Abstract: The present invention relates to pigment preparations containing(a) at least one pigment having an average primary particle size of 0.1 to 50 nm selected from the group consisting of carbides, nitrides, borides, and silicides of the elements Ti, Zr, Hf, Si, Ge, and Sn,(b) at least one dispersant having a weight average molecular weight (M.sub.w) greater than 1000, and(c) water.The invention further relates to the use of such pigment preparations in inks for ink-jet printing.

Abstract: An interface circuit for interfacing a relegendable liquid crystal display (LCD) keyswitch to a controlling processor. The interface circuit is adaptable for use with data input devices and point-of-sale devices.

Abstract: Pigment preparations comprisinga) 0.1 to 70% by weight of pigment,b) 10 to 99% by weight of water, each based on the preparation,c) 0.1 to 100 % by weight, based on pigment used as component a), of a water-soluble polyisocyanate addition product, said polyisocyanate addition product having hydrophilic polyether chains and an isocyanate group content of not more than 1.0% by weight, containing 30 to 95% by weight of ethylene oxide units (molecular weight=44 g/mol) arranged within polyether chains and incorporated via monofunctional alcohols B), having an ionic group content of 0 to 200 milliequivalents/100 g of polyisocyanate addition product, and having been prepared by reaction of component A to E, the meaning of which is specified in the descriptive part,are highly useful as printing inks for inkjet printing.

Abstract: This invention relates to pigment preparations containing(a) a pigment,(b) a monohydroxy ether, a polyether polyol, and/or a polyester polyol,(c) a polyisocyanate addition product having an NCO content of <1.0 wt. % and 30 to 95 wt. % of ethylene oxide units arranged within polyether chains and derived from monofunctional alcohols (B) that is prepared at an NCO index of 100 to 600 by reacting(A) a polyisocyanate component having an (average) NCO functionality of 1.7 to 6 and an NCO content of 5 to 65 wt. % with(B) 5 to 100 equivalent %, based on (A), of monohydric poly-ether alcohols having a molecular weight of 150 to 10,000 and an ethylene oxide unit content of 40 to 99.5 wt. %,(C) 0 to 20 equivalent %, based on (A), of a monofunctional isocyanate-reactive compound other than monohydric alcohol (B),(D) 0 to 50 equivalent %, based on (A), of an isocyanate-reactive tertiary amine compound, and(E) 0 to 20 equivalent %, based on (A), of a formative component containing at least two NCO-reactive groups.

Abstract: This invention relates to a process for producing finely divided dispersions of solids having an average particle size of 0.01 to 20 .mu.m by the comminution of coarse particulate dispersions in a hole- or slit-type nozzle 4 having a specific bore length to diameter ratio at a pressure difference greater than 5 bar between the nozzle inlet and the nozzle outlet. The invention also relates to an apparatus for producing the finely divided dispersion.

Abstract: A pellet formed from a mix of two polymer materials which are non-homogenous is extruded through a die to form a highly roughened surface creating an enhanced melt fracture appearance. The extrusion is chopped into pellet form to provide a large surface area pellet to be used as a harbour for biomass in water treatment processes. Large quantities of such pellets in a filter provide a very effective filtration effect, largely because the highly roughened surface provides an enormous number of cavities within which the biomass can be retained.

Abstract: In the process for the preparation of microcapsule dispersions by an interface polyaddition process in which an oil-in-water emulsion is prepared from an oily phase, which comprises the substance to be encapsulated and a lipophilic substance capable of polyaddition, and on aqueous phase, and the reaction partner required for the polyaddition is then added to the aqueous phase, capsules with smaller particle sizes are obtained, with a saving in emulsifying energy, if an oil-soluble emulsifier is added to the oily phase before the emulsification.

Abstract: The invention relates to new, free-flowing polyamide molding compounds and blends, characterized in that they are prepared by mixing of polyamides known per se in the melt with low molecular weight, liquid-crystalline esters and/or ester amides corresponding to formula (I) and/or liquid-crystalline, oligomeric esters and/or ester amides corresponding to formula (II) and, optionally, other additives, at least one polymeric blending component being used as a further additive in the case of polyamide blends, and to the use of these liquid-crystalline (LC) additives I and/or II as flow promoters in polyamide molding compounds and blends and to a process for the production of the new polyamide molding compounds and blends. The invention also relates to the new oligomeric esters and/or ester amides corresponding to formula (II).

Abstract: Apparatus enabling the pages of a book to be turned by remote control comprises a book-support with a reversible electric motor on it. An output shaft of the motor extends across the book and the motor is pivotally mounted for swinging the shaft both across and perpendicular to the book through limited angles. A friction wheel is on the shaft for rolling across the pages of the book and a radial finger adjacent the friction wheel is coupled to the shaft through a slipping clutch.

Abstract: A pit-type latrine with a capability of sealing the escape of odors and the ingress of insects, including a chute and a tippable pan at the lower zone of the chute adapted to contain a quantity of water.