baber/WOPTO huggingface dataset:
Patent SK-8494-A3 (SK)
Title: Endoles, method of their manufacturing and pharmaceutical preparations on their base
Inventor: BLAGG JULIAN
IPC: A61K31/404
Filed: 1992-07-20
Abstract: The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein Y is C1-C6 alkylene optionally substituted by C1-C6 alkyl; R is H, OH, halo, C1-C4 alkyl or C1-C4 alkoxy; R<1>, R<2>, R<3> and R<4> are each independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, OH, halo and CF3; one of R<6>, R<7> and R<8> is a group of formula (a) or (b), and the remainder, together with R<5> and R<9>, are each independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, halo and halo(C1-C4)alkyl; R<10> is COOH, COOR<11> or CONR<12>R<13>; R<11> is a biolabile ester-forming group; R<12> and R<13> are each independently selected from H and C1-C4 alkyl; R<14> is H, C1-C6 alkyl, C3-C7 cycloalkyl or aryl; and ''aryl'', used in the definitions of R<6>, R<7>, R<8> and R<14>, means phenyl optionally substituted by C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, OH, halo, CF3, halo(C1-C6 alkyl), nitro, amino, C2-C6 alkanamido, C2-C6 alkanoyl or phenyl: together with pharmaceutical compositions containing, processes for the preparation of and uses of, such compounds.
Patent CZ-49492-A3 (CZ)
Inventor: KULHANEK VENEK D T
IPC: A47B57/00
Filed: 1992-02-20
Abstract: Je založena na konstrukci spojovacích prvků (2) a základním
prvků (A,B,C,D) konstrukce. Vzájemnou kombinací
spojovacích prvků (2) a základních prvků (A,B,C,D)
konstrukce lze sestavit základní sestavy, které je možno
dále vzájemně propojovat. Vlastní konstrukci lze doplnit
různými typy skříněk, polic, plošin a jiným doplňků.
Patent CZ-93992-A3 (CZ)
Title: Process for preparing a catalyst suitable for catalysis of alkene, alkanoic acid and oxygen-containing gas reaction
Inventor: BARTLEY WILLIAM J
IPC: B01J23/58
Filed: 1992-03-30
Abstract: Increased activity catalysts, prepd. from alkenes, alkanoacid and oxygen comprising gas, do not exceed 0.3% Na content. This is achieved by using solium free ingredients, the sodium being removed by ion exchange or leac.
Patent CZ-39296-A3 (CZ)
Title: Stabilization process of power and heating plant light ash and slag
Inventor: BURES JAROSLAV ING CSC
IPC: B01D53/34
Filed: 1996-02-09
Abstract: A method of stabilising heating and power plant ash and clinker by mixing them with lime and adding water to the achieved mixture during which the ash and possibly the milled clinker with a maximum content of water of 3 % by weight  and a maximum particle size of 500 micrometers combine with the particular lime or/and hydrate of lime with a maximum particle size of 500 micrometers in a 95:5 to 98:2 weight ratio of ash and clinker to the lime or/and hydrate of lime and the achieved mixture is mixed for the period necessary to achieve the saturated homogenous distribution of the particles of the lime and/or hydrate of lime on the surface of the particles of ash and clinker, then the achieved homogeniser is mixed with 10 to 40 weight % of water according to the total weight of the dry homogenisate and the achieved mixture is mixed for period necessary to achieve a homogenous wet mixture. It is also possible to add clinker with a particle size greater than 500 micrometers and energo-gypsum. The ash can be used directly from the dry taking where it has a higher temperature than the surrounding temperature.
Patent SK-36798-A3 (SK)
Title: Multilayered web-type tissue product with an unembossed, substantially freely mobile inner layer; the production of the tissue product; and a device for use in its manufacture
Inventor: BERGER JOSEF
IPC: D21H27/40
Filed: 1996-09-20
Abstract: The disclosure pertains to a web-type tissue product with at least one unembossed substantially freely mobile middle layer, the layers of the tissue product being preferably joined to one another by join embossing common to those layers. The individual layers are smooth or provided with an embossed pattern extending substantially over the entire surface. The join embossing takes the form of embossed strips (4, 5) on both sides immediately adjacent to the edges (2, 3 ) of the multilayered web (1) and covering part of the web width (6). In a preferred embodiment, a number of pre-embossed outer layers (18, 20) are joined with a joining embossed pattern identical or similar in appearance to the layers' embossed pattern.
Patent SK-94396-A3 (SK)
Title: Reactive composition for gas cleaning containing hydrogen chloride and cleaning method of fume gases
Inventor: FAGIOLINI NILO
IPC: B01D53/68
Filed: 1995-01-12
Abstract: Solid powdered reactive composition for the purification of a gas containing hydrogen chloride, the said reactive composition comprising more than 98% by weight of sodium bicarbonate and less than 2% by weight of sodium monocarbonate and exhibiting a particle size distribution defined by an average particle diameter of less than 0.050 mm and a particle size slope of less than 5.The reactive composition finds an application in the purification of flue gases from the incineration of household waste.
Patent CH-657496G-A3 (CH)
IPC: G04B13/00
Filed: 1983-04-15
Abstract: A gear train mechanism for a watch comprising a plate (23, 24); a tubular member (14) mounted in said plate (23, 24); a gear train bridge (2); a seconds gear (7) which is rotatably mounted in the gear train bridge (2) and which is adapted to drive a seconds hand (not shown); a further gear (8) driven by the seconds gear (7); a centre gear (9) adapted to drive a minutes hand (not shown) and driven by the further gear (8), the centre gear (9) being provided with a support shaft (9b) which is rotatably mounted within the tubular member (14); a minute gear (20) driven by the centre gear (9); an hour gear (11) which is driven by the minute gear (20) and which is adapted to drive an hour hand (not shown), the hour gear (11) being rotatably mounted on the tubular member (14); and the centre gear (9) having an axial bore (9c) therethrough within which a shaft portion (7d) of the seconds gear (7) is rotatably supported at one region (7a) only. <IMAGE>
Patent CZ-106895-A3 (CZ)
Title: Azetidinone derivatives, process of their preparation and pharmaceutical composition containing thereof
Inventor: DOHERTY JAMES P
IPC: A61K31/445
Filed: 1993-10-26
Abstract: Substituted azetidinones of the general Formula (I) which have been found to be potent elastase inhibitors and thereby useful anti-inflammatory and antidegenerative agents, <CHEM>  wherein  R4 is (a) <CHEM>  b) <CHEM>  where Rx is carboxy  C1-6alkyl,  benzyloxycarbonylC1-3alkyl, or  t-butoxycarbonylC1-3alkyl,  wherein  Q is a covalent bond or <CHEM>  Y is   <CHEM>  or   <CHEM> or a covalent bond.
Patent CZ-136097-A3 (CZ)
Title: Discharge valve
Inventor: FROST DOUGLAS ROBERT DAVID
IPC: E03D1/14
Filed: 1995-10-23
Abstract: The invention provides an improved discharge valve comprising an upper housing (5, 101, 106), an upwardly movable main valve assembly (35) within the housing and forming with the upper part thereof a variable volume upper chamber (6), a restricted passage (9) between the upper chamber (6) and the exterior thereof, an outlet (19) leading down from the lower part of the housing, a seat (13) for the main valve assembly at the entry to the outlet (19) so that, in the lowered position of the main valve assembly, the outlet is blocked against ingress of fluid in which the device is immersed, and a pilot valve (2, 54, 92) actuable remotely from the housing (5, 101, 106) to put the upper chamber (6) in free communication with the outlet (19), the arrangement being such that, on such free communication being established, fluid escapes the upper chamber (6) and the change in relative pressures above and below the main valve assembly (35) causes the latter to unseat thereby permitting flow of the immersing fluid into the outlet (19) and its substantially complete discharge, the cessation of flow of the immersing fluid allows the main valve assembly (35) to revert to its seated position with the pilot valve (2, 54, 92) cutting off said free communication, and air penetrates the upper chamber (6) and on replenishment of immersing fluid a net downward pressure is created on the main valve assembly (35) to keep it seated, and wherein the pilot valve (2, 54, 92) has a hollow stem (2, 54, 92) communicating to atmosphere above the normal full set level (23) of fluid in the cistern (1), the main valve assembly (35) and the hollow stem (2, 54, 92) defining therebetween a hollow annulus (16).
Patent CZ-149299-A3 (CZ)
Title: Process of concurrent preparation of ethanol and isopropanol
Inventor: HAINING GORDON JOHN
IPC: C07C31/10
Filed: 1999-04-28
Abstract: This invention relates to a process for co-producing ethanol and isopropanol by hydrating a mixture of ethylene and propylene in the vapour phase in the presence of a catalyst composition comprising a heteropolyacid catalyst supported on a siliceous support. The process is characterised in that the hydration reaction of the mixed olefin feed is carried out under specific reaction conditions.
Patent CZ-152894-A3 (CZ)
Inventor: PALKOVIC JOZEF ING CSC
IPC: B60C27/12
Filed: 1994-06-21
Abstract: Sněhové řetězy jsou tvořeny každý dvěma, ochrannými obaly (2) opatřenými pružnými neuzavřenými oblouky (1), vzájemně propojenými nejméně třemi záběrovými řetézy (3), uspořádanými mezi jednotlivými částmi ochranného obalu (2), přičemž obvodová délka neuzavřeného oblouku (1) se pohybuje v rozmezí od 190° do 340°.
Patent CZ-177797-A3 (CZ)
Title: Method of inserting a screw
Inventor: OSTERLE HELMUT
IPC: F16B21/02
Filed: 1995-12-18
Abstract: In a process for driving in a self-boring, self-piercing, thread-shaping or thread-cutting screw (1), an axial percussion effect (6) is added to the rotary drive (7) during the hole boring step. During the thread-shaping step, the axial percussion effect is stopped and only the rotary drive remains.
Patent CZ-188597-A3 (CZ)
Title: Silicon preparations
Inventor: HUGHES IAIN ALLAN
IPC: A61K8/42
Filed: 1995-12-05
Abstract: A bleach composition comprising an inorganic persalt bleaching agent, a lipophile selected from flavorants, perfumes, physiological coolants, antimicrobial agents and mixtures thereof, and an aminoalkylsilicone having an aminoalkylsiloxane content of from about 0.1 % - 2 % on a repeating unit basis. The composition provides improved lipophile and bleach stability.
Patent CZ-200939-A3 (CZ)
Inventor: NAVRATIL ROMAN
IPC: A01D101/00
Filed: 2009-01-27
Abstract: Predmetem vynálezu je travní sekacka, kde na výstupu trávy ze žacího mechanismu je pomocí otvoru (13) napojen lis (21) a výstup slisovaného, pevného materiálu lisu je dále veden do sberného koše (15) nebo zanecháván na sekané pude a vylisovaná kapalina je vedena na sekanou pudu a/nebo do sberné nádoby. V prední cásti sekacky je umístena nejméne jedna tryska (51), která je pripojena na prívod tlakové kapaliny, kde kapalina je z trysky (51) vyvedena tenkým paprskem (70), který provádí rez trávy. Tryska (51) rovnež muže být pripojena na zdroj tlakového vzduchu a kapalina se používá jako abrasivní materiál. Kapalinu pro rezný paprsek (70) lez s výhodou privádet ze sberné nádoby pro kapalinou vylisovanou v lisu (21).
Patent CZ-225596-A3 (CZ)
Title: Film-coated tablets of paracetamol and domperidon
Inventor: PRUDHOE GORDON
IPC: A61P1/08
Filed: 1995-02-27
Abstract: PCT No. PCT/EP95/00719 Sec. 371 Date Jun. 4, 1996 Sec. 102(e) Date Jun. 4, 1996 PCT Filed Feb. 27, 1995 PCT Pub. No. WO95/22974 PCT Pub. Date Aug. 31, 1995The present invention is concerned with a film coated tablet comprising as active ingredients the analgesic agent paracetamol and the antiemetic agent domperidone, and with a process of preparing such tablets.
Patent CZ-9902615-A3 (CZ)
Inventor: TONTARELLI SERGIO
IPC: A47J47/02
Filed: 1999-07-23
Abstract: Potravinový kontejner (1) lisovaný z plastu s víkem (2) a
označením dat uložení potravin, zahrnuje ukazovátko (4) se
špičkou ukazovátka (4b), které je schopné klouzat, a být
zajištěno na místě, a to podél části okraje kontejneru (1),
přičemž špička ukazovátka (4b) spolupracuje s kalendářem
(5), umístěným na tělese kontejneru (1) nebo na tělese víka
(2), a to v rovnoběžné poloze a v blízkosti části okraje, po
kterém ukazovátko (4) klouže.
Patent CZ-261698-A3 (CZ)
Title: Thickening agents based on polymers containing carboxylic groups and carboxylamide groups as well as process for preparing thereof
Inventor: WEITZEL HANS-PETER DR
IPC: C08L33/24
Filed: 1998-08-18
Abstract: A thickening agent composition (I) contains carboxyl group and carboxylamide group containing polymers and is prepared by radical suspension or emulsion polymerisation of: (A) 30-70 wt.% of a carboxyl group containing ethylenically unsaturated monomer; (B) 10-70 wt.% of a carboxylamide group containing ethylenically unsaturated monomer; and (C) 0.1-30 wt.% of other ethylenically unsaturated monomers in the presence of at least 5 wt.% of a protective colloid consisting of polyvinyl alcohol, polyvinyl pyrrolidone or (meth)acrylate/(meth)acrylic acid copolymers.
Patent CZ-282594-A3 (CZ)
Title: Environment friendly building material
Inventor: SAVRDA ZDENEK
IPC: C04B18/20
Filed: 1994-11-16
Abstract: In the present invention there is disclosed ecologically stabilized product based on waste flue ash and containing waste flue ash and a binding agent. The invention is characterized in that the waste flue ash contains as a binding agent at least one waste thermoplastic material in the amount of 5 to 97 percent by weight, based on the ecologically stabilized product total weight.
Patent CZ-292993-A3 (CZ)
Inventor: FALBER MILOS ING
IPC: E04D3/32
Filed: 1993-12-31
Abstract: Střešní izolace obsahuje termoizolační část vytvořenou ze
segmentů (1) z porézního materiálu s průřezem o šířce 10 až
50 mm a výšce 20 až 100 mm. Hydroizolační část je vytvořena
jako hydroizolační vrstva (2), obsahující drcenou pryž
pojenou styrenakrylátovým kopolymerem. Hydroizolační
vrstva (2) je difuzně spojena se segmenty (1). Způsob výroby
spočívá v tom, že segmenty (1) se uloží do řady, kde
mezi boky segmentů (1) je rozteč 1 až 3 mm, takto vzniklé
pole se pokryje suspenzí drcené pryže ve vodní disperzi styrenakrylátového
kopolymeru a pak se nechá usušit odparem
a vsáknutím vody do porézního materiálu segmentů (1).
Patent SK-131293-A3 (SK)
Title: Controlled precipitation of particulate diagnostic imaging contrast agents
Inventor: MCINTIRE GREGORY L
IPC: A61K49/22
Filed: 1993-11-24
Abstract: A composition comprising a co-precipitate of a relatively solvent-soluble organic material and a relatively solvent-insoluble organic material, said relatively solvent-soluble organic material being selectively dissolved to produce a void-containing particle is described. The voids are preferably filled with air and the preferred relatively solvent-soluble organic material is carboxylic acid such as benzoic acid, salicylic acid, or diatrizoic acid and the preferred relatively solvent-insoluble organic material is an ester of diatrizoic acid, such as the ethyl ester thereof. A method of making a void-containing particle and a method of diagnosis comprising the administration to a mammal of a contrast-effective amount of a void-containing or air-containing particle is also described.
Patent SK-142797-A3 (SK)
Title: Process for producing n-methyl-2-(3,4 dimethoxyphenyl)-ethylamine
Inventor: FUCHS EBERHARD
IPC: C07C213/02
Filed: 1996-05-04
Abstract: A process for preparing N-methyl-2-(3,4-dimethoxyphenyl)-ethylamine comprises hydrogenating 3,4-dimethoxyphenylacetonitrile with a methylamine of the general formula I (I) where R1 is hydrogen, benzyl or tert-butyl, and hydrogen in the presence of a supported catalyst which comprises from 0.05 to 50 % by weight of copper chromite, copper, silver, gold, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum or mixtures thereof, in the presence or absence of water at from 20 DEG to 200 DEG C. under from 1 to 300 bar.
Patent SK-175998-A3 (SK)
Title: Method for producing xylitol
Inventor: HEIKKILA HEIKKI
IPC: C07C29/147
Filed: 1997-06-23
Abstract: The invention relates to a method for producing xylitol from a material containing xylose and xylonic acid. According to the method, xylose and xylonic acid are separated from the material c ontaining xylose and xylonic acid, whereafter the separated xylos e and xylonic acid are reduced to xylitol, and the xylitol is rec overed.
Patent BE-1004308-A3 (BE)
Title: Aandrijfsysteem voor de messenroosters van een dubbel-hef-opengaap jacquardmachine, en dergelijke jacquardmachines van een dergelijk aandrijfsysteem voorzien.
IPC: D03C3/40
Filed: 1989-07-17
Granted: 1992-10-27
Abstract: Aandrijfsysteem voor de messenroosters van een dubbel-hefopengaap jacquardmachine, die volledig boven de machine wordt opgesteld,en die bestaat uit een centrale aandrijfas, die aan beide uiteinden een stel komplementaire nokschijven aandrijft, die elk samenwerken met twee, diametraal tegenover elkaar opgestelde volgerhefbomen. Deze voeren met elkaar in tegenfase een heen- en weergaande scharnierbeweging uit, rond een dwarse symmetrieas, tussen hun armen in. Met elk paar volgerhefbomen worden twee messenophangbalken zodanig met die armen verbonden via aandrijfstangen dat ze, integenfase met elkaar, in vertikale parallelle vlakken op en neer bewegen. Aan elke twee in fase bewegende, messenophangbalken, die zich aan weerszijden van de machine bevinden in kettingrichting, wordt een aantal messen opghenagen in inslagrichting. Middelen zijn voorzien om de heffing en de inclinatie van de messenophangbalken in te stellen.
Patent BE-1009426-A3 (BE)
Title: Improved binder element for pages
IPC: B42D3/00
Filed: 1995-06-13
Granted: 1997-03-04
Abstract: Improved binder element for pages, of a type that comprises at least a spine (2) that includes a profile in rigid material and that is provided with a quantity of glue (4) on the inside that melts when heated, characterised by the fact that the spine (2) has at least one folding area (6) that divides the profile (3) into at least two sections (7-8, 14-15-16).<IMAGE>
Patent BE-1012594-A3 (BE)
Inventor: TIBBITTS GORDON
IPC: C23C30/00
Filed: 1996-12-05
Granted: 2001-01-09
Abstract: Couche de diamant polycristallin fixée à une structure de carbure métallique cimenté utilisé comme élément de coupe, l'élément de coupe présentant une ténacité à la rupture ou une résistance à la rupture améliorée en service par suite de l'inclusion de bore, de béryllium ou de matériaux semblables.
Patent WO-0193399-A3 (WO)
Title: Browser-enabled remote user interface for telecommunications power systems
Inventor: LAVERGNE MARC
IPC: H04L12/10
Filed: 2001-06-01
Abstract: The modular master control unit of the telecommunications power system communicates via a data bus with the associated modular rectifier units, distribution unit(s) and battery connection unit(s) to collect operating state information from the neuron processors of those units and store that information in a database. The master control unit also controls the operation of the associated modular units by supplying operating state information, based on values stored in the database. The user interface manager module provides local user interface control over the system by allowing the user through a local display screen and touch pad to read from and write to the database. By downloading an applet to a remote computer running a web browser, the user interface manager allows users at remote locations to perform the same control and monitor functions as a user at the local site. The applet runs within the standard browser and communicates with the user interface manager using TCP/IP protocol..
Patent WO-9119725-A3 (WO)
Title: Analogues heterocycliques d'anthracycline et d'anthracyclinone
Inventor: ATTARDO GIORGIO
IPC: C07D327/06
Filed: 1991-06-10
Abstract: On décrit des dérivés hétérocycliques d'anthracycline et d'anthracyclinone utiles au traitement des cancers et des tumeurs par exemple le cancer du sein, la leucémie, le cancer du poumon, le cancer du côlon, le cancer ovarien, le cancer du rein, le cancer du système nerveux central et le mélanome. On décrit également des compositions pharmaceutiques et des procédés de préparation des composés.
Patent WO-9322517-A3 (WO)
Title: Patte de fixation
Inventor: HELLWIG JOHN
IPC: E04B2/74
Filed: 1993-05-04
Abstract: Un système de fixation pour des parois de bureaux permet d'assurer une connexion partant à l'angle d'une paroi tout en garantissant la rigidité structurelle de l'assemblage. Les parois ont des rails accessibles (40) à des hauteurs prédéterminées qui peuvent s'engager dans un élément de structure (20) venant à son tour se verrouiller à la paroi adjacente. De préférence, plusieurs éléments de structure sont utilisés pour fixer deux parois en contact.
Patent WO-9850419-A3 (WO)
Title: 4-azasteroides
Inventor: PAMIDI CHENCHAIAH CHINNA
IPC: C07J71/00
Filed: 1998-05-06
Abstract: L'invention concerne de nouveaux 4-azastéroïdes, qui comportent des groupes fonctionnels au niveau d'une ou de plusieurs positions 7, 11 et 15, tels que des groupes hydroxy ou dérivés d'hydroxy. Ces composés sont actifs contre la 5-α-réductase, ce qui indique qu'ils peuvent être utiles pour lutter contre le cancer de la prostate. Ils peuvent être préparés par synthèse chimio-enzymatique à partir de 4-azastéroïdes faciles à se procurer.
Patent WO-0037060-A3 (WO)
Title: Plantes transgeniques et procedes de production de ces plantes
Inventor: KELLER W A
IPC: C12N15/12
Filed: 1999-12-22
Abstract: Des produits de synthèse génétique, des vecteurs de transformation et des procédés de transformation sont présentés pour la production de plantes transgéniques qui peuvent être sélectivement retirées d'un site de croissance par application d'un agent chimique ou d'une contrainte physiologique. Cette invention associe un gène cible pour sa caractéristique d'intérêt commercial à un gène létal sous conditions, qui peut être sélectivement exprimé pour provoquer la mort végétale. En utilisant ces produits de synthèse génétique, ces vecteurs de transformation et ces procédés de transformation, on peut éviter l'invasion de milieux ambiants et la contamination de productions commerciales non modifiées génétiquement de la part de plantes transgéniques. Des procédés sont présentés pour la transformation de l'espèce Brassica.
Patent CZ-2002854-A3 (CZ)
Title: Process for preparing asymmetric methine dyes
Inventor: STAWITZ JOSEF-WALTER
IPC: C09B23/10
Filed: 2002-03-07
Abstract: Preparation of asymmetric methine dyes is by reaction of a methylene-indoline, an orthoformic triester and a pyrazolone in presence of dioxan, a chlorohydrocarbon, chlorobenzene, dichlorobenzene, toluene, xylene, N-Me pyrrolidone, a lower (e.g. 1-5C) alcohol or a glycol (e.g. (di)ethyleneglycol or a mono- or di-alkyl ether), but especially in presence of n-BuOH. Preparation of asymmetric methine dyes of formula (I) is by reaction of a methylene-indoline of formula (II), an orthoformic triester of formula (III) and a pyrazolone of formula (IV) in presence of dioxan, a chlorohydrocarbon, chlorobenzene, dichlorobenzene, toluene, xylene, N-Me pyrrolidone, a lower (e.g. 1-5C) alcohol or a glycol (e.g. (di)ethyleneglycol or a mono- or di-alkyl ether), but especially in presence of n-BuOH. An Independent claim is also included for a reaction product which is a mixture of (I) (90-99.9 wt.%) with a symmetrical condensation product of formula (V) m(0.1-10 wt.%). R = 1-6C alkyl (especially Me); R<1> = H, halogen (especially Cl, Br or F), alkyl or alkoxy (each especially of 1-6C), NO2, CN, sulfonamide (especially SO2NR<4>R<5>), COOH, carboxylic acid ester (especially COOR<9>) or carboxamide (especially CONR<4>R<5>); R<2> = alkyl (especially of 1-6C); R<3> = alkyl (especially of 1-6C), COOH or carboxylic acid ester (especially COOR<9>); X = H, halogen (especially Cl, Br or F), SO2NR<4>R<5>, SO2NCHR<6>R<7> or SO2R<8>; R<4> - R<7> = H or (especially 1-6C) alkyl; R<8> = alkyl (especially of 1-6C) or hydroxyalkyl, especially hydroxyethylene; and R<9> = 1-6C alkyl.