baber/WOPTO huggingface dataset:
Patent IE-883149-L (IE)
Title: Data transmission method for a digital switching system
IPC: H04M11/06
Filed: 1988-10-18
Abstract: The invention describes a system architecture for a digital switching system in which signalling and packet data are exchanged collision-free and without data loss between terminal stations (E) and a higher-level unit (PAD). In a subordinate unit (LCi), data flowing in the direction of the higher-level unit (PAD) are separated and signalling data are preprocessed. Signalling and packet data flowing in the direction of the terminal station are switched to the same data channel and, using a monitoring device, a control signal identifying the state of the data channel is conducted to the higher-level unit (PAD). The architecture is modular and thus variably adaptable to different packet data loads. <IMAGE>
[EP0312806A1]
Patent IE-883290-L (IE)
Title: Preparing polynucleotides; pharmaceutical compositions
IPC: C12P19/34
Filed: 1988-11-01
Abstract: This invention relates to a process of preparation of nucleotide polymers wherein a lysate of a bacterial culture is passed successively through three columns (ion exchange resin, hydrophobic resin and molecular sieve), whereby there is obtained a substantially pure polynucleotidephosphorylase solution. Polymerization of this agent leads to non toxic and non pyrogen products. This invention relates also to products thus obtained and to therapeutic compositions containing the same.
[US4927755A]
Patent NO-811561-L (NO)
Title: Innretning for elektrisk stimulering av slakt.
Inventor: BRAATHEN OLE SIGMUND
IPC: A22C/
Filed: 1981-05-08
Abstract: Ved en innretning for elektrisk stimulering av slakt for. å hindre kuldeseighet, hvor elektriske impulser påføres slaktet hvert 80. millisekund i en periode på 30-35 sek.,kes impulsenes styrke fra 10-20 volt til maksimalverdien på ca. 85 volt i løpet av en innledningsperiode på 2-5 sek..
Patent NO-860069-L (NO)
Inventor: PERKINS PETER GRAHAM
IPC: G02B1/10
Filed: 1986-01-10
Abstract: A material particularly used for protecting a lens surface against scratching comprises a solution containing nitrocellulose in solvent the nitrocellulose being present in the solvent in the range 2.5% to 3.8% by weight. When the material is applied to a lens a coating adheres to the lens in which nitrocellulose is the principal constituent. This coating protects the lens against scratching during manufacture and enables traditional manufacturing processes to be applied for identifying and marking the focal centre of the lens blank prior to shaping the periphery of the blank because the coating does not disguise the optical properties of the lens.
Patent NO-870989-L (NO)
Inventor: PERSSON BENGT ARNE
IPC: F16K24/04
Filed: 1987-03-10
Abstract: A ventilating device for a closed conduit system com­prising a housing (7) with a liquid throughflow conduit (11) extending through end walls (8, 9) of the housing (7). The throughflow conduit (11) has a liquid permeable part (13) which is directed towards an upper air vent (23) and the end edges (24, 25) of which are spaced from the end walls (8, 9), and the side edges of which part (13) adjoining the end edges (24, 25) are preferably provided with wing-like elements (21, 22) whose free edges (26, 27) form gaps (B, C) with the inner wall (28) of the housing (7). Liquid flows out beneath the conduit (11) through those gaps (D, E) located between the end walls (8, 9) and the end edges (24, 25) of the wing-like element (21, 22), and small air bubbles enclosed in the liquid form larger air bubbles which rise up between the wing-like element (21, 22) and the inner wall (28) of the housing (7) and depart through the vents (23).
Patent NO-883243-L (NO)
Inventor: SHERMAN PETER G
IPC: C09K3/14
Filed: 1988-07-21
Abstract: Compositions and methods of using the compositions in preparing ferrous metal components for subsequent surface electroplating by preparing a solution containing an acid and a sequestering agent, immersing the components and abrading media in the solution, and agitating the components and the abrading media while maintaining the components and the media immersed in the solution. The composition has, by defined weight percents, oxalic acid; a phosphorus sequestering agent; the ratio by weight of oxalic acid to sequestering agent being in a range of from about 0.7:1 to about 0.2:1; a quantity of an ammonifying agent sufficient and effective for adjusting the pH of the solution formed on dissolving the composition in water to a range of from about 3.5 to about 6; a quantity of a surfactant sufficient and effective for accomplishing wetting of the composition; and a quantity of a carrier material in the form of a suspending agent sufficient to make up the remainder of the composition.
Patent NO-890431-L (NO)
Inventor: HERMECZ ISTVAN
IPC: C07D221/00
Filed: 1989-02-02
Abstract: Novel 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid derivatives of the general formula <IMAGE>  in which R represents an alkyl group having 1-12 carbon atoms, which can optionally be substituted by an alkoxycarbonyl group having 1-4 carbon atoms, and furthermore denotes a cycloalkyl group having 3-9 carbon atoms, an adamantyl group or an optionally substituted phenyl group, R<1> represents hydrogen or an alkyl group having 1-4 carbon atoms or R and R<1> together form a chain of the formula -(CH2)n- in which n represents 4, 5 or 6, R<2> represents hydrogen, halogen or an alkyl group having 1-4 carbon atoms and R<3> represents hydrogen or an alkyl group having 1-4 carbon atoms, while the meaning of m is 0 or 1. The compounds have gastroprotective activity. They are prepared in analogy to known processes.
Patent NO-891794-L (NO)
Inventor: FEDERICI CARLO
IPC: B29B7/00
Filed: 1989-04-28
Abstract: Process for the preparation of mixtures of thermally incompatible polymers, said process comprising:   a) feeding into a first extruder (1) a thermoplastic polymer possessing relatively low processing temperatures; b) feeding into at least one second extruder (5) at least one thermoplastic polymer possessing relatively high processing temperatures; and c) feeding the molten polymer of the second extruder (5) into the first extruder (1) at a point near its outlet (4). l
Patent NO-893519-L (NO)
Inventor: LAZAR PETER
IPC: B42C7/00
Filed: 1989-09-01
Abstract: The present invention is directed to a method and apparatus for making book bindings. In one of the preferred embodiments the method includes the steps of initially aligning a hot-melt adhesive strip on a base; aligning a sheet of material relative to the hot-melt adhesive strip; pressing a first time the sheet of material onto a strip of hot-melt adhesive for bonding the strip of hot-melt adhesive to the sheet of material without forming folding lines therein; pressing a second time the sheet of material against at least one associated bending edge adjacent at least one longitudinal side of the hot-melt adhesive strip thereby forming at least one fold line in the sheet of material, maintaining the sheet of material in the initially aligned position during the first and second pressing steps; and lifting the sheet of material following the first pressing step and prior to the second pressing step by moving the at least one associated bending edge to a position below an anticipated position of the at least one fold line thereby lifting the hot-melt adhesive off the base.
Patent NO-893701-L (NO)
Title: Vannfast solfilter.
Inventor: MATRAVERS PETER
IPC: A61Q1/04
Filed: 1989-09-15
Abstract: Hudbeskyttende preparat for topisk påføring på patte-dyrhud for beskyttelse mot vann-avvasking. Preparatet inneholder fra 1 til 10 vekt% C-ettet syntetisk fettsyrevoks og fra 3 til 30 vekt% vannfri, hydrofob stivelse dispergert i 60-96 vekt% farmakologisk akseptabel, vannfri bærer.
Patent NO-900953-L (NO)
Title: Fremgangsmaate til pressing av resultater fra seismiske marineundersoekelser ved anvendelse av dobbelte hydrofonkabler
Inventor: SANDERS JOE I
IPC: G01V1/36
Filed: 1990-02-28
Abstract: Ved marine seismiske undersøkelser skal det Ifølge oppfinnelsen anvendes minst to marine hydrofonkabler som står l avstand fra hverandre vertikalt og som hver Inneholder flere seismiske detektorer. En seismisk energikilde som er anbragt ved eller nær overflaten av en vannmasse, blir så benyttet til å frembringe seismiske bølger som forplanter seg Inn l Jordforma- sjonene under vannet og reflekteres tilbake opp for å bil påvist ved hver hydrofonkabel. Seismiske bølger blir også reflektert fra skilleflaten mellom vann og luft tilbake ned mot hydrofonkablene og må skilles fra de oppadgående seismiske bølger for å øke nøyaktigheten ved resultatet. Seismiske bølger som påvises ved to valgte seismiske detektorer som står l avstand fra hverandre vertikalt, settes sammen for å danne et sumslgnal som deretter føres sammen med en skalert tldslntegral av et dlfferanseslgnal for å danne det resulterende signal som bevarer enten de oppadgående eller nedadgående seismiske balger. I en foretrukket utførelsesform for foreliggende oppfinnelse blir sumslgnalet og Integralsignalet begge filtrert for å fjerne lIkestrømforspennlng og de lavfrekvente komponenter før sammensetningen. Dessuten blir tldslntegralet av differanseslgnalet fortrinnsvis skalert ved å balansere energien l dette med energien l sumslgnalet for derved automatisk å Justere for de variasjoner som kan oppstå l avstanden mellom de- tektorene . ; Ved en utførelsesform for oppfinnelsen blir de oppadgående og nedadgående signaler tldsforskjøvet og satt sammen for å bringe slgnal/støyforholdet så høyt som mulig.
Patent NO-902184-L (NO)
Inventor: FORSSEN ERIC ANTON
IPC: A61K9/50
Filed: 1990-05-16
Abstract: Novel liposome-entrapped cationic, lipophilic drug compositions, e.g., anthracycline antineoplastic agent compositions, and multistep entrapment/loading procedures for preparing them are disclosed. These procedures involve forming liposomes from phospholipids, such as distearoyl phosphatidyl-choline or a similar long chain fatty acid diester phospholipid, to be loaded with the drug, e.g., daunorubicin or doxorubicin, in aqueous medium in the presence of an acid, e.g., an organic acid which can be a monofunctional pyranosidyl acid such as lactobionic acid, adding the drug, and then adding a base such as calcium carbonate whose cations cannot pass through the vesicles' bilayers to charge neutralize the organic acid anions in the external aqueous phase and induce the acid anions in the internal aqueous phase to become charge neutralized by attracting the cationic, lipophilic drug.
Patent NO-905101-L (NO)
Title: Kjemiluminescerende materiale paa basis av substituert antracen.
Inventor: MOER ANDRE VAN
IPC: C07C43/29
Filed: 1990-11-26
Abstract: Det er beskrevet nye derivater av antracen for emisjon av et blått kjemiluminescerende lys. Derivatene er av 9,10-bis(fe-nylantracen) substituert i 2-stilling i antracenringen og på fenylgruppene. Fremstilling av turkis kjemiluminescerende lys er også beskrevet ved å blande nevnte derivater med et grønt 9,10-bis(fenyletynyl)antracen.
Patent NO-914300-L (NO)
Inventor: SALITURO FRANCESCO GERALD
IPC: A61K31/4439
Filed: 1991-11-01
Abstract: The present invention is directed to a new class of 3-amido and 3-sulfamido-indolyl NMDA antagonists and their use in the treatment of a number of disease states.
Patent NO-933661-L (NO)
Inventor: CHOU TING C
IPC: C01G55/00
Filed: 1993-10-11
Abstract: A catalyst composition containing one or more binary oxides of palladium and rare earth metal such as Ce, La, Nd, Pr and/or Sm. The catalyst composition is used for the catalytic combustion of gaseous combustion mixtures of oxygen and carbonaceous fuels such as methane, e.g., a natural gas/air combustion mixture. Specific preferred binary oxides may be, for example, M2O3.PdO (e.g., La2O3.PdO) or 2M2O3.PdO, wherein in each case M is La, Nd or Sm. A process of combusting gaseous carbonaceous fuels includes contacting a catalyst as described above under combustion conditions, e.g., 925 DEG  C. to 1650 DEG  C. and 1 to 20 atmospheres pressure, to carry out sustained combustion of the combustion mixture, including catalytically supported thermal combustion. Regeneration of over-temperatured M2O3.PdO catalyst is also provided for.
Patent NO-934759-L (NO)
Inventor: AXELSSON OSKAR
IPC: A61P9/00
Filed: 1993-12-22
Abstract: The present invention discloses compounds of the formula <CHEM>  or a pharmaceutically-acceptable addition salt thereof  wherein R' and R'' independently of each other are hydrogen or alkyl, or R' and R'' together form a 3 to 6 membered alkylene chain; one of R<1> and R<2> is aryl which may be substituted one or more times with halogen, CF3, CN, OH, alkyl, cycloalkylalkyl, alkenyl, alkynyl, alkoxy, amino, nitro, sulphamoyl, tetrazolyl, CO2H, CO2-alkyl and the other of R<1> and R<2> is hydrogen, halogen, alkoxy, amino or alkyl; and R<4>, R<5>, R<6> and R<7> independently of each other are hydrogen, halogen, amino, nitro, CN, OH, CF3, alkyl or alkoxy; and n is 0 or 1; provided that neither of R<1> and R<2> is phenyl or substituted phenyl when n is 0. The compounds are useful as pharmaceuticals, for example, in the treatment of ischemia, anoxia, migraine and psychosis.
Patent NO-940244-L (NO)
Inventor: ALVESALO ANTERO
IPC: H04W8/12
Filed: 1994-01-24
Abstract: PCT No. PCT/FI93/00218 Sec. 371 Date Jun. 9, 1994 Sec. 102(e) Date Jun. 9, 1994 PCT Filed May 24, 1993 PCT Pub. No. WO93/25050 PCT Pub. Date Dec. 9, 1993A method for location updating in a cellular radio network. The network stores subscriber data permanently in a home location register (HLR) and temporarily in visitor location registers (VLR) integrated with mobile services switching centers (MSC). In connection with a call setup, the HLR requests the VLR to provide routing information for the subscriber, whereafter the inbound call is routed to the pertinent MSC and the subscriber is paged by the radio path. The network updates the location of the subscriber by check paging performed as a background run at suitable times.
Patent NO-941255-L (NO)
Inventor: FALLON RENEE A
IPC: A61K9/70
Filed: 1994-04-07
Abstract: PCT No. PCT/US92/08631 Sec. 371 Date Mar. 16, 1994 Sec. 102(e) Date Mar. 16, 1994 PCT Filed Oct. 9, 1992 PCT Pub. No. WO93/06803 PCT Pub. Date Apr. 15, 1993A transdermal drug delivery device that administers drug in an initial pulse followed by a substantially lower continuous rate comprising a drug reservoir of the drug dissolved in a nonvolatile skin permeation enhancer and a volatile permeation enhancer confined between a backing that is permeable to the volatile permeation enhancer and an underlying substrate layer that is permeable to the drug and both enhancers. When the device is placed on the skin the volatile permeation enhancer is depleted from the reservoir by evaporation through the backing such that the magnitude and duration of the pulse is dependent upon the permeability of the backing layer to the volatile enhancer.
Patent NO-943288-L (NO)
Title: Anvendelse av pentoksyfyllin ved fremstilling av farmasöytiske preparater til behandling av granulomatöse og fibroserende lungesykdommer
Inventor: ZABEL PETER
IPC: C07D473/04
Filed: 1994-09-06
Abstract: Det er beskrevet anvendelsen av pentoksyfyllin, eventuelt i kombinasjon med ytterligere terapeu- tiske virkestoffer ved fremstilling av farmasøytis- ke preparater til behandling av granulomatese og fibroserende lungesykdommer.
Patent NO-950474-L (NO)
Title: Metoder for endotoksinprofylakse og terapi
Inventor: LEVINE DANIEL M
IPC: C07K7/08
Filed: 1995-02-09
Abstract: Det beskrives terapi og profylakse av endotoksin- forårsaket toksisitet. Dette oppnås ved å administrere et lipid som det aktuelle endotoksin forbinder seg med, for- trinnsvis sammen med et peptid som ikke er et apolipo- protein. Fortrinnsvis administreres de to bestanddeler i form av en rekondisjonert partikkel, selv om dette på ingen måte er nødvendig.
Patent NO-950690-L (NO)
Title: Anordning for å fordampe en aktiv substans
Inventor: DUTERLOO CAROLINE GERTRUDE
IPC: A61L9/03
Filed: 1995-02-23
Abstract: Oppfinnelsen angår en anordning for å fordampe en aktiv substans, slik som et insektsmiddel eller en parfyme- sammensetning, omfattende et reservoar for minst en flytende sammensetning som inneholder nevnte aktive substans, hvilken anordning omfatter innretning for å fordampe nevnte sammenset- ning og innretning for å tilføre nevnte sammensetning til innretningen for fordampning av denne. Tilførselsinnretningens tilførselskapasitet er mindre enn fordampningsinnretningens fordampningskapasitet.
Patent NO-961347-L (NO)
Title: Fremgangsmåte for fjerning av aromater fra hydrokarbon-dampström
Inventor: RUITER BRAM DE
IPC: C10G7/08
Filed: 1996-04-02
Abstract: Fremgangsmåte for fjerning av aromatiske hydrokarboner fra hydrokarbondamp-strøm, omfattende følgende trinn: (1) i en kolonne for ekstraktiv destil- lasjon bringes en hydrokarbondamp-strøm i kontakt med et ekstraksjons-løsnings- middel med evne til selektiv oppløsning av aromatiske hydrokarboner, (2) i den øvre del av kolonnen for eks- traktiv destillasjon tas ut et dampfor- mig raffinat med et redusert innhold av aromatiske hydrokarboner, (3) i bunndelen av kolonnen for ekstrak- tiv destillasjon tas ut en flytende løs- ningsmiddelstrøm som er blitt anriket med aromatiske hydrokarboner, og minst en væske omfattende ekstrak- sjons-løsningsmiddel og aromatiske hydrokarboner tas ut fra den lavere del av kolonnen for ekstraktiv destillasjon og minst en del av den uttatte væske opp- varmes deretter under slike betingelser at minst en del av de aromatiske hydro- karboner som er til stede i væsken for- damper uten vesentlig fordampning av ekstraksjons-løsningsmidlet, hvoretter den oppvarmede væske/damp-strøm retur- neres til kolonnen for ekstraktiv des- tillasjon.
Patent NO-963390-L (NO)
Title: Sorterbart emballasjeark
Inventor: AGUT PHILIPPE
IPC: D21H19/22
Filed: 1996-08-14
Abstract: Det beskrives et sorterbart emballasjeark for mekanisk pakking av dokumenter, som gjør dem i stand til å bli automatisk sortert og distribuert av posttjenesten. Emballasjearket ifølge oppfinnelsen består av et opakt, påtrykkbart papirsubstrat som er selvklebende ved hjelp av et lag av kaldforseglende lim, som er påført i det minste på deler av innersiden av nevnte substrat.
Patent NO-971901-L (NO)
Title: Testplugg for ventiltre
Inventor: WONG HENRY
IPC: E21B33/043
Filed: 1997-04-24
Abstract: Oppfinnelsen angår en testplugg (10) fortetting av en utboring (12) i en rørhenger (14), omfattende et ringformet plugglegeme (20) som har en gjennomgående ak-siell utboring (22), hvor den aksielle utboring (22) danner et avsmalnende ringformet sete (24) og et forstørret mottak (26) inne i plugglegemet (20), et antall støttedogger (28) som er fjernbart montert inne i tilsvarende spor (30) utformet i plugglegemet (20) nær en nedre del av mottaket (26); en spindel (36) som er glid-bart mottatt inne i mottaket (26), hvor spindelen (36) har en nedad- og utadvendt kamoverflate (60) utformet på en nedre del; og en tapp (62) som har en avsmalnende lukningsdel (66) tilpasset til å mottas i det ringformede sete (24) en fjær (74) å forspenne lukningsdelen (66) mot setet (24) og en pakningsring (80) for å danne en fluidum-tett pakning mellom lukningsdelen (66) og setet (24); hvor hver støttedogg (28) omfatter en indre skrå kant (92) utformet på en øvre del, som for-trinnsvis passer til kamoverflaten (60) på spindelen (36), slik at når spindelen (36) blir satt, vil kamoverflaten (60) engasjere den skrå kanten (92) og tvinge støtte-doggene (28) inn i en ringformet forsenkning (16) utformet i rørhengeren (14) for dermed å sikre testpluggen (10) inne i rørhengeren (14); og hvor spindelen (36) omfatter en innadgående ringformet krave (40) og tappen (62) omfatter en utad-gående ring som danner en nedadvendt ringformet skulder (70) som overlapper kraven (40) ovenfor lukningsdelen (66), slik at lukningsdelen (66) ikke vil tette mot det ringformede sete (24) hvis ikke spindelen (36) er helt satt, og spindelen (36) vil utløse lukningsdelen (66) fra det ringformede sete (24) under uthenting av testpluggen (10), for dermed å utjevne trykket ovenfor og nedenfor testpluggen (10).
Patent NO-974144-L (NO)
Title: Belegg for metall-overflater
Inventor: VERDIERE FRANCIS
IPC: B32B15/085
Filed: 1997-09-09
Abstract: En metall-overflate belagt med en tenmoplastisk polymer og omfattende minst et adhesiv anordnet mellom metalloverflaten og den termoplastiske polymer, der adhesivet har et vicat-punkt på mindre enn eller høyst i det vesentlige lik den mulige oppvarmingstemperatur for metalloverflaten. I en utførelsesform bringes det inn en epoksyharpiks mellom metallet og adhesiveL Oppfinnelsen finner særlig anvendelse for de ytre overflater av rør som ikke kan oppvarmes til ut over 55 til 70°C. Adhesivet er fortrinnsvis en etylen/alkyl(met)akrylaL^maleinsyreanhydrid-kopolymer.
Patent NO-974322-L (NO)
Inventor: HOFMANN KATHRYN J
IPC: C12N9/10
Filed: 1997-09-19
Abstract: The present invention relates to expression vectors for HPV18 L1 proteins.
Patent NO-981624-L (NO)
Inventor: CHILDS STEPHEN LEE
IPC: C11D17/04
Filed: 1998-04-08
Abstract: Dryer-activated fabric softening compositions and articles having improved stability, for use in an automatic clothes dryer consisting essentially of: (A) from about 30% to about 75% of a diester quaternary ammonium (DEQA) compound having the formula:wherein R is a long chain, saturated and/or unsaturated, C8-C30 hydrocarbyl, or substituted hydrocarbyl substituent and mixtures thereof, and the counterion, X-, can be any softener-compatible anion; and, (B) nonionic softener at a level of from about 15% to about 50%, where the nonionic softener is fatty acid partial ester of sorbitan; and wherein the ratio of component (A) to component (B) is from about 3:1 to about 1:1.
Patent NO-984198-L (NO)
Inventor: BEASLEY JR CHARLES M
IPC: A61K31/55
Filed: 1998-09-11
Abstract: The invention provides a method for treating extreme aggression comprising administering an effective amount of olanzapine to a patient in need thereof.
Patent NO-985121-L (NO)
Title: Pellet-brenselbrenner for oppvarming- og t°rkesystemer
Inventor: WHITFIELD OLIVER J
IPC: F23L5/02
Filed: 1998-11-03
Abstract: En pellet-brenselbrenner innbefatter en kompakt varmeisolert fyrboks for å tilveie-bringe varme gasser til en kjele, ovn eller tørker. Apparatet innbefatter en rist som innbefatter en resisproserende arm for å fjerne klinker og aske fra risten. Pellet-brenselmating er tilveiebrakt ved en trakt som er isolert fra fyrboksen ved en luft-lås. En forbrenningsluftmanifold er anbrakt rundt fyrboksen for å forvarme primær og sekundær forbrenningsluft.
Patent NO-990334-L (NO)
Inventor: DESANTIS NICOLA
IPC: C07C237/52
Filed: 1999-01-25
Abstract: A process for the preparation of 5-[acetyl(2,3-dihydroxypropyl)amino]-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide of formula (I), starting from 5-amino-1,3-benzenedicarboxylic acid of formula (II), comprising the following steps: step a) is the reaction in heterogeneous phase between 5-amino-2,4,6-triiodo-1,3-benzenedicarboxylic acid and thionyl chloride in a solvent selected from the group consisting of: straight or branched (C7-C16) hydrocarbons, (C7-C8) aromatic hydrocarbons, 1,1,1-trichloroethane, n-butyl acetate, diglyme (diethylene glycol dimethyl ether), in the presence of catalytic amounts of a tertiary amine, to give compound (III); step b) is the acetylation reaction of compound (III) with glacial acetic acid both as the solvent and the reagent and thionyl chloride; step c) is the formation of compound (V) by reaction of the compound (IV) with 1-amino-2,3-propanediol, by reaction of compound (IV) in a dipolar aprotic solvent, selected from the group of dimethylformamide (DMF), dimethylacetamide (DMA), dimethylsulfoxide (DMSO) or N-methyl-pyrrolidinone; step d) is the alkylation of the compound (V) in aqueous solution at basic pH, by addition of a sodium hydroxide-calcium hydroxide mixture, with 3-chloro-1,2-propanediol or epichlorohydrin, at a temperature of 40-90 DEG  C.