Abstract: Processes for preparing polymeric thickeners are provided which give, in preferred compositions, both good flow and leveling properties as well as sag resistance to coating compositions such as aqueous paints. The thickeners are prepared by conducting the polymerization in glycol such as ethylene glycol or propylene glycol with or without a little added water. The monomers polymerized consist essentially of (a) about 1-99% by weight of at least one unsaturated carboxylic acid of 3 to 6 carbon atoms, and (b) about 99-1% by weight of at least one ester of the formula ##STR1## wherein R and R.sub.2 are each hydrogen or methyl,x is a positive integer of 5 to 80,y is an integer of 0 to 20, andR.sub.1 is alkyl of 1 to 20 carbon atoms or alkyl phenyl where the alkyl group is from 1 to 20 carbon atoms.

Abstract: Ethylenically unsaturated esters of difunctional acids and polymethylene glycols terminated with acrylate and methacrylate groups are useful as monomers in photopolymerizable compositions.

Abstract: The addition of a circumferential groove in the inner peripheral surface of the ring gasket made of cold-flowable metal induces diametrical expansion of the gasket during compression.

Abstract: A photohardenable element useful, for example, in color proofing and the like, additionally containing a protective top-coat comprised of tacky material, e.g. a layer containing unexposed photohardenable monomer and plasticizer, said top-coat being dusted with a powdered material capable of rendering the layer non-tacky and suitable for further handling. The powdered material additionally gives the surface of the element a matte finish.

Abstract: High contrast, dot-etchable solvent-processable lithographic film elements are described comprising a sheet support, a photopolymerizable layer having a thickness of, at most, 0.0004 inch (0.010 mm) and an optical density of at least 3.0 in the actinic region. Images made from these elements may be reduced in area by a process of chemically undercutting the image areas and then spraying or rubbing them. The elements are useful as contact speed lithographic films and for other graphic arts applications.

Abstract: Novel ergoline derivatives are disclosed having the general formula (I) ##STR1## wherein R.sub.1 is hydrogen, and alkyl radical (C.sub.1 to C.sub.4) either straight of branched chain,Z is hydrogen, bromine, S-R.sub.IV (in which R.sub.IV is an alkyl of from C.sub.1 to C.sub.4,R.sub.II is equal to R.sub.III and is an alkyl of from C.sub.1 to C.sub.6, orR.sub.II united with R.sub.III by-(CH.sub.2).sub.n, with n from 0 to 7, to form simple heterocyclic compounds such as pyrrolidine, piperidine, hexamethyleneimine, or united with --(CH.sub.2).sub.n --A--(CH.sub.2).sub.n, with n equal to a number from 2 to 5 to form heterocyclic compounds such as A=0 and n=2 to give morpholine, A is N-R.sub.V and N=2 for piperazine, either substituted or unsubstituted, with R.sub.V being hydrogen, an alkyl of from C.sub.1 to C.sub.4, or a phenyl radical, the x--y bridge being a ##STR2## bond. A method for the preparation of such compounds and pharmaceutical compositions thereof are also disclosed.

Abstract: Photopolymerizable elements are described comprising a sheet support, a photopolymerizable layer having a thickness of, at most, 0.0006 inch (0.015 mm.) and an optical density of at least 3.0 in the actinic region. Resist images made from these elements may be etched by a process of chemically undercutting the image areas and then spraying or rubbing them. The elements are useful as contact speed lithographic films and for other graphic arts applications.

Abstract: A seal of the type having a hollow housing with internal resilient fingers for receiving a shouldered stud of a shackle into one end of the housing into locking engagement with the fingers, in which the opposite end is closed by a plug having resilient legs snapped into engagement with an internal recess in said opposite end. In one embodiment of the invention, the seal is formed of a single piece of molded plastic, with the plug being molded alongside the housing and being attached thereto by a flexible hinge or web.In another embodiment of the invention, the end of the shackle beyond the shoulder projects into a cavity between the resilient legs to lock said legs into the internal recess.

Abstract: A spinneret for the production of hollow filaments that includes a cylindrical shaped insert swaged into each passage of the spinneret to effect a seal between the insert and spinneret. The insert is constructed to contain the polymer entirely within the insert to prevent leakage of polymer into the core gas supply passages of the spinneret.

Abstract: A conferencing circuit for use in a digitized speech, time division multiplex (TDM) loop communication system. Digitized speech samples from subscriber stations are extracted from the TDM loop and summed over a frame interval. The sum is stored and the input from each subscriber station is subtracted from the sum and the remainder is placed on the TDM loop for return to the respective subscriber station. A conference control signal is generated which is synchronous with the TDM loop and the subscriber stations' time slot and has a given state during each time slot assigned to a subscriber station that participates in the conference. The conference control signal controls the circuitry which sums the digitized speech samples generated by the conference subscriber stations.

Abstract: A roof gutter of channel form, with a bottom and upright front and rear flanges, is supported by a series of brackets secured to a roof structure, each bracket having a top arm which is engaged with the front flange of the gutter to prevent its being raised or lowered, the rear bottom part of the gutter being snapped into engagement with the bracket to secure the gutter in place.

Abstract: This invention relates to aliphatic phosphorous containing compounds which are useful as herbicides. Additionally, they demonstrate tolerance towards desired, crops, e.g. wheat and rice.

Abstract: A method is provided for isolating an elastomer from a mixture of the elastomer and water containing up to about 90% by weight water by feeding the mixture into a thermally controlled, vertical separator containing a rotating screw, simultaneously feeding excess water under pressure into the separator, withdrawing concentrated elastomer containing less than about 10% by weight total volatiles (including water) from the metering section of the separator and withdrawing feed water and excess water from a water discharge port located near the upper end of the separator.In addition, apparatus for isolating elastomers from mixtures of elastomers and water is provided.

Abstract: A play set comprising a three-dimensional doll figure and a variety of flexible, resilient clip-on pieces representing clothing for the doll to wear, vehicles and animals for the doll to ride in and/or on, etc. The doll has an original appearance, i.e. original clothes, pose, etc. The clip-on pieces may cover over portions of the original appearance and replace them in addition to adding to them. For example, original arm positions and a shirt may be replaced by different arm positions and a coat. Similarly, legs of a standing figure may be replaced by a motorcycle and legs positioned astride the motorcycle. In preferred form, the figure is bias-relief, having a flat rear surface defining a peripheral shoulder and the clip-on pieces each conform generally to the front of the bias-relief figure and have retaining lips that engage the peripheral shoulder.

Abstract: Gaseous effluents polluted by nitrogen oxides are purified by catalytic reduction. The catalytic compositions used contain iron and chromium associated with alumina and optionally at least a promoter selected from rare earth oxides with a content between 0.1 and 1% in relation to the active material and crude platinum metals with a content between 1 and 5 ppm in relation to the active material, the specific surface of the compositions being between 50 and 300 m.sup.2 /g and the dimensions of the pores between 40 and 50,000 A. These compositions are applicable for processes of purification of nitrogen oxides with any content.

Abstract: Process for formylating an alkyl-substituted benzene using carbon monoxide and hydrogen chloride, in the presence of aluminum chloride catalyst, in a reaction mixture which includes chlorobenzene as a solvent, and process for oxidizing an alkyl-substituted benzaldehyde using oxygen, in the presence of an autoxidation initiator, in a reaction mixture which includes cyclohexanone as a reductant.

Abstract: New carboxyalkylacylamino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors.

Abstract: Multilayer capacitors of good electrical properties can be made by firing, in air at low temperatures, certain modified lead titanate dielectric compositions. The dielectric compositions have the formula(Sr.sub.x Pb.sub.1-x TiO.sub.3).sub.a (PbMg.sub.0.5 W.sub.0.5 O.sub.3).sub.bwhereinx is 0-0.10,a is 0.35-0.5,b is 0.5-0.65, anda plus b equals one.

Abstract: New substituted acyl derivatives of amino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors. The compounds claimed in this application are those wherein B is indolyl-lower alkylene.

Abstract: Quaternary ammonium salts act as phase transfer catalysts when present in reactions of alkoxycarbonylcyanamide with di-C.sub.1-3 alkyl sulfate.