Abstract: A biodegradable mould material or polymer blend with a high resistance to moisture is obtained by mixing thermoplastically processable starch with a cellulose derivative, such as a cellulose ester.

Abstract: A moldable non gelatin containing hydrophilic polymer composition containing between 5 and 25% water.

Abstract: Novel injection molded pharmaceutical capsules of starch having a cap member, a body member, means to form a plurality of compartments therein; and means for locking the cap and body members together to form a tamper-resistant connection.

Abstract: Novel injection molded pharmaceutical capsules of gelatin having a cap member, a body member, means to form a plurality of compartments therein, and means for locking the cap and body members together to form a tamper-resistant connection.

Abstract: Capsules and other shaped products formed from a moldable starch composition in an injection molding device is disclosed in the present invention. The composition comprising starch having a molecular mass range of 10,000 to 20,000,000 Dalton, and a water content range from 5 to 30% by weight. The starch contains about 0 to 100% of amylose, and about 100 to 0% of amylo-pectin.

Abstract: A moldable hydrophilic polymer composition, preferably gelatin, for use in an injection molding device preferably controlled with a microprocessor. The composition has a molecular mass range of 10,000 to 2,000,000 Dalton or a molecular mass range of 10,000 to 2,000,000 and 10,000,000 to 20,000,000 Dalton. The composition has a water content range from 5 to 25% percent by weight.

Abstract: A method of producing capsules of a moldable hydrophilic polymer composition, preferably gelatin, using a combination of an injection molding device with a microprocessor to precisely control the conditions of time, temperature, pressure and water content of the hydrophilic polymer composition, in a cyclic molding process.

Abstract: Methods are disclosed for the sealing of gelatin capsules having hard shell coaxial cap and body parts which overlap when telescopically joined. Also described are apparatus and sealing fluids to seal the capsules.

Abstract: Method to condition water-swellable hydrocolloids for use in mechanical forming processes such as die molding or injection molding. To avoid long conditioning times at high temperature, the hydrocolloids are conditioned to the predetermined water content at ambient temperature and then rapidly heated, just before processing, in a gaseous stream loaded with water to the equilibrium conditions needed to maintain the predetermined water content of the hydrocolloids at the high process temperature of the mechanical forming.

Abstract: A gelatin containing microgel, alpha-gelatin, oligomers of alpha-gelatin, and less than 25% by weight of the gelatin, of fragments of alpha-gelatin having a molecular weight of no more than 9.times.10.sup.4.

Abstract: Novel gelatins which contain microgel, oligomers of .alpha.-gelatin, .alpha.-gelatin and not more than 25 percent by weight of fragments of .alpha.-gelatin (peptides) with a molecular weight of less than 9.times.10.sup.4 are used as binders in layers of photographic materials.Photographic additives are readily compatible with the gelatins. Furthermore, the good viscosity characteristics and short setting times of the gelatins also facilitate the production of photographic materials.

Abstract: Gelatins which have a high setting speed but a lowered viscosity are prepared by lowering their microgel content. For this purpose, aqueous gelatin solutions are subjected to the action of mechanical shearing forces, the shear stresses being between 10.sup.4 and 10.sup.8 Pascal. The peptide content of the gelatin remains virtually unchanged with this process.

Abstract: A process for incorporating photographic additives which are sparingly soluble to insoluble in water into a free-flowing, aqueous preparation which contains a hydrophilic colloid and is used to prepare photographic layers, by mixing the photographic additives with a combination of at least one non-ionic alkylphenol/alkylene oxide or diphenolmethane/alkylene oxide adduct and at least one anionic esterification product of these adducts and, optionally, a water-immiscible solvent and then finely dispersing this mixture in an aqueous solution of the hydrophilic colloid, which solution contains further water-soluble or dispersed water-insoluble constituents optionally.Spontaneous emulsions of the photographic additives with good fine dispersion are obtained in this way without high expenditure of mechanical energy. The emulsions are suitable for the preparation of photographic layers, which are used in photographic materials with improved characteristics.

Abstract: Methods are disclosed for the sealing of gelatin capsules having hard shell coaxial cap and body parts which overlap when telescopically joined. Also described are apparatus and sealing fluids to seal the capsules.