baber/WOPTO huggingface dataset:
Patent EP-0088397-A3 (EP)
IPC: C12C7/26
Filed: 1983-03-04
Abstract: Die Erfindung bezieht sich auf ein Verfahren zur Behand­
lung von Bier mit Kieselsol. Zur Lösung der Aufgabe, ein be­
kanntes Verfahren dieser Art derart zu verbessern, dass der 
Klärprozeß wirksamer und wirtschaftlicher gestaltet wird, mit 
der Möglichkeit, den Brauprozeß zu verkürzen, indem die Fil­
trations- sowie Separationseigenschaften des späteren Bieres 
verbessert werden, gibt man erfindungsgemäss das Kieselsol 
der Würze zu und trennt von der dadurch verursachten Aus­
flockung die Würze oder das Jungbier ab.
Patent EP-0097323-A3 (EP)
IPC: A61P9/04
Filed: 1983-06-15
Abstract: This invention relates to 2-(4-pyridyl)-thiazole deriva­
tives of the general formula 
  
(wherein the substituents R₁ to R₆ are as defined in the 
specification). The invention also relates to processes for 
preparing such compounds and to pharmaceutical composi­
tions containing them. The compounds are useful in increas­
ing cardiac contractility and some of the compounds exhibit 
bronchodilator activity.
Patent EP-0106115-A3 (EP)
IPC: C07J31/00
Filed: 1983-09-07
Abstract: Es wird ein Vefahren zur Reinigung von Corticosteroid­
phosphorsäureester-Alkalisalzen mit Hilfe von Aktivkohle 
beschrieben. Die hochgereinigten Verbindungen eignen sich 
zur Herstellung von klarstabilen Lösungen.
Patent EP-0110627-A3 (EP)
Title: Polytetrafluorethylene laminate for footwear articles
IPC: A43B17/10
Filed: 1983-11-17
Abstract: This invention provides a waterproof and breathable elastomeric polytetrafluoroethylene layered article for use in, for example, material for footwear articles. The waterproof and breathable polytetrafluoroethylene layered article can, for example, exhibit elastomeric properties of stretch to break of 275% in the machine direction, and 145% in the tranverse direction and a total stretch recovery of at least 39% after being stretched 75% extension for 100 cycles. This invention further provides a waterproof and breathable elastomeric polytetrafluoroethylene layered article bonded to a stretch fabric for footwear articles. The waterproof breathable elastomeric polytetrafluoroethylene layered article bonded to a stretch fabric is thus durable and possesses a moisture vapor transmission rate exceeding 1000 gms/m<2>/day, and preferably above about 2000 gms/m<2>/day.
Patent EP-0121717-A3 (EP)
IPC: A01K9/00
Filed: 1984-02-27
Abstract: Bei einem Tränkeautomaten (1), in dessen Mixer (3) zur 
Zubereitung eines flüssigen Futtermittels dosiert zugegebe­
nes Pulver und erwärmtes Wasser miteinander vermischt 
werden, ist dem Mixer (3) das erwärmte Wasser aus einem 
Boiler (5) mit einer dem Auslösungsvermögen des Pulvers 
entsprechenden Temperatur von ca. 60-70°C in einer ge­
genüber der aufzubereitenden Futtermittelkonzentration re­
duzierten Menge zuführbar. Außerdem sind dem Mixer (3) 
eine oder mehrere wechselweise einschaltbare und jeweils 
über eine Saugleitung (19) mit einer Saugstelle (11) verbun­
dene Mischvorrichtungen (21) nachgeschaltet, in denen 
durch Zugabe von Wasser das in dem Tränkeautomaten (1) 
aufbereitete Futtermittel auf eine trinkfertige Temperatur 
von ca. 40°C abkühlbar und/oder auf die jeweilige Konzen­
tration einstellbar ist.  
     Auf diese Weise ist es möglich, pulverförmiges Futter­
mittel in einem auf 60-70°C erhitzten, dem Auflösungsver­
mögen des Pulvers entsprechenden Wassers vollständig 
und in kurzer Zeit aufzulösen, den Tieren aber das flüssige 
Futtermittel in einer trinkbaren Temperatur von ca. 40°C zur 
Verfügung zu stellen.
Patent EP-0128120-A3 (EP)
IPC: C07D207/16
Filed: 1984-05-28
Abstract: Trisubstituierte Oxazolidinone der Formel 
  
worin R₁ einen Aryl- oder Heteroarylrest bedeutet, R₂ und R₃ 
unabhängig voneinander Wasserstoff oder Niederalkyl oder 
gemeinsam Niederalkylen darstellen und alk für Niederalky­
len steht, dessen Valenzen von benachbarten oder zueinander 
1,3-ständigen Kohlenstoffatomen ausgehen, mit der Mass­
gabe, dass in Verbindungen mit (-)-trans-Anordnung der 
Wasserstoffatome in 4- und 5-Stellung des Oxazolidinringes 
R₁ von unsubstituiertem Phenyl verschieden ist, wenn R₂ und 
R₃ für Wasserstoff stehen und alk 1,3-Propylen bedeutet, wer­
den als antidepressive Arzneimittelwirkstoffe vorgeschlagen. 
Sie werden hergestellt, indem man z.B. eine Verbindung der 
Formel 
  
worin X₁ eine nukleofuge Abgangsgruppe darstellt, oder ein 
Salz davon intramolekular cyclisiert.
Patent EP-0114800-A3 (EP)
IPC: F03D7/02
Filed: 1984-01-20
Abstract: A horizontal shaft wind turbine with few blades is 
provided with a device for turning or twisting the blades 
about their longitudinal axes, and comprising a power 
source (13) situated outside the turbine shaft and adapted to 
impart axial motion to an axially displaceable clutch 
mounted on the shaft, the clutch having two main parts (16, 
18) in mutual coaction such that one part is rotationally 
stationary on the shaft, whereas the other part may rotate 
with the shaft, the part (16) rotating with the shaft being 
coupled to the blades (9, 10).
Patent EP-0157317-A3 (EP)
IPC: C02F3/02
Filed: 1985-03-22
Abstract: Es wird ein Verfahren zur biologischen aeroben Reini­
gung von Abwasser beschrieben, bei dem in einer ersten 
Verfahrensstufe eine Temperatur von 30 bis 60°C und in ei­
ner zweiten Verfahrensstufe eine Temperatur von 20 bis 
40°C herrscht, wobei die Temperatur in der ersten Verfah­
rensstufe immer grösser als in der zweiten Verfahrensstufe 
ist, und bei dem ein Teil des Belebtschlamms der zweiten 
Verfahrensstufe nach seiner Abtrennung in die erste Ver­
fahrensstufe zurückgeführt wird. Das Verfahren hat eine ho­
he Abbauleistung und erzeugt einen Belebtschlamm mit gu­
tem Sedimentationsverhalten.
Patent EP-0166130-A3 (EP)
IPC: C12N5/00
Filed: 1985-05-06
Abstract: Additives for use in cell culture comprise ovomacro­
globulin obtainable from egg-white protein. The additives 
are incorporated into culture mediums as a subsituent to 
serum, which has been normally added to conventional 
nutrition mediums in the field of cell culture, thus establish 
a non-serum cultivation.  
     The ovomacroglobulin desirably promotes the 
propagating property of cultivated cells and facilitate the 
isolation of aimed substances produced by the cultured 
cells.
Patent EP-0176894-A3 (EP)
Title: Toric lens generating
IPC: B24B13/04
Filed: 1985-09-20
Abstract: @ Elliptical error in the generating of toric lenses is substantially eliminated, thereby reducing the time and cost of the production of such lenses. A cup-shaped cutter wheel is swept to cut the lens in a plurality of cuts, suitably three cuts. During each cut the inclination of the cutter wheel and its displacement from the lens in a direction along the optical axis of the lens are changed. Each subsequent cut reduces the elliptical error left after the preceding cut. A computer controller, including a memory storing a table of values of angular orientations and displacements of the cutter wheel with respect to the lens for each of a series of cross curve powers (D<sub>c</sub>) which is desired to accompany each of a series of base curve powers (D<sub>B</sub>), is used to control the positioning of the cutter unit mounted on the headstock and the tailstock on which the lens is mounted for cutting so as to cut both convex (plus) and concave (minus) toric lenses with minimal elliptical error in the cross curve thereof.
Patent EP-0165009-A3 (EP)
IPC: B02C17/22
Filed: 1985-06-05
Abstract: A liner (13) for the outlet port (12) of a rod mill including a 
cylindrical body (15) which projects outwardly through an 
outlet port (12) and which is provided on the peripheral edge 
of the opening (14) of the liner (13). The projecting length of 
the cylindrical body (15) on the side close to the end portion 
of the barrel (11) of the rod mill is preferably longer than that 
on the opposite side.
Patent EP-0178899-A3 (EP)
IPC: C23G5/00
Filed: 1985-10-15
Abstract: A process for cleaning a metal, plastic or wood surface 
on which there is a residue resulting from contact with a 
cured resin which comprises applying to said surface a 
solution of a copolymer of N-vinyl-2-pyrrolidone and 
maleic acid, drying said solution of N-vinyl-2-pyrrolidone 
and maleic acid copolymer to form a film, and separating 
said film from said surface.
Patent EP-0172060-A3 (EP)
Title: Substrat de culture pour les cellules, tissus, organes, végétaux et plantes entières
IPC: A01G9/10
Filed: 1985-07-05
Abstract: Un substrat de culture pour les cellules, tissus, organes 
végétaux et plantes entières, et constitué d'un tampon 
cylindrique (1). Pour améliorer le développement des orga­
nes végétaux tels que plants le tampon cylindrique (1) est 
formé de fibres longues (2) disposées radialement par 
rapport à l'axe du tampon et obtenues à partir d'une fourrure 
artificielle coupée en bande (3), repliée sur elle-même pour 
former un cylindre, les deux lèvres extrêmes (4, 5) de la 
bande (3) étant ensuite fixées l'une à l'autre par exemple par 
couture collage ou soudage.
Patent EP-0194681-A3 (EP)
IPC: C08F6/14
Filed: 1986-03-13
Abstract: A process for recovering a fluoroalkanoic acid from an 
aqueous medium which comprises treating an aqueous 
mixture containing the acid or a selected salt of the acid with 
a selected quaternary ammonium salt to form an organic 
compound, contacting the resulting mixture with a chlorin­
ated hydrocarbon liquid to extract the organic compound 
from the aqueous liquid into the organic liquid, distilling the 
extractant, then acidifying the organic compound and steam 
distilling.
Patent EP-0202443-A3 (EP)
Title: Method and device for the combustion of liquid and/or solid pulverulent fuels
IPC: F23D17/00
Filed: 1986-04-04
Abstract: A method of and apparatus for burning liquid fuels such as oil or the like and/or solid fuels, especially coal, peat or the like, in pulverized form, the latter either in dry condition or mixed with a carrier liquid such as water and/or oil to form an emulsion being introduced together with the liquid fuel into a combustion chamber while creating a recirculating flow profile, said flow profile being confined by a rotating outer flow of air. For thorough breaking-up of the fuel introduced into the combustion chamber the fuel inlet is constituted by a plurality of inlet ports approximately evenly distributed along a circumference, especially a circle, the liquid-fuel inlet ports and the inlet ports for solid fuel or a fuel emulsion being alternately arranged along said circumference. The fuel inlet ports may be directed either radially and/or at an outward inclination in the direction of flow, based on the longitudinal axis of the combustion chamber. Preferably, a central compressed-air injection is also provided.
Patent EP-0202533-A3 (EP)
IPC: G02B23/16
Filed: 1986-05-06
Abstract: An apparatus for counterbalancing the weight of the 
movable member in a precision instrument includes a resi­
lient member which is coupled, by way of a non-elastic mem­
ber, over an eccentric surface of a rotatable member to the 
movable member. Rotation of the eccentric member causes 
the resilient member to deform an amount proportional to the 
eccentricity of the member and a nearly constant counterba­
lancing force may be applied to the movable member.
Patent EP-0229254-A3 (EP)
IPC: H01G9/02
Filed: 1986-11-11
Abstract: An electrolytic capacitor comprising a capacitor element 
and an electrolyte impregnated to the element, wherein the 
electrolyte contains a fluorocarboxylic acid or its salt as a 
solute dissolved in an organic solvent.
Patent EP-0213672-A3 (EP)
IPC: G02B6/44
Filed: 1986-08-15
Abstract: A connector for a multifiber optical cable in which each of the 
fibers is retained on a common housing which includes receptacle portions 
for retaining, respectively, a fitting for the cable, and each ferrule to 
which respective optical fibers are secured. The housing is preferably 
molded of a plastic material with integral constituents for retaining the 
ferrules and cable fitting. The ferrules extend from the housing and can 
be secured to respective optical connectors or other devices.
Patent EP-0195567-A3 (EP)
IPC: H01M10/04
Filed: 1986-03-07
Abstract: The present invention concerns a bipolar storage battery. 
The storage battery (10) consists of bipolar elements (12) 
in consecutive mutual contact, each element comprising a 
plate (13) of electrically conductive material which has 
been coated on one side with a positive active compound 
(14) and on the other side with a negative active compound 
(15); of separator plates (16) containing electrolyte, 
which separate the adjacent bipolar elements (12); and of 
an enclosed gas-tight housing (11), which surrounds the 
bipolar elements (12) placed in consecutive contact. The 
edges of the bipolar element plates (13) are at least 
partially apart from the walls of the housing (11) so that 
no continuous, sealing contact is established between the 
walls of the housing (11) and the plates (13).
Patent EP-0202891-A3 (EP)
IPC: C02F1/32
Filed: 1986-05-16
Abstract: An ultra-violet light water purifier comprises a path through 
which water is conducted and along which ultra-violet light from 
a U.V. lamp (10) is arranged to be emitted, there being two photo 
detectors (D1 & D2) arranged along the path, each viewing the U.V. light 
in the path through a respective window (24, 26), and means to compare 
the detector outputs, the window of one detector being of a material 
which filters out ultra-violet light at germicidal wavelengths 
and the other window of a material which passes these wavelengths. 
The compare means is a differential amplifier the 
output of which is indicated on a meter and is also fed to a 
threshold amplifier connected in the control circuit of an electrically 
operated valve through which said water passes. The 
circuit may be set up so that when the intensity of U.V. light 
from the lamp is sufficient for germicidal purposes the valve 
is held open, but if the efficiency of the lamp falls to below 
satisfactory performance, or if it fails altogether or there 
is a power failure, the valve is automatically closed.
Patent EP-0209260-A3 (EP)
Title: Brocidal mixture
IPC: C02F5/10
Filed: 1986-06-19
Abstract: A method of treating an aqueous system is disclosed which comprises adding thereto a phosphonium compound of the formula: <CHEM> wherein each R, which may be the same or different, is a C1-C6 alkyl group which is optionally substituted by, say, a hydroxy, ethyl, aryl or cyano group, or a phenyl group which is optionally substituted by one or more C1-C4 alkyl groups, R1 is a C8-C18 alkyl group and X is chlorine or bromine and a straight chain aliphatic aldehyde.
Patent EP-0221642-A3 (EP)
IPC: G01N21/31
Filed: 1986-08-28
Abstract: A hand held apparatus is disclosed to color grade fish 
fillets. The apparatus illuminates a sample fillet and measures 
the intensity of the resultant reflected light at certain frequen­
cies at which hemoglobin displays peculiar absorption char­
acteristics. The apparatus ratios these measured intensities 
and compares the ratios with stored sets of values represent­
ing ratios of intensities of reflection at these frequencies 
which would be expected for flesh of various color grades. 
The apparatus displays the color grade associated with the 
closest set of values.
Patent EP-0272352-A3 (EP)
IPC: F16D7/04
Filed: 1986-11-28
Abstract: A bi-directional advance gear (10) having a torque limiting radial 
friction clutch is disclosed. The friction clutch comprises an 
annualr member (26) having an inner and outer periphery and having 
gear teeth (24) defined by its outer periphery and radially 
inwardly projecting teeth (56) on its inner periphery. A flat web 
(32) substantially closes one face of the annular member to provide 
a shallow recess (34) bounded by the projecting teeth and defines 
an opening (36) concentric to the annular member. An inner member 
having a hub portion (4) is rotatably mounted in the opening and 
has a pinion gear (28) at one end. The other end of the hub has a 
plurality of radially extending rosette-shaped springs (58) 
contained in the recess. Each spring has a pair of radially 
extending leg portions joined by an arcuate portions (66) Each 
arcuate portion has a lobe (68) biased into engagement with the 
inwardly projecting teeth.
Patent EP-0254826-A3 (EP)
IPC: B01F15/00
Filed: 1987-05-08
Abstract: Die Erfindung betrifft ein Dichtungssystem für Rührer eines Rühr­
kessels mit Untenantrieb sowie ein Verfahren zum Rühren in derartigen 
Rührkesseln.  
     Das Dichtungssystem besteht aus  
- einer Antriebswelle  1 ,  
- einem Rohr  3 , das die Rührerwelle mit einem Spalt umschließt,  
- einem rotationssymmetrischen Körper  2 , der nach oben hin geschlossen 
ist und fest und dicht mit der Rührerwelle verbunden ist und  
- einer gasundurchlässigen Dichtung  6 .
Patent EP-0248266-A3 (EP)
IPC: H01L21/822
Filed: 1987-05-19
Abstract: Logikschaltung bei der jeweils zwei oder mehrere, insbe­
sondere zueinander komplementäre Feldeffekttransistoren 
(T3, T1) über einen Eingang (E1) mit demselben Eingangs­
signal angesteuert werden. Für diese Transistoren ist 
eine mit dem Eingang (E1) verbundene, verzweigungsfrei 
ausgebildete Gateleitung (9) vorgesehen, wobei die Gate­
elektroden durch im Abstand voneinander angeordnete Ab­
schnitte der Gateleitung (9) gebildet werden.
Patent EP-0253257-A3 (EP)
Title: Substituted amino-5,6,7,8-tetrahydronaphthyl-oxyacetic asubstituted amino-5,6,7,8-tetrahydronaphthyl-oxyacetic acids, method for their preparation and their applicationcids, method for their preparation and their application as medicaments as medicaments
IPC: C07D213/82
Filed: 1987-07-06
Abstract: Antithrombotic, antiatherosclerotic and antiischaemic compounds of the formula   <IMAGE>   in which R1 is   <IMAGE>   or SO2R4, R3 is aryl, substituted aryl, heteroaryl, aralkyl or the group   <IMAGE> R4 is aryl or substituted aryl, R2 is OH, alkoxy, phenoxy, benzoxy or NR5R6, and R5 and R6 each independently is hydrogen or alkyl, or one of the radicals R5 or R6 is benzyl, and physiologically acceptable salts thereof with mono- and divalent cations.
Patent EP-0258669-A3 (EP)
IPC: C08J9/228
Filed: 1987-08-05
Abstract: Pellets of a chlorinated vinyl chloride resin 
composition comprising inorganic materials, a solvent and 
a blowing agent; a pre-expanded particle of a chlorinated 
vinyl chloride resin comprising inorganic materials and a 
solvent and a process for preparing the pre-expanded 
particle of the chlorinated vinyl chloride resin 
containing inorganic materials which comprises kneading a 
chlorinated vinyl chloride resin, inorganic materials and 
a solvent, pelletizing the kneaded mixture, impregnating 
a physical blowing agent into the resulting pellets and 
pre-expanding the pellets. The present invention makes 
it possible to be contained a large amount of inorganic 
materials in a chlorinated vinyl chloride resin by 
forming a uniform gel phase of the chlorinated vinyl 
chloride resin and the solvent and wrapping inorganic 
materials in the gel phase. A foamed article produced by 
employing pre-expanded particles of the chlorinated vinyl 
chloride resin containing inorganic materials has an 
excellent heat resistance, i.e. the foamed article 
generates little heat, produces little smoke and little 
poison gas and is hardly strained and cracked at burning, 
and further, has a large dimensional stability.
Patent EP-0260640-A3 (EP)
Title: Water-soluble viscosity increasing agent and detergent composition containing the same
IPC: C11D1/74
Filed: 1987-09-14
Abstract: A water-soluble viscosity increasing agent consisting essentially of: (i) an ester of a 40 to 400 moles ethylene oxide adduct of polyhydric alcohol and a C8-36 branched fatty acid, (ii) an ester of polyethylene glycol having average molecular weight of 2,000 to 20,000 and a C8-36 branched fatty acid, and (iii) a 40 to 400 mole ethylene oxide adduct of an ester of a polyhydric alcohol and a C8-36 branched fatty acid. The viscosity increasing agent can increase the viscosity of solutions of various surface active agents, while maintaining their stability and solubility in the solutions. When it is formulated to a detergent suitable for washing textiles, tablewares, human skins, hairs and the like, it can provide a detergent composition with a proper viscosity as well as a good detergency.
Patent EP-0279021-A3 (EP)
IPC: C02F1/52
Filed: 1987-09-15
Abstract: Das angegebene Verfahren dient zur Befreiung einer Lauge in 
Reinigungsmaschinen, insbesondere Flaschenreinigungsmaschinen, 
von gelösten und nicht gelösten Metallen, insbesondere Aluminium, 
bei gleichzeitig möglichst gering gehaltenem Laugeverlust und nicht 
erforderlichem Unterbrechen des Reinigungsvorgangs. Dabei wird 
ein Teilstrom der Lauge aus den Maschinen abgezogen und in einer 
Schmutzaustragungsanlage (1) von groben Verunreinigungen und nicht 
gelösten Metallen befreit. Der Lauge wird in Wasser aufgeschlämmter, 
ungelöschter Kalk zugesetzt, woraufhin die so behandelte Lauge 
in ein Reaktionsgefäß (4) gelangt, in dem in kurzer Zeit die 
gelösten Metalle, insbesondere Aluminium durch chemische Reaktion 
in eine ungelöste Form gebracht werden. Nach Passieren einer 
Flockungsmittelstation (2), wobei der Lauge ein polymeres 
Flockungsmittel zugeführt wird, wird das dann vorliegende Lauge-­
Schlammgemisch in eine Eindickanlage verbracht, in der der Schlamm 
weiter eingedickt wird, so daß sich die im oberen Teil des 
Eindickturms (5) ansammelnde, durch die chemische Reaktion 
regenerierte und aufkonzentrierte Reinlauge kontinuierlich abgezogen 
und nach Zwischenlagerung im Reinlaugebehälter (6) wieder der 
Reinigungsmaschine zugeführt wird. Der sich im Eindickturm (5) 
ansammelnde Schlamm wird an einer nachgeschalteten 
Flockungsmittelstation (7) vorbeigeführt, bei der dem Schlamm ein 
polymeres Flockungsmittel zugegeben wird. Der Schlamm wird 
anschließend in einem Siebcontainer (8) entwässert.
Patent EP-0261719-A3 (EP)
IPC: C09K11/07
Filed: 1987-09-09
Abstract: Thermochemiluminescent complexes of an adamantylidene­
adamantane 1,2-dioxetane and a cyclodextrin are non-volatile at 
the temperatures used to excite the thermochemiluminescence. The 
complexes can be encapsulated in immunosensitized microcapsules, 
e.g., lipsomes, to provide a labeled immunoreagent useful in 
immunoassay using thermochemiluminescent labeled immunoreagents.
Patent EP-0240290-A3 (EP)
IPC: G11B23/04
Filed: 1987-03-30
Abstract: The apparatus comprises 
a cartridge in which there is a frame (25) carrying 
tape head cleaning means in the form of a spindle (42) 
carrying a foam sponge cleaning roller (44). For 
reciprocating the tape head cleaning means against a 
tape head in use of the apparatus, the frame is movable 
by any one of first, second and third rotatable shafts 
(37, 38, 39) in the cartridge. The shafts are coupled 
with the frame and rotation of any one of them about 
its longitudinal axis causes movement of the frame.
Patent EP-0253481-A3 (EP)
IPC: C05F17/02
Filed: 1987-05-29
Abstract: A composting plant comprises a series of side-by-side 
elongated silos (1, 2, 3, 4) with a turning device (F) movable 
lenthwise of a silo lifting composting material therefrom and 
transferring it to the adjacent silo. The turning device F com­
prises a flexible conveyor (5) extending over wheels at the top 
and bottom thereof so as to be capable of lifting material 
through a substantial height and flinging it back for deposition 
on a cross conveyor (6) which deposits it into an adjacent silo. 
Means are described for disabling the cross conveyor so that 
the lifted material can simply be returned, turned and aerated, 
into the same silo from which it has been lifted.
Patent EP-0269315-A3 (EP)
Title: Amine production
IPC: C07D307/52
Filed: 1987-11-11
Abstract: A process for producing 2-[[[5-(dialkylamino)alkyl-2-­
furanyl]methyl]thio]-ethane amine comprises reacting 
cysteamine or cysteamine hydrochloride containing free 
hydrogen chloride with 5-(dialkylamino)alkyl furfuryl 
alcohol. The product can be obtained in a high yield 
by carrying out the reaction at a temperature of from 
30° to 80°C.