Abstract: A modified regenerated cellulose film comprising regenerated cellulose and certain modified starches is clear and transparent and has substantially the same mechanical and optical properties as conventional unmodified regenerated cellulose films. The modified starches used are starches degraded by oxidation and/or hydrolysis, uncrosslinked ethers or esters of starch or of starches degraded by oxidation and/or hydrolysis or mixtures thereof. The amount of modified starch used represents 1 to 49% by weight, preferably 5 to 30% by weight, based on the total weight of cellulose and modified starch. Methods for the production of said modified regenerated cellulose film either by the viscose process or by the cuprammonium process are also described.

Abstract: The present invention relates to a process and a composition for the manufacture of an artificial paper requiring neither calendering nor biorientation, the paper obtained having in addition to the characteristics proper to cellulose paper, improved physical properties, such as better impermeability to water vapor and air, resistance to greases and dimensional stability under various atmospheric conditions.

Abstract: Process for the manufacture of maleic anhydride which comprises contacting in the vapor phase a mixture of butane and molecular oxygen with a catalyst comprising in chemical combination phosphorus, vanadium, oxygen and at least one metal activator selected from the group consisting of cobalt, nickel and cadmium as well as said catalyst used in this process.

Abstract: Telechelic or semi-telechelic polymers, the average composition of which has the (Y).sub.y formulaV--(X).sub.x --(Y).sub.y --ZwhereinV is a hydrogen atom or Z,X is the radical originating from an ethylenically monomer carrying a polymerizable >C = C< group and at least one other reactant group selected from the group consisting of OH.sub.2 ##EQU1## (R and R' being a hydrogen atom or a lower alkyl radical), COOH or anhydride and ##EQU2## Y is the radical originating from an ethylenically unsaturated monomer carrying only a >C = C< group,Z is a hydrocarbon radical carrying at least one reactive group selected from OH, COOH and NH.sub.2,x is a number between 0 to 10,y is the required number of molecules of Y to ensure that the molecular weight of the polymer chain is between 2000 and 8000,The x radicals X and the y radicals Y being statistically distributed along the --(X).sub.x --(Y).sub.

Abstract: Continuous process for the preparation of dry and storage-stable sodium vinyl sulfonate which comprisesA. adding, in a first stage, an alkali metal hydroxide to the starting aqueous solution of sodium vinyl-sulfonate in an amount such that the solution contains from 40 to 300 mg. of alkaline metal hydroxide per 100 g. of sodium vinyl-sulfonate,B. concentrating the resulting alkaline solution by evaporation in a second stage at a temperature of from 50.degree. to 100.degree.C. at a pressure of from 40 to 200 mm.Hg. to give an aqueous solution having a sodium vinyl-sulfonate concentration of from 40 to 55% by weight andC. in a third stage, subjecting the resulting concentrated solution to drying at a temperature of from 50.degree. to 100.degree.C. at a pressure of from 40 to 200 mm.Hg. to give solid sodium vinyl-sulfonate, the water content of which is, at most, 2% by weight.

Abstract: Phenyl-2-pyrrolidinones of the formula ##SPC1##Wherein R is a halogen or trifluoromethyl, R.sub.1 is lower alkyl, lower alkenyl, lower alkynyl, phenyl or halogen-substituted phenyl, R.sub.2 is hydrogen, lower alkyl or phenyl and R.sub.3 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cyclopentyl or benzyl, as well as the cis and trans diastereoisomers thereof, are active on the central nervous system. In particular they have valuable anxiolytic and antidepressive properties. Processes for their preparation are given.

Abstract: Compounds with multiple acrylic radicals, the average composition of which has the general formula:X--y--(z).sub.m.sub.--p.sub.--1 ].sub.nWherein X is the radical derived by removing the OH groups from the carboxyl groups of an organic carboxylic acid containing n COOH groups and the number of carbon atoms of which is between 14 and 90,Y is the radical derived by removing m-p hydrogen atoms from the hydroxyl groups of an organic compound containing m OH groups,Z is the monovalent radical derived by removing the OH group from the carboxyl group of a monocarboxylic acid having at least one terminal CH.sub.2 =CH--COO-- radical,n is a whole number from 1 to 6,m is a whole number from 2 to 8, andp is a number of from 0 to 2.5With the proviso that m-p-1 is a positive number different from zero and that n(m-p-1) is between 2 and 15, processes for the preparation thereof, polymers obtained by polymerization thereof and compositions of matter, in particular UV inks or varnishes, comprising said compounds.

Abstract: Thieno[3,4-d]pyrimidines of the general formula: ##SPC1##Wherein R.sub.1 is hydrogen, halogen, alkyl, alkoxy, amino, alkylamino, allylamino, hydroxy-alkylamino, cycloalkylamino, phenylamino, dialkylamino, di(hydroxyalkyl)-amino, alkyl-hydroxyalkyl-amino, pyrrolidino, piperidino, alkylpyrrolidino, alkylpiperidino, morpholino, alkyl-2-morpholino, alkyl-3-morpholino, dialkyl-3,5-morpholino, N-methylpiperazino, all said alkyl having 1 to 7 carbon atoms, said alkoxy having 1 to 5 carbon atoms and said cycloalkyl having 3 to 6 carbon atoms, R.sub.2 has the same meanings as R.sub.1 except alkyl and with the proviso that R.sub.2 is other than hydrogen or halogen, when R.sub.1 represents hydrogen or halogen and R.sub.3 is hydrogen or alkyl having 1 to 7 carbon atoms, as well as the addition salts thereof with pharmaceutically acceptable acids are, in particular, active on the cardiovascular system. Processes for their preparation are given.

Abstract: An apparatus for manufacturing a laminate having a width of at least 30 cm. by means of a solventless adhesive, wherein, in a first stage, means are provided for continuously supplying a solventless adhesive to a distributor means comprising a pre-dosing element and an elastic-surfaced rotating element in such a manner as to coat the surface of the elastic-surfaced rotating element with a layer of solventless adhesive having a thickness of from 5 to 50 microns, the layer then being substantially transferred to a moving film to be laminated, the circumferential speed of the elastic-surfaced rotating element and the speed of linear displacement of the film being in a ratio of from 1:10 to 1:50, so that the film receives a layer of solventless adhesive of a thickness of from 0.5 to 5 microns, and, in a second stage, means are provided for bonding in a known manner the film coated in this manner to another film to form a laminate.