Abstract: Alkoxylation products which are suitable as dispersants and are of the general formula I ##STR1## where A is oxygen or --CO--O-- when x and y are each 1 or is nitrogen when x+y=3,B is ethylidene or 1,2-propylidene,Z is one of the groups ##STR2## D.sup..crclbar. is formate, acetate, propionate or hydroxide, E.sup..crclbar. is carboxylate or sulfonate,M is a bridge group for completion of a pyrrolidone, succinimide or maleimide ring to give a group ##STR3## n is from 1 to 50, q is from 1 to 4,x and y are each 1 or 2, with the proviso that x+y.ltoreq.3,R.sup.1 is C.sub.8 -C.sub.30 -alkyl or, when A is oxygen, is C.sub.4 -C.sub.12 -alkyl-substituted phenyl,R.sup.2, R.sup.3 and R.sup.4 are each hydrogen, methyl or ethyl andR.sup.5 is hydrogen or methyl,a process for their preparation, their use for dispersing finely divided solids in flowable media, and formulations containing the alkoxylation products.

Abstract: A process for thermoplastic processing and sintering an unplastifiable polymer comprises dispersing the unplastifiable polymer in powder form in a melt of a polyacetal or a mixture of polyacetals, cooling the resulting mixture, granulating it, forwarding the granules to a thermoplastic processing stage, injection or extrusion molding, exposing the molding to an atmosphere which contains an acidic gas, thereby de-polymerizing the polyacetal, enveloping the remaining porous molding on all sides in a gas/liquid-impermeable film, heating in an autoclave, and isostatically sintering the molding with pressure from all sides to form the finished article.

Abstract: Thermoplastic materials for the production of ceramic moldings containA) 40-65% by volume of a sinterable inorganic non-metallic powder,B) 35-60% by volume of a mixture ofB1) 70-90% by weight of a polyoxymethylene homo- or copolymer having up to 10 mol % of comonomer units andB2) 10-30% by weight of a polyoxymethylene copolymer with a comonomer content of 20-99 mol %, poly-1,3-dioxolane, poly-1,3-dioxane or poly-1,3-dioxepan, or of a polymer which is homogeneously dissolved or is dispersed with a mean particle size of less than 1 .mu.m in B1) or a mixture thereof,as a binder, andC) 0-5% by volume of a dispersant.