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| Number | Title | Issue Date |
| 4036948 | L-ascorbic acid tablets L-ascorbic acid tablets which contain more than about 90 weight percent of L-ascorbic acid and have a satisfactory mechanical strength can be obtained by spray-coating L-ascorbic acid powder capable of passing through a 200-mesh screen, with a solution of... | 07/19/1977 |
| 4035146 | Binding of antimicrobial compounds to a hydroxyl containing substrate with cyanuric chloride Methods and compositions are disclosed for chemically bonding an antimicrobial compound to an hydroxyl bearing substrate such as cellulose, starches or leather. Cyanuric chloride (2, 4, 6 tri-chloro 1, 3, 5 triazine) is bonded to the substrate through the... | 07/12/1977 |
| 4016098 | Process for hardening microcapsules In a process for producing microcapsules which comprises microencapsulating hydrophobic oil droplets by complex coacervation using at least two hydrophilic colloids having opposite electric charges and being ionizable in water with at least one of the col... | 04/05/1977 |
| 4013820 | Universally useable tableting ingredients Known polymers of a defined class are converted into a universally useable tableting ingredient that provides controlled release of a drug from tablets made with this material. The new material is made in a rapidly stirred, nonaqueous solvent in a one-ste... | 03/22/1977 |
| 4010038 | Process for producing microcapsules In a process for producing microcapsules of complex hydrophilic colloid material enclosing fine particles of a hydrophobic substance, the improvement characterized in that: An acid-treated gelatin and at least one of carboxy-modified cellulose derivatives... | 03/01/1977 |
| 4002731 | Diagnostic process using sodium tyropanoate Divided doses or sustained release formulations of sodium tyropanoate upon oral administration provide adequate gallbladder visualization with substantially lower blood levels than are obtained with conventional single dose administration.... | 01/11/1977 |
| 3968277 | Process for coating solid particles with a digestive tract-soluble film A coating process and apparatus for manufacturing of solid particles with digestive tracts-soluble film by rolling water-containing solid particles at high speed, adding a coating liquid and drying them simultaneously.... | 07/06/1976 |
| 3965033 | Process for the production of oil-containing microcapsules In a process for producing oil-containing microcapsules by coacervation comprising A. introducing a fine powder or hydrophobic liquid into a high molecular weight electrolytic wall-forming colloid; B. coacervating the resulting dispersion or emulsion; C. cooli... | 06/22/1976 |
| 3960757 | Process for encapsulation of medicaments Encapsulated medicaments are prepared by dissolving a wall material for capsules in at least one organic solvent poorly miscible with water which has a boiling point of less than 100°C., a vapor pressure higher than that of water and a dielectric constan... | 06/01/1976 |
| 3959457 | Microparticulate material and method of making such material In a finely dispersed emulsion of a water immiscible solution of an organic polyfunctional Lewis base and an aqueous solution of a partially hydrophilic, partially lipophilic polyfunctional Lewis acid, a reaction occurs at the phase interface to produce a... | 05/25/1976 |
| 3956172 | Process for hardening microcapsules containing hydrophobic oil droplets In a process for hardening microcapsules produced by microencapsulating hydrophobic oil droplets using a complex coacervation process with gelatin as one of the hydrophilic colloids: including the steps of 1. emulsifying a water-immiscible oil in an aqueous so... | 05/11/1976 |
| 3951851 | Process of producing aspirin-containing capsules Process of producing aspirin-containing capsules which comprises (1) dispersing aspirin particles in a solution of a cellulose derivative in an organic solvent partially miscible with water; (2) adding the dispersion to an encapsulation medium comprising ... | 04/20/1976 |
| 3943063 | Preparation of microcapsules Microcapsules are made by (a.) dispersing or dissolving a core substance in a film-forming polymer solution, (b.) emulsifying in fine droplets the resulting dispersion or solution in a vehicle which is poorly miscible with the solvent of the polymer solut... | 03/09/1976 |
