Abstract: A hose clip which comprises a flexible strap adapted to be placed around a selected portion of a hose and to be tightened around such selected portion by turning a bolt or screw. An elongated concavo-convex strip-shaped resilient insert is adjacent a portion of the internal surface and extends in the circumferential direction of the strap opposite the mechanism which serves to increase or reduce the effective length of the strap. The convex external surface of the insert is biased in a direction away from the adjacent portion of the internal surface of the strap by one or more springs which are disposed between the insert and the strap and are of one piece with the insert. At least one end of the insert is slidable along the strap. The spring or springs ensure that the strap does not become loose as a result of aging of the material of the adjacent portion of the hose.

Abstract: The invention provides a compound of the formula[NH.sub.2 NH.sub.2 ].sub.a [C.sub.6 H.sub.3 (COOH) (SO.sub.3 H) (OH)].sub.bwhereina is 1 andb is from 1 to 2.The compound is useful for stabilizing tin (II) compounds against oxidation, in particular in the electrolytic coloring of aluminum or aluminum alloys.

Abstract: Electrically conductive halide doped tin-IV-oxide is disclosed which contains divalent tin in an amount not exceeding 2% by weight and also contains 0.1 to 2.5% by weight, particularly 0.1 to 1.0% by weight, of halide.Methods for producing the tin-IV-oxide are also disclosed. The product is suitable for imparting electric conductivity in the form of a filler or pigment to a variety of products such as plastics, lacquer, varnish, paint, paper, textiles and toners, without discoloration of the products.

Abstract: The invention provides a compound of the formula[NH.sub.2 NH.sub.2 ].sub.a [C.sub.6 H.sub.3 (COOH) (SO.sub.3 H) (OH)].sub.bwhereina is 1 andb is from 1 to 2.The compound is useful for stabilizing tin (II) compounds against oxidation, in particular in the electrolytic coloring of aluminium or aluminium alloys.

Abstract: A method is disclosed for the preparation of tetraalkyl-tin wherein tin-tetraacetate is first dispersed in tetrahydrofuran and trialkyl-aluminum is slowly added to the dispersion in an amount sufficient to cause complete reaction. The reaction is carried out at a temperature of <80.degree. C. The reaction mixture is then heated to the reflux temperature of the tetrahydrofuran for about 1 to 2 hours and until complete reaction. The aluminum triacetate is then removed and the tetrahydrofuran is distilled off.

Abstract: A method and composition are disclosed for the production of electrically conducting, IR reflecting, fluorine-doped tin oxide layers on surfaces of a glass or ceramic objects or of enamel coatings. The method comprises applying an organic solution of a mixture of alkyltin oxide and trifluoroacetic acid to the surface, which has been heated to 400.degree. to 700.degree. C., wherein trifluoroacetic acid is present in the solution in a substoichiometric amount. The composition useful for carrying out the method comprises an organic solution of alkyltin oxide and trifluoroacetic acid in a substoichiometric amount relative to the alkyltin oxide. Variable doping with fluorine and, with that, optimization of the surface resistance value as well as of the IR reflection become possible by means of the invention.

Abstract: A method is disclosed for the preparation of anhydrous tin-(IV)-carboxylate. Metallic tin or Sn-(II)-acetate is reacted with an excess of acetic acid anhydride under agitation and at temperatures of 50.degree. to 150.degree. C. Oxygen is passed through the reaction mixture or an oxygen yielding agent is added thereto. The tin-(IV)-acetate thus formed, which is useful, per se, is separated from the reaction mixture and further reacted with a carboxylic acid with more than four carbon atoms or an acid anhydride corresponding to said carboxylic acid. The reaction is carried out at temperatures of about 80.degree. to 150.degree. C. and the liberated acetic acid anhydride or acetic acid is removed by distillation under vacuum.

Abstract: A method is disclosed for the preparation of anhydrous tin-dicarboxylate-dihalide. Anydrous tin-(II)-halide is reacted with an excess amount of acetic acid anhydride at temperatures of about between 20.degree. to 100.degree. C. while passing oxygen through the reaction mixture or adding an oxygen yielding agent such as hydrogen peroxide. The tin-diacetate-dihalide thus formed is separated and is further reacted with aliphatic carboxylic acid having more than 4 carbon atoms or the corresponding acid anhydrides at the temperatures of 80.degree. to 150.degree. C. while the liberated acetic acid anhydride or acetic acid is removed by distillation.

Abstract: A method is disclosed for the production of dialkyl-tin-dichlorides whose alkyl groups have 1 to 22 carbon atoms. Trialkyl-aluminum is slowly added to a solution of tin-diacetate-dichloride and tetrahydrofuran in the mole ratio of about 2:3. The aluminum-triacetate precipitating during the reaction is removed by filtration and the tetrahydrofuran used as solvent is removed by distillation.

Abstract: A method and composition are disclosed for the production of electrically conducting, IR reflecting, fluorine-doped tin oxide layers on surfaces of a glass or ceramic objects or of enamel coatings. The method comprises applying an organic solution of a mixture of alkyltin oxide and trifluoroacetic acid to the surface, which has been heated to 400.degree. to 700.degree. C., wherein trifluoroacetic acid is present in the solution in a substoichiometric amount. The composition useful for carrying out the method comprises an organic solution of alkyltin oxide and trifluoroacetic acid in a substoichiometric amount relative to the alkyltin oxide. Variable doping with fluorine and, with that, optimization of the surface resistance value as well as of the IR reflection become possible by means of the invention.

Abstract: A liquid preparation for the production of electrically conductive and infrared-reflecting, fluorine-doped tin oxide layers on glass or glass-ceramic surfaces is disclosed. The preparation has a content of tin-IV-chlorides, which optionally comprise organic groups. The preparation contains also tin-II-fluoroborate as the sole doping agent. A preferred preparation comprises30 to 89% by weight of tin-IV chloride, which optionally comprise organic groups,0.5 to 7.5% by weight of tin-II fluoroborate in the form of a 30 to 60% by weight aqueous solution and10 to 62.5% by weight of a polar organic solvent.The inventive preparation is procedurally simple to handle and contains no chemically aggressive or toxic compounds. The components of the preparation are easily accessible, cognate and inexpensive chemicals, yet permit high-grade surface layers to be produced on glass or glass-ceramic. A method for forming the layers is also disclosed.

Abstract: A liquid preparation for the production of electrically conductive and infrared-reflecting, fluorine-doped tin oxide layers on glass or glass-ceramic surfaces is disclosed. The preparation has a content of tin-IV-chlorides, which optionally comprise organic groups. The preparation contains also tin-II-fluoride as the sole doping agent. A preferred preparation comprises30 to 89% by weight of tin-IV chloride, optionally having organic groups,1 to 5% by weight of tin-II fluoride,10 to 55% by weight of a polar organic solvent and0 to 10% by weight of water.The inventive preparation is procedurally simple to handle and contains no chemically aggressive or toxic compounds. The components of the preparation are easily accessible, cognate and inexpensive chemicals, yet permit high-grade surface layers to be produced on glass or glass-ceramic. A method for forming the layers is also disclosed.

Abstract: A liquid preparation for the production of electrically conductive and infrared-reflecting, fluorine-doped tin oxide layers on glass or glass-ceramic surfaces is disclosed. The preparation has a content of tin-IV-chlorides, which optionally comprise organic groups. The preparation is produced by dissolving27.5% to 89.5% by weight of tin-IV chlorides, with or without organic groups0.5 to 5.0% by weight of tin-II fluorosilicate in the form of a 30 to 50% by weight aqueous solution10 to 67.5% by weight of a polar organic solventand optionally filtering off the precipitated silicic acid.The inventive preparations are procedurally easy to handle. Their active components are easily accessible and inexpensive chemicals. They permit surface layers with a particularly low surface resistance to be produced on glass or glass-ceramic substrate surfaces.

Abstract: Modified polyethylene with an average molecular weight of 500 to 10,000 is disclosed. The polyethylene has one or more laterally bound group(s) of the formula--CONH(CH.sub.2).sub.n NR.sup.1 R.sup.2wherein R.sup.1 and R.sup.2 are the same or different and represent a low molecular weight alkyl group with 1 to 4 carbon atoms and n is 2 or 3, or its salts with aliphatic carboxylic acids with 1 to 3 carbon atoms. The modified polyethylene is applied in the form of an aqueous dispersion, to glass surfaces, especially the external surfaces of glass containers. The modified polyethylene is suitable especially for so-called cold-end finishing. The protective layers obtained have very good smoothing values. The protective layers are resistant to the repeated action of hot, aqueous washing liquors and retain their smoothness. Glass containers, provided with the protective layer, can be labelled in the usual manner.

Abstract: Polyethylene with an average molecular weight of 500 to 10,000 is disclosed having one or several laterally bound group(s) of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a lower alkyl group with 1 to 4 carbon atoms. R.sup.3 is alkyl or aryl, X is a halogen or sulfate residue and n is 2 or 3. A method for the preparation of the modified polyethylene is also disclosed. The polethylene, preferably in the form of an aqueous dispersion, is applied to glass surfaces, especially the external surface of glass containers. The modified poyethylene is especially suitable for the so-called cold-end finishing of glass. The protective layers obtained have very good smoothness values. The protective layers are resistant to the repeated action of hot aqueous washing liquors and retain their smoothness. The glass containers, provided with the protective layers, may be labelled in the usual manner.

Abstract: Polyethylene with an average molecular weight of 500 to 10,000 is disclosed having one or several laterally bound group(s) of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a lower alkyl group with 1 to 4 carbon atoms, R.sup.3 is a bivalent alkylene residue and n is 2 or 3. A method for the preparation of the modified polyethylene is also disclosed. The polyethylene, preferably in the form of an aqueous dispersion, is applied to glass surfaces, especially the external surface of glass containers. The modified polyethylene is especially suitable for the so-called cold-end finishing of glass. The protective layers are resistant to the repeated action of hot aqueous washing liquors and retain their smoothness. The glass containers, provided with the protective layers, may be labelled in the usual manner.

Abstract: Aqueous polyethylene dispersions, suitable for improving the surface characteristics of glass, are disclosed. The dispersions contain 40 to 100 percent by weight, based on the polyethylene, of a mixture of(a) amine oxides of the general formula ##STR1## wherein R.sup.1 is alkyl with 7 to 17 carbon atoms;n is 2 or 3 and(b) the salt of an amine of the general formulaR.sup.2 N[(C.sub.2 H.sub.4 O).sub.m H].sub.2 IIwith a physiological safe carboxylic acid, whereinR.sup.2 is alkyl with 8 to 18 carbon atoms andthe sum of the units m is 20 to 100,the components (a) and (b) being present in a ratio by weight of 4:1 to 1:1.The dispersions may be obtained by stirring a melt of the polyethylene, which contains component (b), into water, which contains component (a).

Abstract: Polyethylene with an average molecular weight of 500 to 10,000 is disclosed having one or several laterally bound group(s) of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a low molecular weight alkyl group with 1 to 4 carbon atoms and n is 2 or 3. A method for the preparation of the modified polyethylene is also disclosed. The polyethylene, preferably in the form of an aqueous dispersion, is applied to glass surfaces, especially the external surface of glass containers. The modified polyethylene is especially suitable for the so-called cold-end finishing of glass. The protective layers obtained have very good smoothness values. The protective layers are resistant to the repeated action of hot aqueous washing liquors and retain their smoothness. The glass containers, provided with the protective layers, may be labeled in the usual manner.

Abstract: Modified polyethylene with an average molecular weight of 500 to 10,000 is disclosed. The polyethylene has one or more laterally bound group(s) of the formula--CONH(CH.sub.2).sub.n NR.sup.1 R.sup.2wherein R.sup.1 and R.sup.2 are the same or different and represent a low molecular weight alkyl group with 1 to 4 carbon atoms and n is 2 or 3, or its salts with aliphatic carboxylic acids with 1 to 3 carbon atoms. The modified polyethylene is applied in the form of an aqueous dispersion, to glass surfaces, especially the external surfaces of glass containers. The modified polyethylene is suitable especially for so-called cold-end finishing. The protective layers obtained have very good smoothing values. The protective layers are resistant to the repeated action of hot, aqueous washing liquors and retain their smoothness. Glass containers, provided with the protective layer, can be labelled in the usual manner.

Abstract: A two-step process for electrolytically coloring aluminum with metal salts is disclosed in which an oxide layer, produced by direct current in an acidic solution, is colored by means of an alternating current through an electrolyte containing a tin(II) salt. The electrolyte inventively contains 1 to 10 g/l iron(II) salts of sulfuric acid, a sulfuric acid with at most 8 carbon atoms or of sulfamic acid. The process prevents the formation of deposits in the electrolytes on standing. In addition, a considerable color-enhancing effect can be achieved.