Abstract: Exemplary embodiments of the present disclosure include paper, methods of making paper, and the like.

Abstract: The invention relates to a breathing mask (1) having a display unit (5) comprising a display screen, the function of the unit being to display measurement data in the visual field of the mask wearer, the display screen being implemented by using a mechanical and/or electronic light modulator, the scales, symbols or other signs produced in the light modulator transmitting the measurement data to the wearer.

Abstract: The invention relates to a process for the production of paper by adding to an aqueous fiber suspension, which possibly contains a filler, auxiliary agents for improving retention and/or dewatering, the auxiliary agents being a cationic long-chain polyacrylamide and an aluminum salt, and by dewatering the obtained fiber suspension during the sheet-forming stage. According to the invention, the said aqueous fiber suspension, possibly containing a filler, to which the cationic long-chain polyacrylamide has first been added, is subjected to shearing forces, whereafter there is added to it, directly before sheet forming, a polymeric aluminum salt or an aluminum salt, in which case a base or an acid is added, when necessary, to the said fiber suspension so that the pH be within the range 7-9 before the sheet forming, in which case aluminum hydroxy particles having anionic surface charges will be formed in situ.

Abstract: A catalyst is made of at least two metal foil strips, the transverse corrugations having been formed in at least one of them. The metal foil strips are formed into a honeycomb containing channels. The strips are coated with a support or with supports, and at least one catalytically active agent such as a noble metal is added to the coated strips in order to produce a catalytic surface. In this case the catalytic surface has the physical structure derived from the coating. The honeycomb has at least two catalytic surfaces differing from each other with respect to at least the support or the physical structure.

Abstract: The invention relates to a process for the treatment of waste waters of the forest industry. According to the invention, waste water is pre-treated biologically, whereafter the further treatment is carried out by using Fe(II) salt and hydrogen peroxide.

Abstract: The object of the invention is a process for preparing a crystalline, stable sodium percarbonate, in which polymers of gross formulas (I or II) are added in the preparation process to control the crystal form of the sodium percarbonate and to coat the crystals, the molecular weight of the polymers varying in the range from 500 to 1,000,000 g/mol, or salts of these polymers or mixtures of polymers of formulas (I and It) or of their salts are added. Formula (I) denotes (I) and formula (II) denotes (II): HO--(--CH.sub.2 --CH.sub.2 --O).sub.r --(CHCH.sub.3 --CH.sub.2 --O).sub.s --(--CH.sub.2 --CH.sub.2 --O).sub.t --H and X<100% and Y>0%, R.sub.1 is --H or --CH.sub.3, R.sub.2 is --COOM, in which M may be H.sup.+ or a cation, in particular Na.sup.+, K.sup.+ or NH.sup.+.sub.4, R.sub.7 and R.sub.8 may be identical or different, being --COOM, --CONR.sub.5 R.sub.6, H, --OH or --COO(--CH.sub.2 --CH.sub.2 --O).sub.r --(CHCH.sub.3 --CH.sub.2 --O).sub.s --(--CH.sub.2 --CH.sub.2 --O).sub.t --H and R.sub.5 and R.sub.

Abstract: This invention discloses transgenic plants, such as transgenic tobacco and potato, having resistance to multiple viral taxonomic groups using parts of the 2,5A oligoadenylate pathway. In particular, said plants are genetically engineered to contain a DNA sequence encoding at least one polypeptide having a 2,5A synthetase activity. By this means a step in the 2,5A oligoadenylate pathway heretofore believed to be missing in all plants is provided so that viral infection in the transgenic plants is inhibited via a 2,5A dependent endonuclease. Moreover, this invention relates to a process for the production of said transgenic plants by transfection with a genetically engineered DNA sequence encoding at least one polypeptide having a 2,5A synthetase activity.

Abstract: The invention relates to a method for impregnating alumina-containing catalyst support with platinum. In the method a platinum-containing solution is prepared by using a compound which contains bivalent platinum. The method comprises a stage during which the said platinum-containing solution is oxidized in order to form a solution which contains tetravalent platinum, from which solution platinum is adsorbed on the support.

Abstract: The invention relates to a catalyst intended for purifying diesel exhaust gases, the catalyst comprising a honeycomb and a support which has been prepared by using titanium dioxide and an inorganic sol, and at least one catalytically active agent.

Abstract: A metal alloy in which the highest individual metal concentration is nickel and which always includes at minimum 4% by weight aluminum is used as the substrate for catalysts for purifying exhaust gases. Chromium, iron, cobalt, molybdenum and titanium are among the other metals possible.

Abstract: A controllably active fertilizing preparation in the form of an emulsion-suspension or an emulsion is comprised of:a) 30-90% by weight of mixtures containing plant nutrients,b) 5-50% by weight of water,c) 2-20% by weight of an oleophilic organic substance,d) 1-25% by weight of a surface-active substance, ande) 0.1-10% by weight of an acid or its mixture, salt or anhydride. The acid component improves the extraction of phosphor.

Abstract: A fertilizer controllably affecting composition which is easy to handle and which has enormous ability to transfer nitrogen to plant organism and improve the growth, has now been invented by including into it 30-90% by weight of a compound containing plant nutrients, 6-50% by weight of water, 2-20% by weight of oil and 2-25% by weight of water-in-oil type (w/o) surfactant, whereby the composition is in the form of a stable paste or an emulsion slurry.

Abstract: The present invention relates to a method for simultaneous continuous-action production of alkali metal or ammonium peroxodisulphate salts and alkali metal hydroxide. The electrolytic phase of the method is performed in a three-space electrolytic cell (1), into the middle space (3) whereof alkali metal sulphate is conducted, into the anode space (4), ammonium or alkalimetal sulphate, or a mixture thereof is conducted, and into the cathode space (2), water or diluted alkali metal hydroxide is conducted. Direct current is conducted through the electrolytic cell (1), whereby the sulphate ions pass into the anode space (4) and are oxidized into peroxodisulphate ions, thus producing alkali metal or ammonium peroxodisulphate, which is transformed into saline form in a fashion known in itself in the art, and the alkali metal ions pass into the cathode space (2) and form alkali metal hydroxide.

Abstract: The invention relates to a method for producing alkali metal phosphate, in particular monopotassium phosphate or its aqueous solution, by reacting fertilizer-grade phosphoric acid with alkali metal chloride at 350.degree. . . . 700.degree. C. to produce alkali metal metaphosphate, hydrolyzing thus obtained solid reaction product, removing the insoluble residue containing impurities from the hydrolysis solution in order to achieve a pure solution of alkali metal phosphate, and if further desired, crystallizing and separating the alkali metal phosphate from said aqueous solution.

Abstract: The invention relates to a method of preparing microcrystalline titanium dioxide, in which a) the solid titanium dioxide hydrate is treated with a base, b) the precipitate treated with the base is treated with hydrochloric acid, and c) the precipitate treated with the base and the hydrochloric acid is neutralized. It has been noted that useable rutile crystals, a more appropriate crystal size and crystal size distribution and that chemicals can be saved if as the final hydrochloric acid content of the stage a) is adjusted a lower value than usually, being about 8 to 25 g/liter, for the precipitation of microcrystalline titanium dioxide. Hereby the neutralization of the stage c) can also be carried out by raising the pH to a lower value than usually, i.e. the value about 4.0 to 6.0.

Abstract: The invention relates to a hydrogenation catalyst for use in the preparation of hydrogen peroxide and to a method for the preparation of the catalyst. The hydrogenation catalyst contains in the main platinum group metal, of which more than 50 wt % is palladium. According to the invention, at least one additional metal is added to the platinum group metal.

Abstract: A face shield comprising a frame (1), a glass (2) attached to the frame, a padding (3) between the frame and the face and an attaching portion, for example, a ribbon (4) encircling the head, and to which face shield air is led. The frame is hollow so that the air led into the face shield is directed into the hollow frame and the frame comprises openings through which the air is discharged inside the face shield.

Abstract: A method for preparing anhydrous ferric chloride from a hydrous solution containing ferric chloride that contains organic substances and/or ferrous chloride. In the method, water is removed from a ferric-chloride water solution or a solution, in which at least a portion of the ferrous chloride has been converted by oxidation into ferric chloride, by drying in an atmosphere containing hydrochloric acid. The anhydrous ferric chloride is refined by sublimating it into gas phase in a chlorine-containing atmosphere and by subliming it into a pure crystalline ferric chloride.

Abstract: The present invention relates to a procedure for cleaning a sinter used for filtering a metal catalyst suspension. As taught by the invention, the sinter is treated with an aqueous solution of hydrogen peroxide for displacing the metal catalyst left in the pores of the sinter with the aid of the gas produced by the decomposition of the hydrogen peroxide, caused by the metal catalyst, until gas formation ceases, indicating that no significant quantities of metal catalysts are left in the sinter. Such hydrogen peroxide decomposition is produced by the so-called anthraquinone process, in which an anthraquinone derivative is dissolved in an organic solvent then reduced with the aid of hydrogen gas in the presence of a catalyst to the corresponding anthraquinone derivative; the catalyst is then separated from such solution by filtering. Then, such corresponding anthraquinone derivative is oxidized with air or oxygen, whereby it reverses to the state preceding hydrogenation, i.e.

Abstract: The invention relates to a process for converting anthrahydroquinone dissolved in an organic solvent to hydrogen peroxide and anthraquinone by causing a mixture of oxygen and anthrahydroquinone to flow concurrently through a reaction zone. According to the invention, the mixture of oxygen and anthrahydroquinone is caused, as an almost continuous mixed dispersion, to flow through the tubular reaction zone at such a velocity that the vacuum-pipe velocity of the liquid therein is higher than 0.05 m/s. The ratio of the length of the tube used as the reactor to its diameter is at minimum approx 10, and it may contain a static mixer made up of one or several parts.