baber/WOPTO huggingface dataset:
Patent FI-100789-B (FI)
Inventor: STAUBER HANS-ULRICH
IPC: B65H75/02
Filed: 1992-04-16
Granted: 1998-02-27
Abstract: The described storage device comprises at least one storage appliance with a gripper and a number of roll cores and is used for the storage of material as rolls, especially for storage of printed products in rolls. The gripper has a central element (10) which is attached to a transport appliance and which supports a gripper spider (20). Clamping arrangements (30) for clamping rolls (W) at their periphery and core carrier arrangements (40) for taking hold of individual empty roll cores (WK), or ones which have been loosely placed on top of one another, are arranged on the gripper spider (20). Roll carrier arrangements (50) which support the cores of clamped rolls can be arranged on the central element (10). The core carrier arrangements (40) are movable or pivotable in such a way that they can be moved away from the region of rolls to permit handling of the latter. The movements of the gripper parts are driven by linear drives and monitored by sensors, so that the gripper can operate fully automatically. The roll cores (WK) are essentially hollow cylinders, containing holding means (60) inside them, by which they are taken hold of by the core carrier arrangements (40) and the roll carrier arrangements (50). <IMAGE>
Patent FI-103891-B (FI)
Inventor: EVANS JONATHAN C
IPC: C07F7/08
Filed: 1993-12-17
Granted: 1999-10-15
Abstract: The novel organoboron reagent of the present invention is useful in the preparation of unsubstituted propargylic alcohols. This compound reacts with aldehydes and ketones cleanly to afford propargylic alcohols in excellent yields. Unsubstituted propargylic alcohols are important synthetic intermediates in the synthesis of a number of natural products. In addition, the novel organoboron reagent of the present invention also demonstrates diastereomeric selectivity when reacted with enatiomerically pure aldehydes.
Patent FI-120341-B (FI)
Inventor: WEICHERT ANDREAS
IPC: A61K31/155
Filed: 1994-08-25
Granted: 2009-09-30
Abstract: There are described ortho-substituted benzoylguanidines of the formula I <IMAGE>  in which:   R(1) is H, Hal, CN, NO2, (cyclo)alkyl, (O)(S)[NR(5)](CH2)b-(CF2)c-CF3,   R(5) is H, (C1-C4)-alkyl, -CdH2dR(6),   R(6) is cycloalkyl, (bi)phenyl(yl), naphthyl,  or   R(1) is -SR(10), -OR(10), -CR(10)R(11)R(12),   R(10) is -CfH2f-(C3-C8)-cycloalkyl, -(C1-C9)-heteroaryl or phenyl, R(11) and R(12) are defined as R(10) or are hydrogen, (C1-C4)-alkyl,  or   R(1) is naphthyl, (bi)phenyl(yl), (C1-C9)-heteroaryl,  or R(1) is -SR(13), -OR(13), -NHR(13), -NR(13)R(14), -CHR(13)R(15), -C[R(15)R(16)]OH, -C IDENTICAL CR(18), -C[R(19)]=CR(18), -[CR(20)R(21)]k-(CO)-[CR(22)R(23)R(24)]l,   R(13) and R(14) are -(CH2)g-(CHOH)h-(CH2)l-(CHOH)j-R(17),   R(17) is hydrogen, methyl, -(CH2)g-O-(CH2-CH2O)h-R(24), R(15) and R(16) are hydrogen, alkyl or, together with the carbon atom carrying them, cycloalkyl,   R(18) is phenyl, heteroaryl, (cyclo)alkyl,   R(19), R(20), R(21), R(22) and R(23) are hydrogen, methyl,   R(24) is H, (cyclo)alkyl, -CmH2m-R(18),   R(2) and R(3) are defined as R(1),   R(4) is alkyl, Hal, CN, -(CH2)n-(CF2)o-CF3,  and their pharmaceutically tolerable salts. Compounds I have no unwanted salidiuretic properties, but very good antiarrhythmic properties. They are outstandingly suitable as antiarrhythmic medicaments having a cardioprotective component for infarct prophylaxis and infarct treatment and for the treatment of angina pectoris, where they also preventively inhibit or greatly decrease the pathophysiological processes in the formation of ischaemically induced damage. Because of their protective actions against pathological hypoxic and ischaemic situations, the compounds of the formula I according to the invention, as a result of inhibition of the cellular Na<+>/H<+> exchange mechanism, can be used as medicaments for the treatment of all acute or chronic damage caused by ischaemia or illnesses primarily or secondarily induced thereby.
Patent FI-97740-B (FI)
Inventor: BAKER SAMUEL
IPC: D03D1/00
Filed: 1994-08-26
Granted: 1996-10-31
Abstract: PCT No. PCT/CA93/00075 Sec. 371 Date Oct. 24, 1994 Sec. 102(e) Date Oct. 24, 1994 PCT Filed Feb. 25, 1993 PCT Pub. No. WO93/17180 PCT Pub. Date Sep. 2, 1993A paper machine dryer fabric includes hollow thermoplastic monofilaments to replace at least a portion of the wefts, also known as cross-machine direction strands. Fabrics including such monofilaments may be either a woven fabric, or a spiral fabric. The deformable nature of the hollow monofilaments decreaes the air permeability of the fabric, and in the case of spiral fabrics, improves monofilaments retention within the helical coils between the hinge yarns. The hollow monofilaments have a solidity in the range of from about 60% to about 75%. A suitable thermoplastic is polyethylene terephthalate. Hollow monofilaments do not have the disadvantages of other deformable yarns, such as spun yarns, multifilament yarns or plied monofilament yarns, each of which tend to hold and entrap within their structure both water and foreign matter.
Patent FI-108303-B (FI)
Inventor: BOKSTROEM MONICA
IPC: D21B1/14
Filed: 1994-12-01
Granted: 2001-12-31
Abstract: PCT No. PCT/SE94/00074 Sec. 371 Date Mar. 7, 1995 Sec. 102(e) Date Mar. 7, 1995 PCT Filed Feb. 1, 1994 PCT Pub. No. WO94/18383 PCT Pub. Date Aug. 18, 1994A method of producing chemimechanical pulp, comprises the steps of grinding wood in a grinding mill housed in a grinding chamber, maintaining the chamber at an overpressure, spraying water onto the wood, and supplying oxygen and/or hydrogen peroxide via the spray water to the grinding chamber.
Patent FI-97946-B (FI)
Inventor: MACANDREW JOHN ALEXANDER
IPC: A61F6/18
Filed: 1994-12-15
Granted: 1996-12-13
Abstract: PCT No. PCT/FI95/00666 Sec. 371 Date Jun. 2, 1997 Sec. 102(e) Date Jun. 2, 1997 PCT Filed Dec. 5, 1995 PCT Pub. No. WO96/18365 PCT Pub. Date Jun. 20, 1996An inserter for the positioning of an intrauterine device in the uterus, which inserter includes a plunger, a handle attached to the plunger, a string for the removal of the IUD, a locking device to lock the string in such a way that the IUD remains immobile in relation to the plunger, and a protective tube around the plunger. The protective tube is arranged in relation to the plunger in such a way that it can be pushed, at the forward end that goes into the uterus, past the plunger at distance (L) , which corresponds substantially to the length of the IUD assembled for insertion. The stop members ensure that the front edge of the protective tube is stopped in a configuration in which the hemispherical tips of the wings of the transverse member of a T-shaped IUD remain partly uncovered by the protective tube, but the wings nevertheless remain pressed against each other.
Patent FI-114549-B (FI)
Inventor: DICKENS JONATHAN PHILIP
IPC: C07D317/30
Filed: 1995-01-20
Granted: 2004-11-15
Abstract: Compounds of formula (V) : <CHEM> wherein R2 represents a group R6-A- wherein A represents a divalent straight or branched, saturated or unsaturated hydrocarbon chain of up to 6 C atoms which may be interrupted by an O or S atom, and R6 represents hydrogen or an optionally substituted phenyl, cycloalkyl or cycloalkenyl group; and the groups R12 and R13 are hydrogen, alkyl, phenyl or substituted phenyl; and activated derivatives thereof are useful as intermediates in the preparation of matrix metalloproteinase inhibitors..
Patent HU-190486-B (HU)
Title: Process for producing spiro /4./3+n// -2-azaalkane-3-carboxylic acid-derivatives and pharmaceutical compositions containing the same
Inventor: BECKER REINHARD
IPC: C07D209/54
Filed: 1983-03-25
Abstract: The invention relates to compounds of the formula I    <IMAGE>  (I) in which n denotes 1, 2, 3 or 4, R is alkyl, alkenyl cycloalkyl, aryl, optionally mono-, di- oder trisubstituted by alkyl, alkoxy, hydroxy, halogen, nitro, amino, alkylamino, dialkylamino or methylenedioxy, or indol-3-yl, R1 denotes an optionally protected radical of a naturally occurring amino acid HOOC-CH(NH2)-R1, R2 denotes hydrogen, alkyl or optionally nitro-substituted aralkyl, R3 denotes hydrogen, alkyl or cycloalkyl or optionally nitro-substituted aralkyl and X denotes 2 hydrogen atoms or 1 oxygen atom, their physiologically tolerated salts with acids and, if R2 and/or R3 denote hydrogen, with bases, a process for their preparation, agents containing these derivatives and their use as medicaments.
Patent HU-203064-B (HU)
Inventor: BARANYAI GABRIELLA
IPC: C02F3/18
Filed: 1985-04-16
Abstract: A találmány egyrészt eleveniszapos szennyvíztisztító kisberendezés a szennyvíz teljesoxidációs tisztításához, amelynek zárt tartálya (2) van, a tartály (2) válaszfalakkal (8,10) előlevegőztető térre (7), levegőztető térre (9) és utóülepítő térre (11) van osztva, az előlevegőztető térbe (7) egybevezető csőcsatlakozás (4) torkollik, az utóülepítő térben (11) vízelvezető bukósor (25) van, amelyhez egy kivezető csőcsatlakozás (5) csatlakozik, az előlevegőztető térben (7) és a levegőztető térben (9) levegőbefúvó porlasztótestek (16,18) vannak elhelyezve, amelyek levegőszállító egységre vannak kapcsolva, az utóülepítő térbe (11) uszadék fölöző egység (26) van építve, amelynek egy szakasza mamutszivattyúként (29) van kialakítva, és a kiömlőnyílása (31) a levegőztető térbe (9) nyílik, és a kisberendezésre az a jellemző, hogy az előlevegőztető tér (7) és a levegőztető tér (9) közötti válaszfal (8) átömlő éléhez (43) egy, a levegőztető térbe (9) nyúló, fogazott bukóéllel (13) ellátottvályú (14) csatlakozik, a levegőztető tér (9) és az utóülepítő tér (11) egy mamutszivattyúval (19) van összekötve, amelynek beömlőnyílása (20) a levegőz- tető tér (9) alja közelében, a kiömlőnyílása (21) az utóülepítő tér (11) tetején van, az utóülepítő teret (11) egy recírkulációs vezeték (42) köti össze az előlevegőztető térrel (7) a recírkulációs vezeték (42) beömlőnyílása (34) az utóülepítő tér (11) alja közelében van, végül az utóülepítő térben (11) levő vízelvezető bukósor (25) és az uszadék fölöző egység (26) beömlő éle (27) magasabban van mint az előlevegőztető térhez (7) csatlakozó vályún (14) kialakított bukóéi (13) és mint a recírkulációs vezeték (42) legmagasabb pontja (42a), de alacsonyabban van mint a levegőztető tér (9) és az utóülepítő tér (11) közötti válaszfal (10) felső éle és mint a szennyvíz szállító mamutszivattyú (19) nyomóágának (19b) a legmagasabb pontja (19c). A találmány másrészt eljárás is a szennyvíz eleveniszapos teljesoxidációs tisztításához, amelynek során a szennyvizet légbefúvásos előlevegőztető térbe (7) onnan légbefúvásos levegőztető térbe (9), végül utóülepítő térbe (11) vezetjük. (1. ábra) A találmányra az 1. ábra jellemző. A leírás terjedelme: 4 oldal, 2 ábra  HU 203 064 A 1. ábra -1-
Patent HU-180617-B (HU)
Title: Process for producing 1,2-bis-bracket-nicotinamido-bracket closed-propane,salts and pharmaceutical compositions containing them
Inventor: MORI TAKASHI
IPC: A61P9/10
Filed: 1980-11-21
Abstract: Novel compound, 1,2-bis(nicotinamido)propane and its pharmaceutically acceptable salts, a process for preparing the same and a pharmaceutical composition containing the same as an active ingredient are disclosed. 
     The compound acts to prevent or spasmolyse cerebral vasospasms, to prevent cerebral apoplexy and to lower the lipoperoxide level in blood.
Patent HU-197653-B (HU)
Inventor: KOMAR AGOSTON
IPC: A01D46/24
Filed: 1985-08-12
Abstract: A találmány eszköz, különféle gyümölcs szedésére, amely különböző hosszúságú hordozható nyélre erősített kosárból, a kosáron rögzített ollósán elrendezett vágószerkezetből áll és a találmány lényege, hogy a nyélre (4) nyitott fém kosár (1) van erősítve, és átlátszó hálófonattal, filc lemez béléssel van ellátva, míg vágószerkezete a fém kosár (1) szedőoldalán sorban elrendezett vágó ujjak (18) és azok előtt elmozdítható hajlított himba (7) és azon kiképzett vágóéi (6) révén van kialakítva. Továbbá a vágószerkezetének himbaszárán (19) furaton keresztül (21), vezérlő huzal (22) van csatlakoztatva, míg a fém kosár (1) a nyélre (4) csatlakozó szilárd részhez sarokmerevitők által van rögzítve.  -1-
Patent HU-212503-B (HU)
Title: Method and pipe structure for placing sludge originated from thick sludge technology at coal-firing power plants
Inventor: KAMARAS BELA
IPC: B29D23/00
Filed: 1989-06-28
Abstract: The settling basin is delineated by an outer dyke, then subdivided by inner dykes into section. Pipelines are routed to these sections, and the slurry is deposited in layers and allowed to harden. - Fresh layers are added when possible. A new feature of the pipelines is that they are of polyester material, with a 5% by volume filling material (power station fly-ash) and in some cases glass fibre reinforcement
Patent HU-214894-B (HU)
Title: Device for the addition of casting agents to the surface of a melt in a continuous casting die
Inventor: SMETS HANS-FRIEDRICH
IPC: B22D11/10
Filed: 1991-05-17
Abstract: PCT No. PCT/DE91/00398 Sec. 371 Date Jan. 11, 1993 Sec. 102(e) Date Jan. 11, 1993 PCT Filed May 17, 1991 PCT Pub. No. WO92/00819 PCT Pub. Date Jan. 23, 1992.A pulverulent casting auxiliary (6) is removed from a supply tank (1) in the fluidized state and conveyed through a screw conveyor (10) via a continuous-casting mold (12). At the end of the screw conveyor (10) a return line (30) is provided via which the quantity of casting auxiliary (6) not removed at the removal points (19) disposed over the bath surface (18) is returned into the supply tank (1) in a circulating manner.
Patent HU-202736-B (HU)
Inventor: BANERJEE CHANDRA KUMAR
IPC: A24D1/22
Filed: 1986-08-25
Abstract: Die Erfindung betrifft eine Einrichtung zum Erzeugen von tabakaehnlichen Aerosolen. Es sollen bedeutende Aerosolmengen sowohl am Anfang als auch beim weiteren Rauchvorgang erzeugt, jedoch keine bedeutende thermische Degradation des aerosolerzeugenden Mittels verursacht und das Vorhandensein von Produkten der Pyrolyse oder unvollstaendigen Verbrennung vermieden werden. Dies wird erreicht durch ein entzuendbares Brennstoffelement (10; 24), ein physikalisch getrennt angeordnetes aerosolerzeugendes Mittel (12) mit einem aerosolbildenden Stoff; und ein tabakhaltiges Material, das zumindest teilweise das physikalisch getrennt aerosolerzeugende Mittel (12) umschlieszt. Fig. 1{Rauchware; Aerosol; Tabakrauch; Brennstoffelement; Mittel, aerosolerzeugend; Substanz; Waermeaustauschbeziehung; Element, waermeleitend; Laengsdurchgang; Tabakfuellung Mundstueck}
Patent HU-192760-B (HU)
Title: Process for preparing 4-/n-oxido-pyridyl/-1,4-dihydro-pyridine-3,5-dicarboxylic acid derivatives and pharmaceutical compositions containing thereof
Inventor: ZIMMERMANN MARKUS
IPC: C07D491/04
Filed: 1982-12-29
Abstract: The present invention relates to novel N-oxide compounds that have cardiovascular properties, especially antihypertensive activity, and that correspond to the formula    <IMAGE>  (I)  in which Py represents an unsubstituted or substituted N-oxidopyridyl radical, R1 represents hydrogen or unsubstituted or substituted lower alkyl, one of the radicals R2 and R3 represents lower alkyl and the other represents hydrogen; lower alkyl; lower alkyl containing free, etherified or esterified hydroxy, oxo, functionally modified carboxy or free or substituted amino or imino; functionally modified carboxy; or free or substituted amino, it being possible for an amino group R2 or R3 to be bonded to a lower alkyl radical R1 or, if R2 or R3 represents, for example, hydroxy-lower alkyl, for this hydroxy-lower alkyl, together with the adjacent acyl radical Ac1 or Ac2, to form a 2-oxa-1-oxo-lower alkylene radical, the carbonyl group of which is bonded to the 3- or 5-ring carbon atom of the 1,4-dihydropyridine ring, and each of the groups Ac1 and Ac2  represents, independently of the other, the acyl radical of an acid, and salts of compounds of the formula I having salt-forming groups, processes for the manufacture of these compounds, the use of these compounds and their salts, and pharmaceutical preparations which contain these compounds and salts, as antihypertensive agents and coronary dilators for the treatment of cardiovascular conditions, such as hypertonia, vascular constrictions, Angina pectoris and cardiac insufficiency.
Patent HU-192640-B (HU)
Inventor: HARGITAI MIKLOS
IPC: H01J61/32
Filed: 1984-12-18
Abstract: Ziel und Aufgabe der Erfindung bestehen darin, den Partialdruck des Quecksilberdampfes auf einem optimalen Wert zu halten, um den maximal erreichbaren Lichtstrom zu realisieren. Die Erfindung betrifft eine Gasentladungslampe, deren Entladungsgefaess aus mindestens zwei, parallel verlaufenden geraden Rohrstuecken besteht, die miteinander mit einer Rohrverbindung verbunden sind, wobei an dem einen Ende stromzufuehrende Elektroden vorgesehen sind. Die erfindungsgemaesse Loesung ist dadurch gekennzeichnet, dass die Kaltkammern bildenden Enden der geraden Rohrstuecke von der Rohrverbindung her in Richtung der Laengsachse des Entladungsgefaesses hervorragen, wobei das Mass des Vorsprungs t(0,150,6) D betraegt, wo D den Durchmesser des geraden Rohrs bezeichnet. Das Verfahren ist dadurch gekennzeichnet, dass der Mittelteil eines auf Mass geschnittenen Glasrohrs bis zum Erweichungspunkt erhitzt und durch geringes Zusammenpressen der beiden Rohrenden gestaucht wird, wonach das Glasrohr in U-Form gebogen und in eine Kokille gelegt wird; durch Gaseinblasen wird das U-foermige Glasrohr auf das Format der Kokille geformt. Fig. 1
Patent IT-1192522-B (IT)
Inventor: ELSNER BERTRAM F
IPC: B65C3/02
Filed: 1982-11-04
Granted: 1988-04-20
Abstract: A roll-wrapping apparatus and method where rolls are wrapped with an envelope of heat-shrink plastic film with a label positioned between the envelope and roll and electrostatically bonded to the film. The bond prevents misalignment of the label prior to heat shrinking of the film onto the roll.
Patent LT-3870-B (LT)
Title: Diastereomers of 3-cefem-4-carboxylic acid 1-(isopropoxy-carbonyloxy)ethyl ester, process for preparingthereof, antibacteric preparations based on same and process for preparation thereof
Inventor: FISCHER GERD
IPC: A61K31/545
Filed: 1993-11-30
Abstract: The described diastereoisomers, i.e. I formula (6R, 7R)-7-[2-(2-aminotiazole-4-il)-2-(Z) - methoxyimino) acetamide]-3-(methoxymethyl)-3-cephem-4-carboxylic acid diastereoisomers, are resorbed in the intestines<IMAGE>(I) and their physiologically proper salts and the diastereomerically pure salts of the compounds of the II formula<IMAGE>(II) where HX is monobasic or a multi-basic acid and X is an inorganic or organic physiologically proper anion. The production method of these compounds differs only by the fact that pouring the solution of 1 is equivalent of the formula I mix of diastereoisomers with a HY acid 0.2-2 equivalent in the beginning a less soluble formula IV diastereoisomer is precipitated and filtered and then a more soluble formula IV diastereoisomer is precipitated from a filtrate. Besides that, the HY acid in consecutive stages may be uniform or different and various HY acids may be added in any order. The produced salts in case of need are cleaned additionally by crystallisation.
Patent LV-10423-B (LV)
Title: New bht ether compounds and their use as hypolipidemic and antiatherosclerotic drugs
Inventor: DR GOLD MARKUS R
IPC: A61K31/05
Filed: 1993-03-11
Abstract: The pharmaceutically active BHT-ω pyridine ethers with formula<IMAGE>where -3-Pyr is<IMAGE>m - 1, 3;if m - 1, sum = 6-9;if m - 3, sum = 5-11;in total (sum) = [m+n+1(for oxygen)], where bonding between 2 carbon atoms in the (CH2)n part right next to the pyridine ring is single, double or triple; pharmaceutically compatible with them salts with incorporated acids; pharmaceutical compositions containing them; and treatment method for lipidemia and atherosclerosis.
Patent LV-12548-B (LV)
Title: Turbo-pump
Inventor: ORBIDANS JAZEPS
IPC: F04D29/22
Filed: 1999-03-26
Abstract: The offered turbo-pump is shown in fig.1. It consists of guide apparatus (1) fixed in stator and shaft (2) supported in bearings. Said shaft is provided with two blading sets, e.g., of propeller-type, and blade rim (4) of pump, e.g., with centrifugal rim. Every blading set is provided with its own water suction pipe (6) in turbine section and is provided with spiral case in pump section. Direct joint of turbine with pump's rotor decreases hydraulic and mechanical losses of power, as well as mass and specific metal content, likewise it increases pump efficiency and operate reliability. The lay-out diagram of the offered hydraulic unit is shown in fig.2 where the following designations are used: 9 -turbine-wheel of blade-type, 10 - water guide apparatus, 11 - rolling element bearing, 12 - hollow drive shaft, 13 - bearing unit, 14 - belt pulley of wedge-like belt, 15 - housing, 17 and 18 - bearings, 19 - control bar.
Patent MX-171288-B (MX)
Title: Metodo para fabricar un articulo metalico moldeadoprocedimiento para la produccion de articulos mold. eados metalicos
Inventor: WILKINS PHILIP SIMON ARTHUR WI
IPC: B22C9/04
Filed: 1986-11-28
Abstract: La presente invención se refiere a método para fabricar un articulo metálico moldeado caracterizado erizado porque comprende las etapas de: proporcionar un patrón destuctible in situ; empotrar el patrena no aglomerada, la cual se selecciona del grupo consistente de arena de zircon y otro material parial particulado adecuado para fabricar un molde;  densidad en masa que cae en el rango de 2 a 3 g/c densidad en masa que cae en el rango de 2 a 3 g/c dentro del cual se define una cavidad de moldeo, que comprende al menos una forma de molde, la cual está incluida en el patrón; alimetar el metal fundido, seleccionado del grupo consistente en aluminio y aleaciones del mismo, al interior de la cavid una pared principal de la misma, teniendo una cona cavidad para formar el articulo metálico; interrumpir la alimentación de metal a la cavidad; y separar el articulo metálico de la cavidad.          una aleación de aluminio LM25, una parte del artículo moldeado, resultante de la forma de molde, se desplazaría al menos 5 por ciento de su posición de diseño, en relación a la parte más cercana del artículo moldeado, definido por la pared principal; alimentar el metal fundido seleccionado el grupo consistente de aluminio y aleaciones del mismo dentro de la cavidad; permitir que dicho metal solif¡que dentro de la cavidad para formar un artículo; interrumpir la alimentación de metal a la cavidad; y separar el artículo formado de la cavidad.
Patent MX-166012-B (MX)
Inventor: THOMPSON ROGER ALLEN
IPC: B29L9/00
Filed: 1987-03-02
Abstract: A laminating device for laminating a continuous web of paper material to a continuous web of film material for forming a continuous web of laminated composite material at a laminating nip. Apparatus for dividing the paper web into at least two segregated tension zones upstream of the laminating nip and for dividing the composite web into at least two segregated tension zones downstream of the laminating nip are described. Control systems for monitoring and maintaining the tension in each tension zone at different, preset values, are also described.
Patent NO-157186-B (NO)
Inventor: HARTMANN JUERGEN
IPC: D21H17/43
Filed: 1980-01-25
Abstract: A process for the manufacture of paper having a high dry strength and a low wet strength, by treating the surface of the paper with an aqueous solution of an alkali metal and/or alkaline earth metal salt of a polymer of (a) from 91 to 100% by weight of acrylic acid and/or methacrylic acid and (b) from 0 to 9% by weight of acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, vinyl acetate, maleic anhydride, diisobutylene, an ester of acrylic acid and/or an ester of methacrylic acid, which has a viscosity of from 5 to 100 mPas in 2% strength aqueous solution at 20 DEG  C., and drying the impregnated paper. The polymer is generally employed in an amount of from 1 to 4% by weight, based on dry paper, and increases the dry strength of the paper without substantially increasing the wet strength.