende Feder angeordnet. Eine elastische Manschette ist an der Gestaengestange fest angeordnet und schuetzt die Feder und die Gestaengestange vor Verschmutzung. Sie verhindert auch das Eindringen von Geraeuschen ins Fahrerhaus. Fig. 1
Patent HU-208430-B (HU)
Inventor: BALOGH TIBOR
IPC: C07B61/00
Filed: 1988-12-30
Abstract: A találmány tárgya eljárás kristályos halmazállapotú N,N’-bisz[3-(3,4,5-tirmetoxi-benzoil-oxi)-propil]-homopiperazin és sósavas sója előállítására 3,4,5-trimetoxi-benzoesav-(3-halogén-propil)-észter és homopiperazin reakciója útján. A találmány értelmében a kiindulási anyagok reagáltatását alkálifém-jodid katalizátor, szerves és/vagy szervetlen bázis és vízmetkötőszer jelenlétében, szerves oldószerben történő hevítéssel végezzük, célszerű- en a képződött vizet eltávolítjuk, majd a reakcióelegyet savas vízzel kivonatoljuk, a kivonatot meglúgosítjuk, s a kivált kristályos, nyers bázist szűrjük, adott esetben átkristályosítjuk és kívánt esetben sósavas sóvá alakítjuk, s kívánt esetben az el nem reagált 3,4,5-trimetoxi-benzoesav-(3-halogén-propil)-észtert regeneráljuk, valamint a reakció során képződött és át nem alakult N-[3-(3,4,5-trimetoxi-benzoil-oxi)-propil]-homopiperazin közbenső terméket elkülönítjük. HU 208 430 B A leírás terjedelme: 4 oldal
Patent HU-202475-B (HU)
Title: Process for producing 1-halogen-3-(3,4,5-trimethoxy benzoyloxy)-propane
Inventor: BALOGH TIBOR
IPC: C07C69/78
Filed: 1988-12-30
Abstract: 1-chloro-3-/3,4,5- tri:methoxy-benzoyloxy) propane and/or 1-brone-3-/3,4,5- tri:methoxy-benzoyloxy)-propane is prepd individually or mixed in an organic solvent by alkylating an (in)organic salt of 3,4,5-tri:methoxy-benzoic acid by 1-brono-3-chloro-propane in the presence of a phase transfer catalyst at 10-100 deg.C. The salt may be prepd in situ.
Patent IT-1234417-B (IT)
Title: Banknote holder with containing bar
Inventor: RENAI GIAMPIERO
IPC: A45C/
Filed: 1989-02-23
Granted: 1992-05-18
Abstract: The present invention concerns a banknote holder with containing bar, said holder comprising a box (1), laterally provided with an opening (3), through which banknotes (6) will come out bent with "U" form around a longitudinal bar (4), said bar holding them and preventing them from slipping (Fig.1).
Patent IT-1234436-B (IT)
Title: Solid body provided with elements that are reciprocally bound and compounded according to a series of different combinations
Inventor: MATTIOLI RUGGERO
IPC: A63F/
Filed: 1989-09-29
Granted: 1992-05-18
Abstract: The present invention concerns a solid body provided with elements that are reciprocally bound and compounded according to a series of different combinations. Said body comprises twelve base elements with a trunk-pyramidal form with pentagonal base, provided with hollow shells obtained in portion of the base angles. Said elements are set such that their bases form a dodecahedron. Said solid body also comprises thirty additional elements comprising a solid body with at least two adjacent plane faces forming a "V" angle, said angle comprising a portion of the angle edge and forming an appendix with two opposite, convex surfaces that are complementary to those of said hollow shells. Each of said additional elements is bound to the corresponding shells of two of said first twelve elements, such that each plane face of said additional elements be kept in contact with the corresponding lateral face of at least one of said first twelve elements. The present solid body also comprises elastic devices aimed at binding all first and additional elements together, thus keeping them in reciprocal contact, allowing them to rotate one against the other around the axis of any of said first elements.
Patent IT-1240585-B (IT)
Title: A citrus fruit and lemon juicer
IPC: A47G/
Filed: 1990-01-26
Granted: 1993-12-17
Abstract: This invention is made up of a small container and a cap, with the appropriate and sorted appendages and ribs; These are characterized by a convex component that turns and is able to complete alternating semicircular movements, while a second concave component that is pressed using a handle, which is necessary to juice the citrus fruit. This is also characterized by the fact that the concave and convex components are moved manually by the individual making the juice. To be more specific the convex component, is equipped with a vertical pivot that is guided by a hollow hub, that is moved by the hand of whomever is using it and making the convex component to move continuously and alternatively to ninety, one hundred or more degrees and so using a handle sticking out of the side of the cap and the concave component of the cap is manually pushed in regard to the citrus fruit being juiced and in regard to the convex component. This is controlled by a handle being worked by the person doing the juicing. Using these components the juicing of the citrus fruit or lemon is completed.
Patent IT-1136006-B (IT)
Title: Vehicle with container side handling equipment
Inventor: BOGARELLI DOMENICO
IPC: B65F/
Filed: 1980-06-26
Granted: 1986-08-27
Abstract: The vehicle has side equipment to handle containers (1), to empty into a hopper. There are grip points (4) on the container. The equipment is fixed to the chassis (60) to move on two rollers, one (61) on the chassis and another (110) on the ground. Movement is affected by hydraulic actuator (62,63). The end of the moving actuator part (62) carries further actuators (112,18',14) which control positions of the ground roller (110) and the height and range of a hinged lifting beam (16',25') which has gripping equipment at its end. Containers can also be lifted back on to the vehicle.
Patent IT-1049251-B (IT)
Title: Diphenyloxindole derivatives laxatives
Inventor: ORZALESI GIANNI
IPC: A61K/
Filed: 1965-04-01
Granted: 1981-01-20
Abstract: Cmpds. of general formula (I): where R = p-heteroacyloxyphenyl group. Laxative having a cathartic action on the intestinal walls. Compds. (I) R = In forms suitable or oral administration, esp. as enteric coated tablets or for rectal administration. Dosages contain 20-40mg. (I). Daily dose 20-80mg. (I).
Patent LV-14732-B (LV)
Title: Target for spallation of neutrons
Inventor: PLATACIS ERNESTS
IPC: H05H6/00
Filed: 2013-07-10
Abstract: The present invention relates to neutron spallation sources, in particular to the neutron spallation target and can be used for obtaining neutron radiation. The present invention assures an increased efficiency of target cooling and an improved safety. The neutron spallation target includes a tungsten disc 1, covered by hermetically sealed outer casing 4. The target is mounted on an assembled axis, comprising an axial inner tube 3 for cold liquid metal feeding and an axial outer tube 10 for heated liquid metal removal. The axial inner tube 3 is connected with three radially azimuthal feeding channels 6 formed in the upper part of the disk 1, which through azimuthal channels 2 formed in the upper part of the disk 1 are connected with three radially azimuthal removal channels 5 formed in full thickness of the disc 1. Radially azimuthal removal channels 5 through the azimuthal channels 7 formed in the lower part of the disk 1 are connected with three radial azimuthal removal channels 8 formed in the lower part of the disk 1 which are connected with the axial outer tube 10.
Patent LV-10319-B (LV)
Title: A process for transfer pattern printing on a moist textile web, and a system as well as a pattern carrier web for use in the process
Inventor: AKERBLOM INGA S
IPC: D06P7/00
Filed: 1992-12-23
Abstract: PCT No. PCT/DK88/00162 Sec. 371 Date Apr. 30, 1990 Sec. 102(e) Date Apr. 30, 1990 PCT Filed Oct. 4, 1988 PCT Pub. No. WO89/02950 PCT Pub. Date Apr. 6, 1989.In a process for transfer pattern printing of a moist textile web consisting wholly or predominantly of natural fibers, in particular cotton, and/or artificial fibers on the basis of cellulose, the pattern carrier web is a web of paper or a paper-like material which carries a pre-printed pattern of a water soluble or dispersable dye. After wetting of the textile web to a carefully controlled moisture, the textile web is joined with the pattern carrier web and the joined webs are compressed at a suitable pressure so that the pattern can be transferred without using heat. The advantage is that it will be possible to avoid both heating and use of organic solvents. It is also possible to transfer a pattern to a colored textile web since the textile web may be wetted before hand with an aqueous dye solution or dispersion instead of undyed liquid.
Patent LV-10187-B (LV)
Title: New therapeutically active compound and a process for its preparation
Inventor: NDSTRIM ARNE ELOF BR
IPC: A61K31/4418
Filed: 1993-06-30
Abstract: The novel compound 5-fluoro-2[[(4-cyclopropylmethoxy-2-pyridinyl) methyl]sulfinyl]-1H-benzimidazole and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing the compound as active ingredient, and the use of the compound in medicine.
Patent LV-11484-B (LV)
Title: Ingredients composition for cream liqueurs
Inventor: ALDIS SPALVINS
IPC: C12G3/06
Filed: 1996-04-11
Abstract: Cream liquor has natural ingredients - fresh cream, sweeteners, products containing ethyl alcohol, emulsifier containing albumen, taste additives, aroma additives, as well as biologically active additives. The method for making this composition is described where the main emphasis is on the production of a stable albumen-fat-water dispersal system.
Patent NO-139357-B (NO)
Title: Fremgangsmaate ved fremstilling av fibre av termoplastisk materiale
Inventor: BERGLUND PER HENRIK SIXTEN
IPC: D04H13/00
Filed: 1974-02-22
Abstract: Fremgangsmåte .ved fremstilling av fibre av termoplastisk materiale..
Patent NO-149175-B (NO)
Title: Fremgangsmaate til fremstilling av antibakterielt aktive rifamycin p-derivater
Inventor: CRICCHIO RENATO
IPC: C07D513/18
Filed: 1977-05-16
Abstract: Fremgangsmåte til fremstilling av antibakterielt aktive rifamycin P-derivater.
Patent NO-144675-B (NO)
Title: Anordning for kompensering av skadelig magnetisk paavirkning mellom to eller flere rekker av langsstilte elektrolyseovner for smelte-elektrolytisk fremstilling av metall, for eksempel aluminium
Inventor: SELE THORLEIF
IPC: C25C3/16
Filed: 1979-07-24
Abstract: Anordning for kompensering av skadelig magnetisk påvirkning mellom to eller flere rekker av langsstilte elektrolyseovner for smelte-elektrolytisk fremstilling av metall, for eksempel aluminium.
Patent NO-147877-B (NO)
Inventor: TREIBER HANS JOERG
IPC: C07D267/10
Filed: 1979-12-28
Abstract: Novel hexahydro-1,4-oxazepines of the general formula I    <IMAGE>  I where R1 is hydrogen, or alkyl or acyl each of 1 to 4 carbon atoms, R2 is alkyl of 1 to 4 carbon atoms and R3 and R4 are identical or different and each is hydrogen or methyl, and their salts with physiologically acceptable acids, processes for their preparation, drugs which contain these compounds, and their use in therapy. The compounds may be used for the pharmacotherapy of pain of various geneses.
Patent NO-157643-B (NO)
Inventor: CHOWHAN ZAKA-UD-DIN T
IPC: A61K9/20
Filed: 1981-07-27
Abstract: A novel pharmaceutical composition which comprises an acid salt of a thieno-pyridine derived compound, a pharmaceutically acceptable, nonvolatile organic acid (particularly citric acid) and optionally other suitable pharmaceutical excipients.
Patent NO-156902-B (NO)
Inventor: BILLENSTEIN SIEGFRIED
IPC: C08G81/00
Filed: 1982-10-28
Abstract: The new compounds consist essentially of ethylene oxide/propylene oxide block polymer units and oxyalkyleneated alkylphenol/aldehyde resin units, which are linked by methylene groups. They are prepared by reacting a block polymer of ethylene oxide and propylene oxide and an oxyalkyleneated alkylphenol/aldehyde resin with formaldehyde. The new compounds constitute especially advantageous breaking agents for petroleum.
Patent NO-166151-B (NO)
Inventor: BHAGAVATULA VENKATA ADISESHAIA
IPC: G02B/
Filed: 1982-12-06
Abstract: Disclosed is an optical waveguide fiber having a core (10, 12, 14) surrounded by a layer (16) of cladding material. The core is characterized in that it includes a region (14) of depressed refractive index. The inner radius ai of this region (14) is greater than zero, and the outer radius ao thereof is less than the core radius. By appropriately selecting the core index depression characteristics such as radial location, width, depth and shape, a fiber having the desired wave guide dispersion characteristics can be designed. Dispersion minimization over a wide wavelength range can be achieved, without adverse affect on system loss.
Patent NO-162244-B (NO)
Inventor: MUELLER KARL FRIEDRICH
IPC: B29D11/00
Filed: 1983-10-11
Abstract: Clear, strong, crosslinked polymers are described, which are obtained by copolymerization of (A) 8-70% of a linear or branched polysiloxane of 400-100,000 molecular weight (MW) containing at least two terminal or pendant, polymerizable, vinyl groups per each 5000 MW unit of polysiloxane and which are attached to the polysiloxane through at least two urethane, thiourethane, urea or amide linkages and (B) 30-92% of a mono- or divinyl compound or a mixture of such monomers consisting of 85 to 100% of water insoluble monomers. These polymers are useful in the preparation of hard or soft contact lenses.
Patent NO-166564-B (NO)
Title: Stabilisert vandig hydrogenperoksydpreparat, fremgangsmaate for fremstilling derav samt anvendelse av preparatet.
Inventor: EKMAN BO MAGNUS
IPC: A01N/
Filed: 1987-08-14
Abstract: Stabilisert vandig hydrogenperoksydpreparat innbefatt-ende en vandig dispersjon, som basert på. den samlede vekten av preparatet inneholder 0,1-4 vekt-* hydrogenperoksyd og 0,5-15 vekt-* av B-krystaller av ett eller flere lipider valgt blant monoglycerider av fettsyrer, ascorbinsyre, fosfat eller melkesyreestere av fettsyrer og monoglyceroletere, nevnte fettsyrer og eterkjeder er mettede og inneholder 12-18 karbonatomer.Preparatet fremstilles ved først å danne en vandig blanding av e-krystallene og deretter tilsette hydrogenperoksydet, fortrinnsvis i form av en vandig oppløsning.Videre beskrives anvendelsen av preparatet som et patte-neddykkingspreparat for melkeproduserende dyr.
Patent NO-169709-B (NO)
Inventor: HARRISON GEORGE EDWIN
IPC: C07C27/00
Filed: 1988-10-05
Abstract: PCT No. PCT/GB87/00070 Sec. 371 Date Oct. 5, 1988 Sec. 102(e) Date Oct. 5, 1988 PCT Filed Feb. 5, 1988 PCT Pub. No. WO88/05767 PCT Pub. Date Aug. 11, 1988.Hydrogen is supplied first to a last hydrogenation zone, and gases recovered from the last hydrogenation zone are passed to the first hydrogenation zone of a continuous multi-zone liquid phase process for hydrogenating an organic compound to a corresponding hydrogenation product. The organic compound, with a suitable diluent or recycle hydrogenation product, flows successively through the zones beginning with the first and ending with the last hydrogenation zone to undergo hydrogenation with the hydrogenation product being recovered from the last hydrogenation zone.
Patent NO-170628-B (NO)
Inventor: A COURT RICHARD
IPC: C07C271/26
Filed: 1989-02-15
Abstract: A process for the production of a carbamate having the formula: <CHEM> wherein X and Y are independently either hydrogen, a hydrocarbyl group or a hetero-substituted hydrocarbyl group or the group of formula: <CHEM> wherein Z is either a divalent hydrocarbyl, a substituted hydrocarbyl group or the group of formula:      [ (alkylene)m(NH)n(alkylene)m ]      (III)  in which n = 0 to 4 and m = 1 to 4, and R is a hydrocarbyl or substituted hydrocarbyl group, provided that if either one of X or Y is the group of formula (II), the other of X or Y is hydrogen, which process comprises reacting a compound of the formula<EMI ID=00.3 HE=20 WI=125 TI=CF> wherein X and Y are independently either hydrogen, a hydrocarbyl group or a hetero-substituted hydrocarbyl group with a dihydrocarbyl carbonate having the formula: <CHEM> wherein independently R is as defined above in the presence as catalyst of a strong organic base and in the proportions necessary to produce either a mono-carbamate or a bis-carbamate.