| Patent Number |
Title Of Patent |
Date Issued |
| 7001940 |
Use of substituted biaromatic .beta.-diketone as stabilizing agent of halogenated polymers and r |
February 21, 2006 |
| The present invention relates to the use of a stabilising composition free of derivatives of 6-aminouracyl or 6-aminothiouracyl type, and comprising at least one .beta.-diketone bearing two aromatic nuclei, at least one of which bears at least one substituent on one of the two orthoposit |
| 6916481 |
Active-substance vector multiparticulate system, production and use thereof |
July 12, 2005 |
| The invention relates to an active substance vector multiparticulate system and to the production and use thereof. The object of the invention is an active-substance vector multiparticulate system comprising one or several active substances included in a hydrophilic organic matrix compri |
| 5766635 |
Process for preparing nanoparticles |
June 16, 1998 |
| Nanoparticles are prepared by dissolving a poly(ethylene oxide) and/or poly(propylene oxide) polylactic copolymer in an organic solvent followed by formation of nanoparticles by mixing the solution containing the polymer with an aqueous solution and by precipitation, without using an |
| 5683723 |
Nanoparticles based on a polyoxyethelene and polyactic acid block copolymer |
November 4, 1997 |
| The invention discloses nanoparticles offering an extended time before capture by the reticulo-endothelial system. Said particles are composed of an ethylene and/or propylene polyoxide polylactic copolymer optionally mixed with a polylactic polymer. |
| 5296219 |
Process for coating active principles using a pH-sensitive polymer |
March 22, 1994 |
| A process for coating at least one medicinal and/or foodstuff active principle useful for ruminants. At least one monomer is polymerized in an oil-in-water emulsion in the presence of a surfactant to synthesize a pH-sensitive-polymer composition, the composition being obtained in an |
| 5225238 |
Method for coating active principles with a pH-sensitive polymer |
July 6, 1993 |
| A new method of coating an active principle which comprises the step of coating an active principle with an aqueous emulsion or dispersion containing one or more pH-sensitive polymers. |
| 5130171 |
Process for encapsulating particles with a silicone |
July 14, 1992 |
| Particles of active substance are encapsulated by spraying them with a thermoplastic silicone copolymer in solution in an organic solvent or in an aqueous dispersion or emulsion and removing the solvent or water by drying with hot air. The spraying/drying process employed is, for example |
| 4985527 |
Preparation of thermally stable copolyimidoamides containing diorganopolysiloxane recurring unit |
January 15, 1991 |
| Thermally stable copolyimidoamides containing recurring diorganopolysiloxane structural units are improvedly prepared by directly interreacting, in a solvent medium:(i) a diisocyanate of the formula: ##STR1## (ii) a monoanhydride of a tricarboxylic acid of the formula: ##STR2## |
| 4939065 |
UV-curable organopolysiloxane compositions and negative photoresists comprised thereof |
July 3, 1990 |
| Substrates, e.g., silicon wafers, coated with a UV-curable organopolysiloxane composition including a crosslinking catalyst therefor (e.g., a platinum group metal compound) and an amount of a crosslinking inhibitor (e.g., an azodicarboxylate) which is effective at ambient temperature |
| 4822523 |
Electrically conductive, potentially adhesive composition |
April 18, 1989 |
| The present invention relates to electrically conductive potentially adhesive compositions and to films formed from these compositions which are capable of being employed in particular for the adhesive bonding of the surfaces of electronic devices.These compositions are characterized in |
| 4684741 |
Selective production of dimethyldichlorosilane |
August 4, 1987 |
| Dimethyldichlorosilane is selectively and efficiently prepared by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of copper or a copper compound, said copper catalyst comprising (i) from about 10 to 1000 ppm of tin, antimony, or |
| 4661613 |
Direct catalytic synthesis of dimethyldichlorosilane from methyl chloride and silicon |
April 28, 1987 |
| Dimethyldichlorosilane is directly prepared from methyl chloride and silicon, in high productivity, selectivity and degree of silicon conversion, by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of a catalyst which includes |
| 4656301 |
Direct catalytic synthesis of dimethyldichlorosilane from methyl chloride and silicon |
April 7, 1987 |
| Dimethyldichlorosilane is directly prepared from methyl chloride and silicon, in high productivity, selectivity and degree of silicon conversion, by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of a catalyst which includes |
| 4645851 |
Selective production of dimethyldichlorosilane |
February 24, 1987 |
| Dimethyldichlorosilane is selectively and efficiently prepared by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of copper or a copper compound, said copper catalyst comprising (i) from about 10 to 1000 ppm of tin, antimony, or |
| 4518758 |
Organopolysiloxane/polyurethane elastomeric block copolymers |
May 21, 1985 |
| Novel organopolysiloxane/polyurethane block copolymers which are thermoplastic elastomers and which possess good thermomechanical properties, are comprised of the following recurring units (A) and (B): ##STR1## wherein Z is a divalent radical which comprises a polysiloxane block and |
| 4263401 |
Thermoplastic, elastomeric polystyrene/diorganopolysiloxane block copolymers |
April 21, 1981 |
| Thermoplastic, elastomeric polystyrene/diorganopolysiloxane block copolymers having the structural formula: ##STR1## wherein each R, which may be the same or different, is selected from the group consisting of methyl, ethyl, n-propyl, phenyl and 3,3,3-trifluoropropyl; each R', al |
