Abstract: A shrinkage compensated mortar or grout can be made with about 40 to 60% by weight of fine aggregate and 40 to 60% by weight of a hydraulic composition which in turn is made with 60 to 80% by weight of mixture of rapid hardening cement and 20 to 40% portland cement; and based on the weight of cement, 5 to 8% by weight of silica powder; 0.2 to 0.4% by weight of a hydroxycarboxylic acid or a salt thereof; and 2 to 3% by weight of a high performance water-reducer. Such shrinkage compensated mortars or grouts are useful in the installation of machinery, foundations for major structures and the like.

Abstract: The fluidizing or water-retention effect of plasticizers and superplasticizers in cement is increased when the cement has been treated with water before the mixing step, so that it retains from 0.1 to 10% by weight of water.

Abstract: Water-soluble polyacetal or polyketal having the formula ##STR1## wherein R.sub.1, and R.sub.2 are aliphatic, cycloaliphatic or aromatic groups, for ketals; R.sub.1 is hydrogen and R.sub.2 is aliphatic, cycloaliphatic, or aromatic groups for acetals; R.sub.3 and R.sub.4 are also aliphatic, alkoxy, cycloaliphatic or aromatic groups X represents groups as (CH.sub.2).sub.n, O(CH.sub.2).sub.N O or ##STR2## that connect the pendant unsaturation to the aliphatic, cycloaliphatic or aromatic R.sup.4 groups, the ratio of a to b is 0.5 to 10, and n is 10-100.

Abstract: A blister packaging card which contains a closure means for at least one blister which is integral with the card. The card can be prepared from a single sheet (1) comprising a series of blisters (2) at least one pair of which (3, 4) is adapted to mutually engage.

Abstract: Tablet formulations for the diffusable release of drugs in the gastrointestinal tract, which formulations protect the gastric mucosa from the effects of solid, gastric irritating drugs. The formulation comprises a drug tablet core, coated with a water permeable, gastrointestinal fluid insoluble polymeric coating, e.g., polymethyl methacrylate, polyethylene glycol polyvinylacetate, diethylphthalate and dioctyl sodium sulfosuccinate.

Abstract: Chemically synthesized structured triglycerides (lipids) for enteral administration as the lipid calorie source, is subjects undergoing severe metabolic stress.

Abstract: This invention relates to chiral compositions.

Abstract: A therapeutic composition comprising a therapeutic macromolecular agent incorporated in cross-linked polyacetal.

Abstract: A product of an oligomer derived from glycolic acid and/or lactic acid, the oligomer having a molecular weight of from 500 to 10,000, the free carboxylic acid group of the oligomer being at least partially in the form of an amide with an amino acid or an ester with a sterol may be used as a matrix material for depot forms, containing pharmacologically active agents.

Abstract: New poly-dicarboxylic acid anhydrides, which are suitable as bio-degradable matrix materials for the controlled release of medicinal agents in humans. The anhydrides have the following formula: ##STR1## where ##STR2## where n=an integer of two or more, for the first three radicals, or one or more for the fourth.

Abstract: The invention relates to a fluid treatment apparatus resulting from the stacking of plates 1 each having, on each of their two main faces, a treatment zone 3 provided with ribs 2, the two membranes being placed between the opposite faces of each adjacent plate 1 of the stack. The two membranes between each adjacent plate are held at a multiplicity of points by the ribs of adjacent plates, at least one rib, and preferably both, at each such point having at least one portion 14 of maximum height H only over a length l which is less than the total length L of that rib or the distance between maximum height portions on that rib. The apparatus is particularly useful in the medical field, especially as a haemodialyser.

Abstract: The invention relates to an apparatus comprising a stack of plates having plates of a type A and a type B alternating. Each plate has exposed channels and a semi-permeable membrane 1 turned over one of its edges 2. The membranes extend into the exposed channels 8, 8a-9, 9a to provide locations for the passage of the fluid to be treated flowing between the two superposed membranes 1 arranged between two adjacent plates A and B. Further exposed channels 13, 15, 17, 19 are used for the passage of the treating fluid flowing between the face of each plate in the exchange and/or separation zones 3, 3a of the plates A and B thereon and the adjacent membrane. If each plate A is symmetrical relative to a median plane perpendicular to one edge 2, each plate B of the stack can be considered as a plate A which has been turned through 180 degrees about a median axis perpendicular to the edge 2.

Abstract: Prevention of catabolism and increasing protein synthesis in a subject undergoing stress with compositions containing isoleucine, leucine and valine.

Abstract: Artificial kidney comprises a hemodialyzer connected in a dialysis liquid circuit which is in the form of a loop the volume of which is essentially invariable. The circuit is open to the atmosphere and comprises a circulating pump arranged upstream of the hemodialyzer. Means are provided for drawing off and measuring, outside the said circuit, amounts of liquid equal to the amounts of ultrafiltrate which it is desired to remove from a patient's blood stream. A variable hydraulic resistance is provided downstream of the hemodialyzer and comprises a float, the resistance being operative to keep the dialysis liquid at an essentially constant level in the circuit in order automatically to regulate the pressure of the dialysis liquid in the hemodialyzer.

Abstract: An artificial kidney comprising a haemodialyser 16 connected to a dialysis liquid circuit. The latter can be entirely integrated, that is to say that the functions previously performed by a plurality of self-contained members connected to one another are now performed by a common unit consisting of a very small number of multifunctional components. This common unit is preferably disposable. A small console groups together, with their electric circuits, the re-usable means for controlling and checking the artificial kidney.

Abstract: An electrolytic cell which has at least one three-dimensional cathode of non-galvanizable material, which cell is useful in removing metal ions or complexed metals from industrial waste water for example such as produced in the production and use of complex metal dyestuffs.

Abstract: The invention provides semi-permeable hollow fibres of symmetrical type and of homogeneous microporous structure, with a smooth internal surface, which are obtained by cooling a solution of a copolymer of acrylonitrile and an olefinically unsaturated comonomer carrying optionally salified sulphonic acid groups, in a polar organic solvent with an adjuvant, to give a thermally reversible gel, followed by washing, stretching and relaxation treatments. The new hollow fibres have improved haemocompatibility and are useful in treating blood by haemodialysis, ultrafiltration and/or plasmapheresis.

Abstract: Water soluble polyacetals having molecular weights from about 5,000-30,000 are formed by condensing three monomers, e.g. a divinyl ether, a water soluble glycol and a diol. The invention is used for the bioerodible controlled release of therapeutic agents from the polyacetal hydrogel.