Abstract: An accommodating intraocular lens comprising a flexible body, a flexible optic which is moveable anteriorly and posteriorly relative to the lens body, and a weakened portion connecting the optic to the body. The body may have extending centration and fixation loops on its distal ends.

Abstract: There is disclosed a method for improving the rheological properties of a clay mineral which, when dispersed with water, either releases into solution or retains on its surface multivalent cations, which method includes the step of treating the clay mineral in aqueous suspension with an aluminosiliceous material having a cation exchange capacity of at least 50 meq/100 g, said aluminosiliceous material being employed in an amount sufficient to react with a significant proportion of the exchangeable cations in the clay mineral. Also disclosed is an aqueous suspension of a clay mineral, a method for preparing a paper coating composition and a method for improving the rheological properties of a clay mineral.

Abstract: Material is comminuted in a substantially dry state in a chamber (4) as a result of agitation by a rotor. During the process, gas is admitted to the chamber (4) through a foraminous base (8) to flow upwardly in a uniform manner across the cross-section of the chamber. Pulses of gas are directed periodically at the material through inlets (15) to prevent agglomeration of the material. The pressure of the gas admitted through the inlets (15) is higher than that admitted through the foraminous base (8). Surface active agents may be added to the material, also to prevent agglomeration, as well as, or instead of the use of pulsed gas.

Abstract: An organophillic clay gellant which is readily dispersible in unsaturated polyester resin compositions without requiring first being dispersed in styrene to form a pregel, and the process of preparation thereof, are described.

Abstract: A trailing blade paper coating apparatus is disclosed which comprises means providing a resilient curved surface for supporting a moving web of cellulosic material, an applicator for a paper coating composition and a trailing blade which in use is biased towards and in contact with the moving web of cellulosic material, and which further includes a flexible blade mounted so that, in operation of the trailing blade paper coating apparatus, the flexible blade is in contact with a web of cellulosic material to be coated at a location which is upstream relative to the trailing blade and downstream relative to the applicator for the coating composition. A method is also disclosed and claimed.

Abstract: A method of monitoring the deflocculation of particles in a suspension, which particles, when deflocculated, are such that they can become aligned in an applied field, comprises applying a beam of radiation to a region of the suspension, applying a field to the region and detecting a change, if any, in radiation scattering properties of said region due to the aligning of deflocculated particles if any, of the suspension in the field, the method comprising applying such a field to such a region of a first sample of suspension whose degree of deflocculatin is desired to be monitored and applying such a field to such a region of a second sample of suspension, whose particles are known to be substantially fully deflocculated, detecting the change in radiation scattering properties of each region due to the field to produce a respective output indication, and comparing the indications to produce an indication related to the degree of deflocculation of the particles in the first suspension.