Abstract: Solid objects are formed in an imagewise layering process in which components of a dispersion are homogenized to form an alloy. Imagewise exposure of the layers to radiation to form an alloy permits separation of the exposed, homogenized regions from non-exposed, non-homogenized regions. As each layer is formed and imagewise homogenized, contiguous layer regions are bonded together to form a homogenized, three-dimensional object which may be separated from surrounding dispersion.

Abstract: Marine aquaculture apparatus comprises a submersible torus-shaped enclosure having perforations therein. Structure is provided for raising the torus-shaped enclosure to the surface of a body of water and lowering the enclosure into the body of water. An access door on the torus-shaped enclosure provides entry into interior portions thereof. These interior portions of the enclosure function as a habitat for growing marine life such as fish. Preferably the torus-shaped enclosure comprises a perforated surface generated by the revolution of a circle about a vertical axis.

Abstract: The present invention relates to compounds of the formula (I) ##STR1## where R.sup.1 is H or an alkyl radical having from 1 to 12 carbon atoms, R.sup.2 is a straight-chain alkylene radical having from 1 to 8 carbon atoms, an oxygen-containing alkylene radical having from 2 to 4 carbon atoms, a radical of the formula (II) or (III) ##STR2## or a cycloalkylene radical having from 3 to 10 carbon atoms, R.sup.3 is an alkyl radical having from 1 to 25 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, A is a radical --COO.sup.- or --SO.sub.3 .sup.- and x=0, y=1, m=1 and n=1, or x=1, y=1, m=(1 or 2) and n=(1 or 2), or, if R.sup.2 is a radical of the formula (II) or (III), x=1, y=0, m=(0 or 1) and n=(0 or 1), and also a process for their preparation.

Abstract: Carbogenic molecular sieve devices comprising a porous support (e.g., a metal support) having a carbogenic molecular sieve membrane attached to one or more surfaces of the support so that small pores in the membrane are in communication with larger pores in the support and methods of making the devices.

Abstract: A compound of the formula: ##STR1## wherein: A is hydrogen, a substituted or unsubstituted C.sub.1 to C.sub.4 alkyl, a substituted or unsubstituted C.sub.1 to C.sub.4 alkoxy or a substituted or unsubstituted phenyl;W is a substituted or unsubstituted phenylene or a substituted or unsubstituted naphthylene;Y is--CH.sub.2 --CH.sub.2 --Z wherein Z is selected from --OSO.sub.3 H, --SSO.sub.3 H, --OPO.sub.3 H, --OCOCH.sub.2 --Cll.sub.3, Cl, Br or F; andm is 1 or 2, e is 0 or 1,with the sum of e+m=2.

Abstract: The invention relates to new amorphous, high-strength SiBN(C) fibers which are at the same time resistant to high-temperature creep, their production and use. The fibers have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa and a creep value m of from 0.4 to 1 (in accordance with standard BSR test, 1 hour, 1400.degree. C.).

Abstract: Catalyst systems with a content of a platinum-group-metal catalyst, a co-catalyst, a quaternary salt and a base for the oxidative carbonylation of aromatic hydroxy compounds to the corresponding diaryl carbonates are according to the invention obtained as a mother liquor by suspension crystallization and can be returned into the carbonylation reaction or worked up to valuable materials. The crystallizate, which consists predominantly of diaryl carbonate and the parent aromatic hydroxy compound, is worked up to pure diaryl carbonate and pure hydroxy compound.

Abstract: A continuous process for the preparation of polyacetal copolymers from 1,3,5-trioxane and the comonomers known for this purpose using strong protic acids as an initiator, in which the initiator is added in an amount of 0.01 to 0.6 ppm, based on the total amount of monomers, in finely divided form to the monomer mixture, after the polymerization step the crude polymer is transferred from the polymerization reactor to a mixing unit without further intermediate steps, excess monomer is removed from the crude polymer in the mixing unit or between polymerization reactor and mixing unit by applying reduced pressure and, if desired, generally customary stabilizers, assistants, fillers, reinforcing materials and/or colorants are incorporated into the polymer in the mixing unit.

Abstract: The invention relates to granules of inorganic pigments, a process for their production using several auxiliary substances by compacting and their use in many technical fields.

Abstract: The present invention relates to a multinuclear metallocene compound of the formula I, ##STR1## where M.sup.1 is a tetravalent metal, L.sup.1 are, independently of one another, identical or different and are each a substituted cyclopentadienyl group, L.sup.2 and L.sup.3 are, independently of one another, identical or different and are each a .pi. ligand, B are, independently of one another, identical or different and are each a divalent bridging unit, X are, independently of one another, identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.10 -fluorocarbon radical or a hydrocarbon-containing radical having 1-40 carbon atoms, and k is an integer from 0 to 10. The metallocene compound of the present invention is suitable as a catalyst component for preparing olefin polymers.

Abstract: The present invention relates to new carbosilane dendrimers comprising Si--O-metal bonds, to a method of preparing them and to their use.

Abstract: A process for the preparation of a polyolefin wax If a catalyst consisting of an aluminoxane and a metal-locene of the formula I ##STR1## in particular R.sup.5 R.sup.6 C (Ind).sub.2 or R.sup.5 R.sup.6 C (Ind).sub.2 Zr(CH.sub.3).sub.2, is employed for the polymerization of olefins of the formulaR.sup.9 CH.dbd.CHR.sup.10(R.sup.9, R.sup.10 =H or C.sub.1 -C.sub.28 alkyl), the isotacticity of the polymer wax and hence the hardness and melting point can be varied simply by changing the polymerization temperature, without the molecular weight of the polymer being noticeably changed at the same time.

Abstract: Electronic data processing system for preparation of electronically filed tax returns and authorization and payment of refunds based on the data supplied in those returns. Electronic data processing programs are provided for creating an electronic tax return that is filed with a tax collecting authority. At the same time as the electronic tax return is created, a loan application is processed to create an electronic deposit/loan account for the tax filer at an authorized credit institution. As early as the day after completion of the tax return and loan application, the tax filer receives initial refund payment from the loan account. The authorized credit institution electronically files the electronic tax return with the tax collecting authority which processes the return and transfers by electronic fund transfer the refund amount to the deposit/loan account at the authorized credit institution. Any refund in excess of the initial refund payment is then forwarded to the tax filer.

Abstract: An inertial switch includes an open-ended outer casing formed of electrically conductive material. An insulated end cap is engageable with the open end of the outer casing to enclose the outer casing. An electrically conductive pin extends through the end cap and into the casing and is electrically isolated from the outer casing by the end cap. A longitudinally extending helical coil spring is secured to the pin adjacent one end thereof. The spring is electrically isolated from the outer casing but is deflectable about a longitudinal axis thereof to contact the outer casing thereby to close the inertial switch in response to accelerations of the inertial switch.

Abstract: Dyestuffs of the formula whereinD is the radical of a carbo- or heterocyclic diazo component,X represents O, NH, NT, NCOT, NCCH.sub.2 T or NSO.sub.2 T,and the other substituents have the meaning given in the description, are preferably suitable, if m=n=l=o, for dyeing and printing hydrophobic synthetic fiber materials and mixtures thereof with naturally occurring fiber materials.

Abstract: The production of a silver halide emulsion in an aqueous protective colloid solution by the reaction of, on the one hand, silver nitrate, and, on the other, at least one water-soluble halide, may be performed particularly simply and with great apportioning accuracy, if, during at least part of the precipitation, at least the predominant part of one reactant is added in the form of a solid salt to the aqueous protective colloid solution.

Abstract: An aquatic exercise and rehabilitation device includes an exercise cycle which is mounted in a tank or water holding vessel. The user would sit on a seat and the user's legs would be placed on pedals connected to the wheel. The wheel unit can be rotated from the force from the user or alternatively the rotational force could be imparted by a rotating drive surface which contacts the wheel unit. A particularly suitable form of rotating drive surface is a treadmill which optionally offers an alternative form of underwater exercise. Another form of drive surface is a cycle.