Abstract: An aqueous dispersion based on an acid-protonized reaction product from(a) Mannich bases free from epoxide groups, from(a.sub.1) condensed phenols free from ether groups with at least two aromatic rings and with at least two phenolic hydroxyl groups and/or(a.sub.2) condensed phenols, containing ether groups, with at least two aromatic rings and at least one phenolic hydroxyl group(a.sub.3) secondary amines with at least one hydroxyalkyl group, possible in a mixture with(a.sub.4) secondary dialkylamines or dialkoxyalkylamines without free hydroxyl groups,(a.sub.5) formaldehyde or compounds splitting off formaldehyde, with(b) epoxide resins, aliphatic hydroxyl groups from (a) and/or (b) being converted at least in part into urethane groups possibly by reaction with partly blocked isocyanates,containing furthermore fine-particulates non-ionic plastics in dispersed form. The dispersion and/or the fine-particulate plastics furthermore may contain pigments and/or fillers.

Abstract: Device for the corrective compensation of the altering aperture error formed by varying the aperture stop in reproducing systems of image recording apparatus, for instance photographic cameras.The reproducing system (2,3,4) comprises at least one optical member (3,22) affecting the aperture error and displaceably supported along the optical axis (23) of the reproducing system (2,3,4) for varying its relative position with respect to the other components (2,4) of the reproducing system. Setting means (17,28) are further provided which as a function of the variation in the aperture stop displace the optical member (3,22) by an extent corresponding to a corrective compensating nominal value along the optical axis (23) of the reproducing system (2,3,4).

Abstract: Dispersions of finely divided synthetic resins in plasticizers, optionally with pigments, fillers and further auxiliaries, contain 0.01 to 30% by weight, relative to the total weight of synthetic resin and plasticizer, of an isocyanate-free reaction product of a monoamine, if appropriate combined with a polyamine compound, with a monoisocyanate and/or polyisocyanate or a polyamine compound with a monoisocyanate, if appropriate combined with a polyisocyanate.

Abstract: Alkylesters of saturated aliphatic carboxylic acids are prepared by reacting aliphatic monoolefins containing internal double bonds and having 6 to 20 carbon atoms with carbon monoxide and an alkanol having one hydroxyl function in the presence of a catalyst of a cobalt compound and a promoter where the promoter is pyridine, a non-ortho-substituted alkylpyridine or a mixture thereof.The monoolefins can possibly contain paraffins and the reaction is carried out with:(a) a promoter to cobalt ratio of 3/1 to 25/1;(b) a cobalt concentration from 0.02 to 0.2 gram-atom of cobalt per mole of monoolefin;(c) a temperature between 165.degree. and 195.degree. C.;(d) a pressure from 150 to 300 bars;(e) a molar ratio of alkanol to monoolefin from 1/1 to 10/1; and(f) a dwell time exceeding 15 minutes.

Abstract: The invention relates to a selfcrosslinking heat-hardenable binder, in particular for electropaints, which is based on an organic synthetic resin which contains hydroxyl groups and esterified carboxyl groups in the form of carbalkoxymethyl ester groups and is water-dilutable by partial or complete acid-neutralization of amino groups present in the resin.

Abstract: A heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a crosslinking agent based on an organic compound which contains at least 2 .beta.-hydroxyalkyl ester groups. The binder mixture can additionally contain pigments, fillers, crosslinking catalysts, corrosion inhibitors and other paint auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by stoving.

Abstract: Multilayer coatings having at least one base coating containing pigments and at least one transparent top coating are applied from coating compositions on the substrates and cured together. The coating composition contains:(a) a film-forming synthetic resin;(b) an organic solvent in which the synthetic resin is soluble; and(c) polymer microparticles having polar and/or ionic groups on their surfaces and a diameter of about 0.01 to 5 microns obtained by emulsion polymerization of ethylene unsaturated monomers, these monomers having a portion comprising 2 or more double bonds per molecule and the microparticles are insoluble in the solution of (a) and (b).The base coat(s) have (d) pigments and the top coats are free of pigments.

Abstract: Amino-group bearing, low molecular weight 1,3-butadiene polymers used as stabilizers for molded or unshaped plastics in amounts of 0.01 to 2.0 weight percent referred to the plastic, where the amino-group bearing component is derived from a substituted piperidine having the general formula: ##STR1## where R represents similar or different alkyl groups having 1 to 3 carbon atoms.

Abstract: Metalized recording papers contain, located on a paper web, a firmly adhering varnish coating in which mineral fillers and/or pigments combined with wax particles are embedded and the external surface of the varnish coating is covered with a metal layer, preferably an aluminum layer obtained by vacuum evaporation.

Abstract: A process is created for incorporating surface structures into wood-cement boards which are pressed during cement hardening in a batch press and then are kept in clamping apparatus in the pressed state for a substantial length of time.In the invention the wood-cement boards freed from their plates and after their storage in the clamping apparatus are fed to a calendering system of which the calendering rolls are provided with a surface structure, the wood-cement boards moving between the calender rolls and being provided by these with surface structures on one or on both sides.

Abstract: Equipment for compacting trash, in particular cardboard cartons or the like, in upwardly open containers, characterized in that a compacting roll (4) moving to-and-fro on the trash (2) in the container (1) is provided which is rotatably supported from the free end of a pivot arm (5) mounted in articulating manner to a post (6) and of which the telescoped length (L) is adjustable.

Abstract: A polyamide molding composition filled with fine particulate metals for injection molding into practice hand grenades and shells which disintegrate into small pieces.

Abstract: A microfiche and a microfilm reader comprising automatic positioning of the film stage, characterized by the following features:(a) the microfiche (MFK) is provided with an index (2) of the information present in its individual images and of their x,y coordinates in optically coded form and with a timing track (4),(b) the reader comprises a read head (19) with electronic-optical sensors to read the optically coded index on the microfiche (MFK),(c) an electronic read/write memory (20) for storing the index (2) is connected to the read head (19),(d) provision is made for an alphanumeric keyboard (27) to feed-in a search concept (search key) and followed by an encoder (26) and a register (25) for storing the coded keyboard input,(e) a comparator (24) is connected to the memory (20) of the index (2) and the register (25) of the coded keyboard input, which determines the agreement between the search key and a concept present in the index,(f) the comparator (24) and the memory of the index are followed by appropria

Abstract: A method for quasi-hermetically covering physical structures on structure supports is described, which is low in its back-action on the structures to be protected and is especially suited for covering strain guage strips on cantilever beam measuring springs. In the method films made of a vacuum-tight, inorganic material are used as the covering substance, these films intimately joining both the structure to be protected and the surface zone of the support in the immediate vicinity of the structure. The use of films of monocrystalline structure, for instance mica films, is especially recommended, and it also is recommended to decrease the thickness of these films, once they are deposited, by suitable procedures such as etching or cleaving off crystal layers.

Abstract: A process for reacting alpha-olefins having a single branch of the following general structure: ##STR1## where a,b and c are 7.ltoreq.a+b+c+4.ltoreq.40 and where a.noteq.b, a.noteq.c, a<b, with carbon monoxide and water or alkanols in the presence of a catalytic system consisting of a cobalt compound and a promoter selected from the group pyridine, a non-ortho-substituted alkylpyridine or a mixture thereof at a pressure of at least 50 bars and at a temperature of 175.degree. to 230.degree. C. into an isomer mixture of carboxylic acids or carboxylic acid alkylesters which is more than 50% acids or esters formed by functionalizing carbon atoms C.sup.2 or C.sup.3 of the general formula where the reaction is carried out with a promoter to cobalt ratio of 2:1 to 15:1 (atoms of nitrogen to atoms of cobalt) and at olefin conversions exceeding 50%.

Abstract: An aqueous film-forming binder dispersion or emulsion for use as a rapid-hardening coating and which may contain plasticizers, flatting agents, fillers, pigments, additives and assistants contains at least one acrylate polymer having a film-forming temperature of above 60.degree. C. and at least one unsaturated polyester resin. It is used for producing rapid-hardening coatings on surfaces of various materials.

Abstract: Copolyether ester amides having a melting point between about 85.degree. and 140.degree. C. from:(A) lactams of omega-aminocarboxylic acids and/or equivalent amounts of dicarboxylic acids and diamines as polyamide-forming compounds; and(B) dicarboxylic acids and polyalkylene oxide diols as polyether ester forming compounds as thermoplastic adhesives for heat sealing textiles, wherethe polyamide forming compounds consist of at least 30% by weight of lauryllactam and the remaining compounds together with lauryllactam result in copolyamides which have melting points which lie in the range between about 90.degree. to 150.degree. C.;aliphatic dicarboxylic acids are used as the dicarboxylic acids; andcomponents A and B are used in the weight ratio from 93/7 to 35/65.

Abstract: Apparatus for sensing test values at test samples which uses an elastically supported mechanical sensor (3) moving relative to test samples (4) and at least one test value transmitter (11) with counter (9) detecting the relative motion between the sensor (3) and the test samples. At the instant of impact between sensor (3) and the test samples (4), a signal is generated which is used to store the test value present at the test value transmitter (11) at the instant of impact between the sensor (3) and the test samples (4) into a memory (13a,13b). The sensor consists of one part (2') which is fixed to the housing and other part (2") which is movable with respect to the fixed one. An oscillation or acceleration pickup (10) is mounted externally to the moving part (3) and generates the signal required to store the test value.A circuit (14) is provided to the oscillation or acceleration pickup (10) to distinguish between actual sensing signals and spurious ones.