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Class 424/486 - Synthetic polymer


Subclass of Class 424 - Drug, bio-affecting and body treating compositions
Definition: Subject matter in which the matrix is of a solid synthetic
No. of patents: 1788
Last issue date: 05/08/2012


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NumberTitleIssue Date
4247406Intravascularly-administrable, magnetically-localizable biodegradable carrier
The intravascularly-administrable, magnetically localizable biodegradable carrier comprises microspheres formed from an amino acid polymer matrix with magnetic particles embedded therein. The microspheres can be used for intraarterial administration and c...
01/27/1981
4230809Pressure-resistant polyurethane-polyurea particles for the encapsulation of active ingredients and process for their manufacture
Pressure-resistant polyurethane-polyurea particles with textured internal mass prepared from a liquid phase immiscible with water and containing organic solvents, isocyanate prepolymers and optionally active substances or mixtures of active substances, th...
10/28/1980
4230687Encapsulation of active agents as microdispersions in homogeneous natural polymeric matrices
A method for effectively encasing an active agent such as a chemical compound, a seasoning, a flavoring, or a nutrient such as vitamins and minerals, including liquids, as a time-stable but releasable dispersion in a homogeneous polymeric encapsulating ma...
10/28/1980
4230686Drug excipient of silicone rubber
Nontoxic sustained release pharmaceutical compositions containing one or more nonionic, lipophilic drugs in a cured low temperature vulcanizable (LTV) silicone elastomer excipient are prepared substantially free of toxic vulcanizing agents or drug-reactiv...
10/28/1980
4226944Process for a polyurethane foam containing fragrance
Fragrance-emitting articles comprising a polyurethane foam containing a particulate filler and a fragrance material, and a method of making such articles, are disclosed. The method includes the essential steps of pre-mixing particulate filler and fragranc...
10/07/1980
4223006Coated particles
Pharmaceutically acceptable particles comprising an anhydrous hygroscopic salt of clavulanic acid dispersed in a polymeric binder of low water vapour permeability may be used in the preparation of pharmaceutical compositions of enhanced storage stability....
09/16/1980
4217898System with microporous reservoir having surface for diffusional delivery of agent
A system is disclosed for delivering an active agent to a fluid environment of use. The system comprises a microporous reservoir, an active agent housed in the reservoir, a surface that defines an exposed area of the reservoir for releasing agent from the...
08/19/1980
4198396Dissolution of gallstones
Macroreticular resins have shown biological activity for gallstone removal and lowering serum cholesterol by selective adsorption of cholesterol from the bile....
04/15/1980
4178361Sustained release pharmaceutical composition
A sustained release pharmaceutical composition which includes a pharmacological material; a biological binding agent for the pharmacological material; and a matrix of a water-insoluble but water-swellable hydrophilic polymer....
12/11/1979
4169069Silicon dioxide-containing compositions and process for their preparation and use
A process for the incorporation of active materials into silicon dioxide-containing carrier materials, comprises encapsulating the active material with liquid polyalkoxysiloxane, polyorganoalkoxysiloxane or a mixture thereof and subsequently effecting hyd...
09/25/1979
4164560Systems for the controlled release of macromolecules
Delivery systems manufactured in the form of polymeric compositions for the controlled delivery of macromolecules to environments of use are disclosed. The systems are characterized as two-phase compositions comprising a phase formed of an insoluble polym...
08/14/1979
4144317Device consisting of copolymer having acetoxy groups for delivering drugs
Drug-delivery device for releasing a drug at a continuous and controlled rate for a prolonged period of time is comprised of a shaped body of polymeric material containing a pharmaceutically acceptable drug and permeable to passage of the drug by diffusio...
03/13/1979
4093709Drug delivery devices manufactured from poly(orthoesters) and poly(orthocarbonates)
The invention concerns orthoester and orthocarbonate polymers having a repeating mer comprising a hydrocarbon radical and a symmetrical dioxycarbon unit of the general formula: ##STR1## WHEREIN R1 is a multivalent hydrocarbon radical, R
06/06/1978
4087545Hexahydro-dibenzo[b,d]pyran-9-ones as antiemetic drugs
Use of 1-hydroxy-3-alkyl-6,6a,7,8,10,10a-hexahydro-9H-dibenzo[b,d]pyran-9-ones as antiemetic drugs....
05/02/1978
4076798High molecular weight polyester resin, the method of making the same and the use thereof as a pharmaceutical composition
A normally solid biodegradable hydrolyzable polyester resin of diglycolic acid and an unhindered glycol having a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film forming properties and the process of...
02/28/1978
4052505Ocular therapeutic system manufactured from copolymer
Drug-delivery device for releasing a drug at a continuous and controlled rate for a prolonged period of time is comprised of a shaped body of polymeric material containing a pharmaceutically acceptable drug and permeable to passage of the drug by diffusio...
10/04/1977
4014987Device for delivery of useful agent
A device for the controlled continuous administration of an active agent to an environment of use is disclosed. The device comprises a body of erodible agent release rate controlling material containing an agent dispersed therethrough; the rate controllin...
03/29/1977
3992518Method for making a microsealed delivery device
The present invention is concerned with a pharmaceutical delivery device comprising a biologically acceptable silicone polymer matrix having microsealed compartments of 10-200 microns throughout, wherein the microsealed compartments contain a pharmaceutic...
11/16/1976
3977992Controlled release capsules
The disclosed substantially spherical capsules are particularly adapted for containing a liquid and have permeable or semi-permeable capsule walls. The capsule walls can comprise a first crystalline phase, an amorphous phase which ordinarily is intimately...
08/31/1976
3978203Sustained release of pharmaceuticals from polyester matrices
A novel class of polymer-based products for use in physiological environment, e.g. for use as sutures or implanted, medicine-bearing compositions for use in controlled-rate medication, or the like. The advantageous polymers on which these products are bas...
08/31/1976
3976071Methods of improving control of release rates and products useful in same
Improved processes for obtaining the sustained release of pharmaceuticals from polymer matrices comprising the utilization of such steps as will allow the formation of solid solutions between pharmaceutical and its matrix or, conversely and in a proper ca...
08/24/1976
3966902Polymer complex carriers for an active ingredient
Compositions comprising an effective amount of an active ingredient such as a medicinal agent, disinfectant, pesticide, insect repellant, or a cosmetic agent such as an antiperspirant, a bath oil, a fragrance, sunscreen, soap, hair dye, tanning agent, etc...
06/29/1976
3962420Dissolution of gallstones
Macroreticular resins have shown biological activity for gallstone removal and lowering serum cholesterol by selective adsorption of cholesterol from the bile....
06/08/1976
3948821Solid amino acid products for polypeptide synthesis and method of manufacture thereof
Macroreticular polystyrene resin having a surface area of at least 5 and preferably at least 50 square meters/gram and a majority of pores of at least 30 Angstroms diameter is utilized as a solid base support for polypeptide synthesis; linkage of the firs...
04/06/1976
3935326Process for coating tablets with aqueous resin dispersions
Coated tablets are prepared by applying to a core of active material, at least one layer of a coating composition made up of a film forming aqueous synthetic resin dispersion and from 2-50% by weight of a water or alkaline soluble material and thereafter ...
01/27/1976
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