The present invention uses ammonium sulfate slag, being the waste from the prodn of ammonium phosphate, rather than gypsum as cement retarder with the added amount being 1-10%. Cement produced with said retarder has raised flexion strength and compressive strength and low cost.

A biologically active oligosaccharide compound comprising at least two L hexose rings connected together by an ether oxygen atom. The ether oxygen atom is connected to a first of the rings at the first carbon atom to the right of the hexose ring oxygen atom. The compound contains at least one sulfate or phosphate group connected to the first ring at the third carbon atom to the right of the ring o...

A method and pharmaceutical composition for the prevention of fibrin deposition or adhesion formation by topical application of a composition to a site of potential fibrin deposition or adhesion formation comprising a sparingly soluble enzyme that is continuously released at that site for a period of time of from about three days to two weeks which may include an inert adherence enhancing vehicle.

The invention relates to compounds of the formula defined in the description, X is NH or oxygen and E is a bond or a 1- to 4-membered carbon chain, to a process for their preparation, to agents containing them, and to their use in the control of pests and as fungicides.

Anomeric 2,2-difluororibosyl azide and amine intermediates which are useful in the preparation of 2'-deoxynucleosides, and processes thereto.

Etoposide phosphate is prepared by coupling dibenzyl 4'-demethyl-4-epipodophyllotoxin-4'-phosphate with 2,3-di-O-benzyl-4,6-O-ethylene- alpha , beta -D-glucopyranose in a solvent and subsequently removing the protecting groups. The tetra-benzyl protected etoposide phosphate is recrystallized from methanol or directly crystallized from acetonitrile by adding methanol to yield substantially the pure...

An apparatus for positioning an end-effector comprising a multi-bar linkage drive mechanism. The drive mechanism has a base structure (12) and a movable arm structure (14). The moveable arm structure has four arms (30, 31, 32, 33) arranged in a general parallelogram profile with a center of gravity at a main shaft (20) located at a connection of two of the arms. Two of the arms have energizeable e...

Anionic tenside mixtures are obtained by sulphonation of homogeneous mixtures of alkyl glycosides which are liquid at temperatures between 25 and 80 DEG C and a compound chosen from the group consisting of fatty alcohols, their ethylene oxide addition products, saturated and unsaturated fatty acids and their low alkyl esters, followed by neutralization with aqueous bases.

The invention relates to a mixing and processing device which is equipped with a separately drivable gear pump as the discharge means. In order to avoid the deposition of material between the processing device and the discharge pump, a gear pump (5) overhung at one end face is flanged, by this end face, directly onto the discharge (41) of a screw extruder (4) in such a way that the infeed of ...

A method of linking nucleosides with a siloxane bridge comprising reacting a 3'-silylated-5'-protected nucleoside with an unprotected nucleoside is disclosed. The silylated and unprotected nucleosides may be either monomeric nucleosides or the terminal nucleosides of an oligonucleotide or oligonucleotide analog. A method of synthesizing an oligonucleotide analog having siloxane internucleoside lin...

An isolated or synthetic plasmalopsychosine selected from the group consisting of compound A and compound B, wherein n1 is a number greater than 0, and pharmaceutically acceptable salts thereof. An isolated or synthetic plasmalocerebroside selected from the group consisting of compound C and compound D, wherein n2 and n3 each is a number greater than 0; and pharmaceutically acceptable salts thereo...

A surgical stapler is provided which is insertable through an endoscopic tube to enable a surgeon to staple a hernia patch to tissue inside a body cavity. The endoscopic surgical stapler includes a staple cartridge pivotally mounted on the distal end of a support tube extending from a handle provided with an actuator mechanism for actuating a staple forming mechanism inside the staple cartridge to...

Pressure adjustment valve for circuits for the manual administration of gas mixtures in the medical field, including a body (2) that can be interposed on the circuit of a manual respiration unit and has an intake port (3) and a discharge port (4). Inside the body (2) there is provided an adjustment valve (10,21) that can be positioned so as to vary the useful passage section of the gas stream in o...

A device for aiming a puncture instrument to an area of interest within a patient's body, such as a suspicious breast lesion, is disclosed. The device includes an imaging system (111, 112, 115) and a movable puncture instrument (120) which are isocentric with respect to a common isocenter. An initial calibration process can be performed without the patient to ensure that the puncture instrument (1...

Viral infection is inhibited in mammals by administration of metabolically stable, non-toxic 2',5'-oligoadenylate (2-5A) derivatives that have a dual therapeutic effect. The compounds activate the intracellular latent 2-5A dependent endoribonuclease RNase L and also inhibit the action of viral DNA polymerases. Conjugates of the 2-5A derivatives for therapeutic delivery are also described.

Compounds are described of formula (I), wherein R<1> represents a hydroxyl group or a group selected from -OCOCH=CHCH(CH3)(CH2)3CH3, -OCOCH=CHC(CH3)=CHCH(CH3)CH2CH3 or -OCO-X-CH2CH(CH3)CH2CH3[where X is -CH=CHCH(CH3)-, -CH2CH(OH)CH(CH3)-, -CH=CHC(OH)(CH3)-, -CH2CH(OH)CH2- or -CH2CH2CH(CH3)-]; R<2> represents a hydroxyl group; R<3> represents a group selected from (a) (where R<8> is ...

Compounds are described of formula (I), wherein R<1> represents a hydroxyl group or a group selected from -OCOCH=CHCH(CH3)(CH2)3CH3, -OCOCH=CHC(CH3)=CHCH(CH3)CH2CH3 or -OCO-X-CH2CH(CH3)CH2CH3 [where X is -CH=CHCH(CH3)-, -CH2CH(OH)CH(CH3)-, -CH=CHC(OH)(CH3)-, -CH2CH(OH)CH2- or -CH2CH2CH(CH3)-]; R<2> represents a hydroxyl group; R<3> represents a group selected from (1) (where R<7> is...

The present invention provides a process for preparing lactone intermediates to 2',2'-difluoronucleosides whereby reversion back to the lactone's open chain precursor is minimized and the desired erythro enantiomer can be selectively isolated from an enantiomeric mixture of erythro and threo lactones in crystalline form. Also provided is a process for producing 2'-deoxy-2',2'-difluoronucleosides i...

Polymerisatpulver, deren Polymerisat im wesentlichen aus einer überwiegenden Menge Methylmethacrylat sowie einer α,β-monoethylenisch ungesättigten Carbonsäure aufgebaut ist und dessen Verwendung als Zusatzmittel in Zement enthaltenden mineralischen Bindebaustoffen.; Polymer powders whose polymer is built up essentially from a predominant amount of methyl methacrylate and an alpha , beta -monoethy...

Beschrieben werden Überzugsmittel die zur Verwendung als Grundierungen und Füller bei der Herstellung von Mehrschichtlackierungen, insbesondere auf dem Kraftfahrzeugsektor geeignet sind. Die Überzugsmittel enthalten ein Bindemittelgemisch aus A) 60 - 75 Gew.-% eines hydroxyfunktionellen Copolymerisates mit einer OH-Zahl von 110 bis 170 mg KOH/g, erhältlich aus a) 5 - 60 Gew.-%, vorzugsweise 10 - 3...