baber/WOPTO huggingface dataset:
Patent NO-161110-B (NO)
Inventor: REDMOND SANFORD
IPC: B65D75/58
Filed: 1983-10-05
Abstract: A dispenser package (10, 100) for flowable substances of the type where the flowable product is contained within a flexible pouch (22) adhered to a relatively stiff material (12) and may be opened along a fault line (24) or cut pattern scored in the relatively stiff material with one hand by folding the stiff ends towards one another into a "V" shape containing one or more dimples, pyramidal shapes (26) or other protrusions on the fault line (24) or fault area. The protrusions (26, 40, 52, 54, 56) not only increase and concentrate the stress forces, so that even very tough, high barrier materials may be used in constructing the package and will rupture at the protrusions by the aforesaid folding motion, but also control both the aperture shape and flow direction of the flowable substance as it is dispensed. The ability to make the package of tough materials enables the package to contain substances under pressure which subsequently will be dispensed. A sponge-like material (65, 70) also may be compressed within the package shaped so that a ' portion (66) will project from the package on opening for use as a swab for application of the contents.
Patent NO-163037-B (NO)
Title: Brannroer.
Inventor: HAELSSIG ANDREAS
IPC: F42C15/18
Filed: 1986-05-16
Abstract: Et brannrør med en rotor (19) som inngår i tennings-kjeden, skal utformes slik at man får sikker tenning også ved flatt anslag eller sideanslag. Rotoren (19) er derfor opplagret på en bærer (11) som er anordnet med mulighet for aksial forskyvning. I rotorens (19) armerte stilling kan bæreren (11) utføre en aksial bevegelse. Det forefinnes radielt bevegelige legemer (8) som ved tverrkrefter virker på bæreren (11) i aksialretningen, hvorved tenning kan skje.
Patent NO-167856-B (NO)
Inventor: HATFIELD W ROBERT
IPC: C22B7/00
Filed: 1986-10-10
Abstract: Platinum lost from a catalyst gauze in a nitric acid plant is recovered using a recovery gauze placed immediately downstream of the catalyst gauze. The recovery gauze consists of palladium or an alloy comprising a major proportion of palladium, and the mesh size and wire diameter of the recovery gauze are chosen such that the predicted recovery gauze cycle length is from 0.9 to 1.1 times the catalyst gauze cycle length.
Patent NO-175913-B (NO)
Inventor: MATTSSON MICHAEL
IPC: E21B10/52
Filed: 1986-10-10
Abstract: The invention relates to a drill bit (10) having saddles (12) for a number of roller cutters (16-38) having two along the circumference of the roller cutter extending rows (41,42) of cutting means, said rows (41,42) being displaced internally in the axial direction of the roller cutter. A saddle (12) and adherent roller cutter (20) are so designed that the roller cutter is reversibly mountable in the saddle (12). The rows (41,42) of cutting means are locaed on each side of the transverse symmetry plane (45) of the roller cutter (16-32) . The distance (B) of the first row (42) is bigger than the distance (A) between the second row (41) and the symmetry plane (45) . The rows (41,42) of cutting means of a roller cutter (20) are arranged to move along a first series of circles (46,47) when the roller cutter (20) is mounted in a first position in its saddle (12) and along a second series of circles (48,49) when the roller cutter (20) is mounted in a reversed position in the saddle (12) in relation to said first position.
Patent NO-171825-B (NO)
Inventor: BLANKENSHIP ERNEST BAYNE
IPC: F23G5/10
Filed: 1989-10-25
Abstract: The incinerator toilet has an incinerator chamber with an opening formed therethrough in which is located an electrical heating coil. A bowl is located above the chamber and a removable pan located below the chamber. The chamber is formed by inner and outer walls with a catalyst container being integral therewith and extending radially outward to an increased depth. A heat activated catalyst is located in the catalyst chamber and perforations are formed through the inner and outer walls of the catalyst chamber. A collection chamber is located outwardly of the catalyst chamber and has a lower outlet to which is coupled an exhaust device for drawing gases from the incinerator chamber through the heat activated catalyst and collection chamber. A baffle is located in the collection chamber and is coupled to its lower wall and extends upward to a position above the outlet of the collection chamber. A top wall is secured above the catalyst chamber and the collection chamber and has an opening with a removable lid in fluid communication with both the catalyst chamber and the collection chamber.
Patent NO-173995-B (NO)
Inventor: GLAMKOWSKI EDWARD J
IPC: A61P25/04
Filed: 1990-03-26
Abstract: This invention relates to 1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b] indol-5-ol carbonate esters of the formula <CHEM>  where R is lower alkyl, cycloalkyl, aryl, aralkyl or <CHEM> X is hydrogen or halogen; the pharmaceutically acceptable acid addition salts thereof and where applicable to the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as analgesic agents.
Patent RS-51886-B (RS)
Inventor: BECKNELL NADINE C
IPC: A61K31/407
Filed: 2004-12-23
Abstract: NOVI FUZIONIRANI PIROLOKARBAZOLI. Jedinjenje, naznačeno time što ima strukturu formule IIili njegova farmaceutski prihvatljiva so, gde je prsten B zajedno s atomima ugljenika na koje je vezan, izabran između:(a)	fenilenski prsten u kojemu se od 1 do 3 atoma ugljenika mogu zameniti atomima azota; i(b)	5-člani aromatski prsten u kojemu se od 1 do 2 atoma ugljenika mogu zameniti atomima azota; iQ je CH2CH2;A1, A2 je H, H; i B1, B2 zajedno formiraju =O;R1 je nezavisno izabran između: H, C(= O)R1a, OR1b, C(=O)NHR1b, NR1cR1d, te proizvoljno supstituisan C1-C8 alkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R1a je nezavisno izabran između: proizvoljno supstituisan C1-C8 alkil, proizvoljno supstituisani C6-C12 aril i proizvoljno supstituisan hetero C5-C10 aril, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R1b je nezavisno izabran između: H i proizvoljno supstituisan C1-C8 alkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R1c i Rld su svaki nezavisno izabrani između: H i proizvoljno supstituisan C1-C8 alkil, ili zajedno s atomom azota za kojega je vezan formira proizvoljno supstituisan hetero C3-C10 cikloalkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R2 je izabran između: H, C(=O)R2a, C(=O)NR2cR2d, SO2R2b, CO2R2b, (C1-C8 alkilen)-OC(=O)-(C1-C8 alkilen)C02R'1 proizvoljno supstituisan C1-C8 alkil, proizvoljno supstituisan C2-C8 alkenil, proizvoljno supstituisan C2-C8 alkinil, proizvoljno supstituisan C3-C10 cikloalkil, te proizvoljno supstituisani hetero C3-C10 cikloalkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R2a je nezavisno izabran između: proizvoljno supstituisan C1-C8 alkil, proizvoljno supstituisani C6-C12 aril, OR2b, te NR2cR2d, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R2b je izabran između: H i proizvoljno supstituisan C1-C8 alkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;R2c i R2d su svaki nezavisno izabrani između: H i proizvoljno supstituisan C1-C8 alkil, ili zajedno s atomom azota za kojega je vezan formira proizvoljno supstituisan hetero C3-C10 cikloalkil, gde su navedeni nezavisni supstituenti jedna do tri R10 grupe;bar jedan od R3, R4, R5 i R6 su izabrani između: (C1-C8 alkilen)xOR13, C(=O)R13,(CH2)pOR22, O-(C1-C8 alkilen)-R27, OCH(CO2R18)2, OCH$(CH2)POR20]2, C(=O)-(C1-C8 alkilen)-R25, NRnR32, NRnR33, (C1-C8 alkilen)-NR18R19, C(R12)=N-R18, CH=N-OR13, C(R12)=N-OR20, C(R11)=N-NR11C(=O)NR14AR14B, C(Rn)N=NRuSO2R18, OC(=O)NRu(C1-C8 alkilen)-R26, OC(=O)$N(CH2CH2)2N]-R21, NRuC(=O)OR23, NR11C(=O)S-R18, NR11C(=O)NR11R23, NR11C(=S)NR11R23, NR11S(=O)2N(R15)2, NR11C(=O)NRU(C1-C8 alkilen)-R24, NR11C(=O)N(R11)NR16AR16B, supstituisani C1-C8 alkil, gde je jedan od supstituenata spirocikloalkilna grupa, proizvoljno supstituisani (C1-C8 alkilen)x-C3-C10 cikloalkil, te proizvoljno supstituisani -(C1-C8 alkilen)x-hetero C3-C10 cik
Patent YU-46913-B (YU)
Inventor: LAMERANT J M
IPC: C01G15/00
Filed: 1988-06-01
Abstract: POSTUPAK EKSTRAHOVANJA I PRECISCAVANJA GALIJUMA, posle etape razlaganja, u kome se koncentracija galijuma nalazi izmedju 150 mg i 500 mg po litru rastvora, koncentracija celokupnog natrijumovog luga, izrazena kao Na2O iznosi izmedju 100 g i 220 g po litru rastvora, a koncentracija rastvorenog Al2O3 iznosi izmedju 50 g i 130 g po litru rastvora, koji se sastoji u vezivanju galijuma za poroznu, apsorpcionu smolu, impregniranu sredstvom koje vrsi ekstrahovanje, a zatim u eluiranju galijuma u kiseloj sredini, kako bi se stvorila rastvorna galijumova so, koja se posle preciscavanja i koncentrovanja redukuje do metalnog galijuma, naznacen time, sto je porozna, absorpciona smola, koju cini hidrofobna polistirenska smola nepolarnog karaktera, impregnirana 7-alkil-8-hidroksihinolinom, u kolicini od 150 do 400 g na litar suve smole, pri cemu se u to ekstrakciono sredstvo, prethodno rastvoreno u isparljivom rastvaracu, dodaje povrsinski aktivno sredstvo u kolicini od 5% do 15% njegove mase, a posle otparivanja rastvaraca i hidratacije impregnisana smola je spremna za upotrebu, pa se za nju vezuje galijum, dovodjenjem pomenute smole u kontakt sa rastvorom natrijum-aluminata, tokom 4 do 13 sati, na temperaturi izmedju 30°C i 60°C, a prednost je oko 50°C, koji cirkulise u kolicini, na sat, koja je jednaka 2 do 10 puta vecoj od zapremine smole sa kojom je u dodiru, sto se posle pranja smole sa kolicinom vode koja odgovara 1 do 3 puta vecoj zapremini od njene zapremine, galijum koji je vezan za smolu ponovo rastvara dvokratnim eluiranjem, na oko 50°C, jakom kiselinom, najpogodnije sumpornom kiselinom, prvo koncentracije izmedju 0,7 N i 1,2 N, a zatim koncentracije izmedju 4 N i ' N, sto se tako eluiran kiseli rastvor galijuma, koji sadrzi od 1 do 20 g galijuma na litar, a kao glavne necistoce u rastvoru Al, Fe, Zn i Na, predneutralise sa pH=2, pomocu krecnog mleka ili kalcijum-karbonata, a prema kolicini sumporne kiseline, da bi se stalozio kalcijum-sulfat, koji se uklanja cedjenjem, sto se rastvor iz koga je uklonjena slobodna sumporna kiselina zatim mesa sa reciklovanim rastvorima, iz kojih je delimicno izdvojen galijum, a koji dolaze iz prethodnih faza preciscavanja, koncentrovanja i elektrolize, pa se neutralise natrijum-hidroksidom u prisustvu natrijum-tiosulfata, da bi se na oko 60°C istalozio galijum-hidroksid, koji se odvaja dekantriranjem i/ili filtriranje, pa se ponovnim rastvaranjem u HCl prevodi u galijum-hlorid, sto se zatim kiseli rastvor galijum-hlorida dovodi u kontakt, na temperaturi okoline, sa organskim rastvorom koji se sastoji od mesavine tiobutilfosfata, u kolicini od 25 mas.%, alkohola sa 8 do 13 C atoma, u kolicini od 10 mas.% i od teskog aromatskog rastvaraca, u kolicini od 65 mas.%, a sve do zasicenja organskog rastvora galijumom, sto se taj rastvor zatim eluira vodom da bi se dobio organski rastvor koji se moze regenerisati, kao i vodeni eluat sa visokom koncentracijom galijum-hlorida, sa pH, namenjen elektrolizi sa katodom od tecnog g
Patent YU-48658-B (YU)
Inventor: DR MIJAILOVIC ZDRAVKO
IPC: A61M5/14
Filed: 1988-12-22
Abstract: Antiembolijski ventil za aparate za infuziju i transfuziju, naznačen time, što je sud ventila (4), izveden u obliku šuplje zarubljene kupe, čija je baza okrenuta na gore i predstavlja poklopac (5), kroz čije središte prolazi cev (3) za dovod infuzione ili transfuzione tečnosti (10), tako da se kraći kraj cevi (3) nalazi ispod poklopca (5), a gornji duži kraj izlazi upravno iz poklopca (5) i za njega je slepljena cev za dovod vazduha (2) čiji je donji kraj slobodan dok je gornji kraj ove cevi spojen sa cevi (3), gde su obe cevi koso zasučene i pri čemu je drugi kraj suda ventila (4) u obliku levka na čijem se dnu nalazi okrugli otvor, koji na svom obodu ima postavljen gumeni prsten (8), na koji kada u sudu ventila (4) nema tečnosti pada šuplja ventil loptica (6) i zatvara ga.
Patent YU-48218-B (YU)
Title: Derivati karbamoila
Inventor: JACOB R T
IPC: A61K31/40
Filed: 1990-12-10
Abstract: Postupak za proizvodnju jedinjenja iz bilo kojeg od zahteva 1-5, naznačen time, što obuhvata: (A) reakciju odgovarajuće 3-metoksi-4-/1-metil-5(2-metil-4,4,4-trifluorbutilkarbomil) indol-3-11-metil/benzoeve kiseline sa 2-metilbenzolsulfonamidom uprisustvu sredstva za dehidrataciju, ili reakcije reaktivnog derivata pomenute ben-zoeve kiseline sa 2- metilbenzolsulfonamidom, ili sa njegovom soli; ili (B) aciliranje 2-metil-4,4,4-trifluorbutilamina sa 4-(5-karbok-si-1-metilindol-3-ilmetil)-3-metoksi-N-(2-metilfenilsulfonil)b enzamidom u prisustvu sredstva za dehidrataciju ili sa reaktiv-nim derivatima pomenutog karboksiindola; pri čemu ako se zahteva jedinjenje u suštinski enantiomerno čistom obliku, pomenuti postupak se po želji izvodi uz korišćenje suštinski enantiomerno čistog polaznog materijala; posle čega alter-nativno, ako se zahteva jedinjenje u suštinski enantiomerno čistom obliku, odvajanjem optički aktivnog oblika koristeći neki uobičajeni postupak; a zatim kada se zahteva farmaceutski prihvatljiva so, reakciju 3-metoksi-4-/1-metil-5-(2-metil-4,4,4-trifluorbutilkarbomil)-indo 1-3-ilmetil/-N-(2-metilfenilsul-fonil)benzamida sa pogodnom bazom, koja daje fiziološki prihvatljivi katjon. Prijava sadrži još 3 nezavisna i 4 zavisna zahteva.
Patent ZA-834382-B (ZA)
Title: Emulsion based on epoxy resin/polyammonium salt and process for preparation thereof
Inventor: WEISS JOERN-VOLKER
IPC: C04B41/63
Filed: 1983-06-15
Abstract: An epoxy resin-polyammonium salt emulsion is based on a liquid epoxy resin, a latent curing agent, an emulsifier, and water, wherein (a) the emulsifier is a primary aliphatic alcohol of 12-14 carbon atoms, an adduct thereof with up to 5 ethylene oxide groups, or a carboxylic acid polyglycol ester, and (b) the latent curing agent is the reaction product obtained by complete neutralization of oxalic acid with a polyamine of the formula H2N-CH2-CH2-NH-hd xH  wherein X=2, 3, or 4 or with a reaction product, containing amino groups, of a reaction of this polyamine with fatty acids.
Patent ZA-837562-B (ZA)
Title: Separator for pneumatic single grain sowing machines
Inventor: GUGENHAN HEINRICH
IPC: A01C7/04
Filed: 1983-10-11
Abstract: In a separator for pneumatic single grade sowing machines, a supporting plate (1) is provided to which a plurality of fingers (8; 28; 41) are pivotally connected. One end of the fingers forms an effective area section (12) which engages passing seed grains clinging to suction holes (6) of an apertured plate 4. Each finger (8; 28; 41) is engaged by a respective spring (13; 20; 23; 30; 44) which acts on the fingers (8; 28; 41) and thus on their effective area sections (12) against the direction of rotation (10) of the apertured plate (4) (FIG. 1).
Patent ZA-851990-B (ZA)
Title: Synergistic herbicidal compositions
Inventor: GROENWOLD BARELD EGGE
IPC: A01N37/22
Filed: 1985-03-18
Abstract: Synergistic herbicidal activity is demonstrated by composition comprising aa mixture of (a) a trialkylsulfonium salt of N-phosphono-methylglycine having the formula (a) a herbicidally effective amount of a trialkylsulfonium salt of N-phosphonomethylglycine having the formula <CHEM> in which R is C1-C3 alkyl and n is 0 or 1, and (b) an herbicidally effective amount of a pyrrolidone compound of the formula X min  O <CHEM> in which X min  is hydrogen, chlorine or methyl; Y is hydrogen, chlorine, or bromine; Z is chlorine or bromine: R<1> is hydrogen, alkyl, acetyl, chlorine, bromine, fluorine, iodine, trifluoromethyl, nitro, cyano, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido or 3-methylureido; R<2> is hydrogen, alkyl, chlorine or trifluoromethyl; and R<3> is alkyl or hydrogen; in a pyrrolidone: N-phosphono-methylglycine weight ratio of from about 1:6 to about 4:1.
Patent ZA-865623-B (ZA)
Title: Process for preparing 2-acyl-3,4-dialkoxyanilines
Inventor: CONLEY RICHARD A
IPC: C07D265/20
Filed: 1986-07-28
Abstract: A process for preparing 2-acyl-3,4-dialkoxyanilines is described. The 2-acyl-3,4-dialkoxyanilines are useful intermediates in the preparation of 5,6-dialkoxy-4-alkyl-2(1H)-quinazolinones. The substituted quinazolinones are active as cardiotonic agents.
Patent ZA-898379-B (ZA)
Title: Process for preparing 63-carboxyamides of teicoplanin antibiotics
Inventor: MALABARBA ADRIANO
IPC: A61K38/00
Filed: 1989-11-03
Abstract: The present invention is directed to an improved process for preparing 63 carboxyamides of teicoplanin (eventually having <1><5>-N-alkyl substituents) by reacting a teicoplanin like compound with an activated ester forming reagent to give an ester function which is substituted by an amine, by contacting an excess of said amine in an organic polar solvent at a temperature comprised between 5 DEG C and 60 DEG C.
Patent ZA-899615-B (ZA)
Title: Fibrils
Inventor: MANDEVILLE W HARRY
IPC: B01J23/889
Filed: 1989-12-15
Abstract: The present invention relates to a a continuous process for producing carbon fibrils by decomposing a source of carbon at elevated temperatures in contact with a multivalent metal and recovering the fibrils formed thereby comprising the steps of introducing catalyst particles having a size of up to 400 µm (microns) and comprising at least one multivalent transition metal on a particulate substrate into a reactor heated to a temperature of 500°C to 1500°C, and recovering the fibrils formed thereby wherein said metal is present on said substrate as a multiplicity of discontinuous catalytic sites which, at least during fibril formation, have a size of 3,5 to 70 nm (35 to 700 Å) which size is measured by measuring the size of the transition metal particles recovered along with produced fibrils. This invention also relates to a reaction apparatus to be used for carrying out said process.
Patent ZA-909422-B (ZA)
Title: Cleaning composition
Inventor: RABONE KENNETH LESLIE
IPC: C11D3/10
Filed: 1990-11-23
Abstract: An aqueous shear thinning liquid abrasive cleaner composition containing detergent active contains soluble salt, part of which remains undissolved, e.g. to act as an abrasive. The undissolved salt is at least 40 % by weight of the composition and has a specified volume distribution diameter and span.
Patent ZA-949467-B (ZA)
Title: Device for inhalation
Inventor: HEROLD HEIKO
IPC: A61M15/00
Filed: 1994-11-29
Abstract: The inhalation device for inhaling a pulverulent, pharmacologically active medicament consists of a storage container (3) for the medicament (4), a manually activated dosing arrangement for preparing a separated quantity of inhalation substance which is taken up by the air current aspirated upon inhalation and is swirled, an air inlet channel (9), a swirl chamber (W), and a connection channel (8) between the swirl chamber (W) and the dosing arrangement, and with a mouthpiece channel leading out from the swirl chamber (W). The dosing arrangement in this case consists of a dosing drum (D) which has in its interior (5) a storage container (3) for the medicament. Furthermore, the air inlet channel (9) and the connection channel (8) are arranged in such a way that they run towards each other in a V shape. Thus, whenever a dosing procedure is carried out, a separated quantity of inhalation substance is made ready in a dome shape at the apex of the two air channels (8) and (9) running towards each other in a V shape. <IMAGE>
Patent ZA-951689-B (ZA)
Title: Process for the isolation of clavulanic acid and of pharmaceutically acceptable salts thereof from the fermentation broth of streptomyces sp P 6621 FERM P 2804
Inventor: CAPUDER EGIDIJ
IPC: A61K31/00
Filed: 1995-03-01
Abstract: A process for the isolation of clavulanic acid pharmaceutically acceptable salts thereof, such as potassium clavulanate, from the aqueous fermentation broth of a clavulanic acid-producing microogranism comprises the microfiltration of the broth without prior treatment.
Patent ZA-954814-B (ZA)
Title: Automated method and apparatus for hydrating soft contact lenses
Inventor: ANDERSEN FINN THRIGE
IPC: B29L11/00
Filed: 1995-06-09
Abstract: The present invention provides an automated apparatus, for hydrating a molded hydrophilic contact lens, comprising three robotic assemblies and a pick up unit for removing lenses from a mold, immersing the lens in a bath, removing the lens from the bath and transporting the lens to a further processing station.
Patent ZA-955831-B (ZA)
Title: Insecticide comprising gel formulations for vapor-producing systems
Inventor: NUEMANN HERMANN
IPC: A01N53/06
Filed: 1995-07-13
Abstract: Gel formulation (A) for evapn. systems to provide controlled and long-lasting release of insecticide, comprises at least one pyrethroid insecticide (I), at least one evaporation regulator (II), and an inorganic solid (III) as gelling agent. Specified (I) are 2,3,5,6-tetrafluorobenzyl (+)1R-trans-2,2-dimethyl- 3-(2,2- dichlorovinyl)cyclopropane carboxylate (Ia, esp.); and 2,2-dimethyl-3-(2-methylpropenyl)-cyclopropane carboxylic acid 2-methyl-3-propargyl-4-oxo-2-cyclopenten-1-one ester etc.. Esp. gel is present in a deep-drawn or cast container of plastic or metal, closed at the top with a fabric or foil that is permeable to volatile components.
Patent ZA-962169-B (ZA)
Title: Derivatives of beta-methoxy acrylic acid their preparation process and their use as pesticides
Inventor: LAUGRAUD SYLVAIN
IPC: A01N55/00
Filed: 1996-03-18
Abstract: PCT No. PCT/FR96/00544 Sec. 371 Date Dec. 4, 1997 Sec. 102(e) Date Dec. 4, 1997 PCT Filed Apr. 11, 1996 PCT Pub. No. WO96/32399 PCT Pub. Date Oct. 17, 1996A subject of the invention is the products of formula (I): in which: R1, R2 and R3, identical or different, represent a linear, branched or cyclic alkyl radical, an alkenyl or alkynyl radical, containing up to 8 carbon atoms, optionally substituted by one or more halogen atoms, an aryl radical optionally substituted by one or more halogen atoms, one or more hydroxyl radicals, one or more linear or branched alkyl radicals, optionally substituted by one or more halogen atoms, one or more O-alkyl or S-alkyl radicals optionally substituted by one or more halogen atoms, X represents a hydrogen atom, a halogen atom, an alkyl, alkenyl, alkynyl, O-alkyl, O-alkenyl, O-alkynyl, S-alkyl, S-alkenyl or S-alkynyl radical, optionally substituted by one or more halogen atoms and containing up to 11 carbon atoms, an aryl radical containing up to 14 carbon atoms, a C 3BOND N, NO2, NH2,  CO2 alk3 radical, alk1, alk2 and alk3, identical to or different from each other, representing an alkyl radical containing up to 8 carbon atoms, R4 represents one of the values indicated above for X with the exception of hydrogen.
Patent ZA-987141-B (ZA)
Title: Acrylamidase enzymes.
Inventor: HUGHES JONATHAN
IPC: C08F6/00
Filed: 1998-08-07
Abstract: Acrylamidase enzymes are provided which have acrylamidase activity at pH 4.0 which is at least 50% of their acrylamidase activity at pH 7.0. Such enzymes can be produced by the novel microorganisms Rhodococcus strains NCIMB 40889 and NCIMB 40755. Such enzymes and microorganisms can be used for reducing free acrylamide in polyacrylamides which are produced at low pH and in particular cationic and substantially non-ionic polyacrylamides.