Abstract: Disclosed are materials and/or shaped articles based on a starch which has been thermomechanically digested at elevated pressures and temperatures and with the addition of water and/or lower molecular weight plasticizing agents, said starch containing thermoplastic synthetic polymer compounds in an at least largely homogeneous mixture. The materials and/or shaped articles according to the invention are characterized in that their contents of synthetic thermoplastic polymer compounds is derived from aqueous polymer dispersions comprising a disperse polymer phase in an aqueous phase and that the synthetic thermoplastic polymer compounds have been incorporated in the starch in combination with the aqueous phase in such a manner that the starch digestion has been effected by the concomitant use of the aqueous phase of the polymer dispersions.

Abstract: The invention relates to aqueous emulsion copolymers of (meth)acrylates of long-chain alcohols in continuous aqueous phase, characterized in that they contain as storable disperse phase copolymers of the following monomer components:at least 50% by weight and preferably at least 60% by weight (meth)acrylates of C.sub.16-30 alcohols0 to 25% by weight and preferably 5 to 10% by weight (meth)acrylates of alcohols containing no more than 8 carbon atoms0.5 to 40% by weight and preferably 1 to 25% by weight olefinically unsaturated mono- and/or dicarboxylic acids or anhydrides containing more than 10 carbon atoms.The invention also relates to the use of these aqueous emulsion copolymers for depressing the pour or flow points of hydrocarbon mixtures, particularly crude oil or petroleum fractions, the described copolymers forming the disperse phase of aqueous emulsion copolymers in a highly concentrated, but readily mobile formulation for incorporation in hydrocarbon mixtures of the described type.

Abstract: Use of fluid to solid oligomeric esters of lactic acid and/or glycolic acid and dermatologically compatible derivatives thereof as resorbable carriers and/or film formers in preparations for covering undamaged and/or damaged areas of human or animal skin.

Abstract: The invention relates to a process for the production of (meth)acrylic acid esters of polyhydric alcohols by reaction of the reactants in the presence of acidic esterification catalysts with addition of .alpha.-substituted phenolic compounds, more particularly di-tert.-butyl hydroquinone, as polymerization inhibitors. The new process is characterized in that the reaction mixtures used are liquid at room temperature and are at least substantially free from solvents and/or azeotropic entraining agents and in that the water of condensation formed is removed from the gas phase of the reaction zone.

Abstract: The invention is a resorbable, viscous to solid wax for the mechanical staunching of blood on hard body tissue, particularly bones, based on oligomers of glycolic acid and/or lactic acid and derivatives thereof with monofunctional and/or polyfunctional alcohols and/or corresponding carboxylic acids. The new waxes are characterized by containing body-compatible salts of organic and/or inorganic acids which are formed by corresponding reaction of any free carboxyl groups present in the oligomer wax and/or are incorporated in the wax in homogeneous distribution as added salts.

Abstract: The invention describes a process for the partial or complete exchange of the free radical inhibitors (preparation inhibitor) from their admixtures with free radical-reactive--and especially polymerizable and/or cross-linkable--olefinically mono- and/or polyunsaturated compounds against free radical inhibitors or inhibitor systems (application inhibitor), the kind and amount of which are freely determinable.

Abstract: A method of using resorbable waxes for coagulation of blood on endogenous hard tissue, especially bone, which waxes consist of waxy polyester-oligomers of hydroxybarboxylic acids which are viscous to solid at body temperature. On the basis of their structure, these waxes are degradable by endogenous metabolic mechanism, wherein the rate of degradation can be adjusted.

Abstract: A clutch master assembly made of plastic material for an automotive vehicle. The assembly a plastic cylinder housing (1) and a piston (2) and a plastic bushing (3). The plastic bushing is arranged to allow it to be screwed in by means of a thread portion (4) which is located in the housing. By the screwing-in of the bushing a grooved disc (5) and a grooved cup (6) are secured in the assembly. The grooved cup is furnished with knobs (21, 22, 23) which exert a force in axial direction on the arrangement consisting of the grooved cup (6) and the grooved disc (5). The piston-side enlarged end of the piston rod (31, 104) is secured within the piston (2, 103) by a back injection.

Abstract: Described is a process for the simplified sterilization, by heating to high temperatures, of semisolid to solid preparations based on oligomers of lower carboxylic acids or their salts, as well as their transformation products with molecular weight regulating components, the preparations also optionally including biocompatible minerals. According to the invention, the materials to be sterilized are subjected to the action of high frequency oscillations in the microwave range (microwaves).

Abstract: An improved resorbable body and tissue compatible wax useful for the mechanical coagulation of blood on bones is produced by the reaction of, for example, lactic or glycolic acids with glycerol. The reaction mixture is then purified by forming a solvent suspension and washing with isopropanol to produce a purified wax essentially free of the hydroxycarboxic acid impurity, say, less than 0.1%.

Abstract: The invention relates to a process for the production of pure, substantially neutral, low-volatility organic compounds containing reactive olefinic double bonds from starting materials which contain these components together with small quantities of acidic reaction constituents and/or corresponding auxiliaries in the liquid phase by neutralization and separation of the salts formed. The process according to the invention is characterized in that, to obtain pure products which combine low residual acid values with low color standard numbers, even without distillation, the neutralization is carried out as dry neutralization using solid, finely powdered oxides, carbonates and/or hydroxides of the alkali and/or alkaline earth metals, if desired together with other insoluble basic metal oxide compounds, and the organic liquid phase is subsequently separated from the finely powdered solid phase. The oxides and/or hydroxides of calcium and/or magnesium are preferably used for neutralization.

Abstract: The invention relates to a process for the production of (meth)acrylic acid esters of polyhydric alcohols by reaction thereof with acrylic acid and/or methacrylic acid in the presence of acidic esterification catalysts with addition of polymerization inhibitors to the reaction mixture. The new process is characterized in that, where unsubstituted phenolic compounds are used as inhibitors, the esterification reaction is carried out with addition of active carbon to the reaction mixture. The preferred inhibitor is hydroquinone. In addition, the esterification reaction is preferably carried out in the absence of liquid solvents and/or azeotropic entraining agents.

Abstract: A rear brake pressure proportioning control device is disclosed, with a regulating piston (7) and with a valve closing member (9) being supported within a slidable control piston (8), the movement of the control piston interrupted at a predetermined rate of vehicle deceleration. A restriction (32) between the inlet and inlet chamber within which the control piston is disposed prevents a high rate of brake pressure increase from causing too high a rear brake pressure. A multiple-stage restrictor (26) is positioned in the inlet in order to prevent a very high rate of pressure increase of the brake pressure resulting in too low a rear brake pressure.

Abstract: A process for the production of (meth)acrylic acid esters of polyhydric alcohols by reaction of the reactants in the presence of acidic esterification catalysts with addition of polymerization inhibitors to the reaction mixture and purging of the reactor interior with an oxygen-containing gas stream. The process is characterized in that that part of the reactor interior filled with gas phase is charged with finely divided liquid droplets containing polymerization inhibitor.

Abstract: The invention is a resorbable, viscous to solid wax for the mechanical staunching of blood on hard body tissue, particularly bones, based on oligomers of glycolic acid and/or lactic acid and derivatives thereof with monofunctional and/or polyfunctional alcohols and/or corresponding carboxylic acids. The new waxes are characterized by containing body-compatible salts of organic and/or inorganic acids which are formed by corresponding reaction of any free carboxyl groups present in the oligomer wax and/or are incorporated in the wax in homogeneous distribution as added salts.

Abstract: A clutch master assembly made of plastic material for an automotive vehicle. The assembly a plastic cylinder housing (1) and a piston (2) and a plastic bushing (3). The plastic bushing is arranged to allow it to be screwed in by means of a thread portion (4) which is located in the housing. By the screwing-in of the bushing a grooved disc (5) and a grooved cup (6) are secured in the assembly. The grooved cup is furnished with knobs (21, 22, 23) which exert a force in axial direction on the arrangement consisting of the grooved cup (6) and the grooved disc (5). The piston-side enlarged end of the piston rod (31, 104) is secured within the piston (2, 103) by a back injection.

Abstract: Method of reducing the pour-point and improving the flowability of petroleum oil or a fraction thereof by adding thereto a flowability-improving quantity of at least one copolymer of (a) an acrylic acid ester, a methacrylic acid ester, or a mixture of an acrylic acid ester and a methacrylic acid ester, and (b) not more than 20% by weight, based on the weight of the copolymer, of acrylic acid, methacrylic acid, or a mixture of acrylic acid and methacrylic acid, and wherein said esters in component (a) are esters of a C.sub.16 or higher alcohol or an alcohol mixture wherein at least 75% by weight thereof is one or more alcohols containing at least 16 carbon atoms; and the compositions resulting therefrom.

Abstract: On a table (10), a support element (14, 15) is provided on the table leg (13) and below the tabletop (11). This support element is pivotable about the vertical axis of the table leg (13). When the support element (14, 15) is pivoted outward, it can serve as a support for a tabletop (21) and is formed accordingly. The tabletop (21) has an elongated engagement element (24) on its underside, which element upon connection positively engages the inside of a corresponding elongated recess (23) of the support element (14, 15). A table connection formed in this way is very stable, and makes it possible for the thus-formed table arrangement to be moved about practically like a rigid unit. Also, it is possible for a single person without additional help, using this connection device, to couple one table (10) to an adjacent tabletop (21).

Abstract: Hotmelt adhesives which, after heating, are capable of polymerization under the effect of atmospheric oxygen and which essentially consist of a solid reactive component containing at least one polymerizable ethylenic C.dbd.C double bond and a polymerization-initiating organoboron compound and, if desired, other standard auxiliaries.

Abstract: A new method of forming agglomerates of fine powdered solids comprises dispersing the powder in a chemically inert carrier liquid that also contains a dissolved binder precursor polymer with cyclic dicarboxylic acid anhydride groups on the polymer chain. The dispersion is shaped and then brought into contact with a second carrier liquid that contains polyamines. The polyamines react with the anhydride groups on the other polymer to form an insoluble binder polymer that hardens the shaped dispersion. The hardened shape can then be separated from the liquids and/or further reacted if desired to produce amide bonds in the final agglomerates. The method is useful for forming mechanically and thermally stable agglomerates of such materials as activated carbon, metals dispersed on catalyst carriers, etc.