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1559 results about "Synthetic polymer" patented technology

Synthetic polymers are human-made polymers. From the utility point of view they can be classified into three main categories: thermoplastics, elastomers and synthetic fibers.They are found commonly in a variety of consumer products such as honey, glue, etc.

Absorbent material incorporating synthetic fibers and process for making the material

A process is provided for making a soft, high density, absorbent material with improved characteristics. A web is formed from material that includes a mixture of cellulosic fibers and synthetic polymer fibers. Then, the web is preferably compacted and embossed at an elevated temperature to further increase the web density and preferably to also create liquid-stable bonds between the synthetic polymer fibers and the cellulosic fibers in spaced-apart regions of the web.
Owner:EAM

Absorbent article comprising a synthetic polymer derived from a renewable resource and methods of producing said article

An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one intermediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.
Owner:THE PROCTER & GAMBLE COMPANY

Porous polymeric matrices made of natural polymers and synthetic polymers and optionally at least one cation and methods of making

A porous polymeric matrix containing at least one natural polymer and at least one synthetic polymer and optionally at least one cation. Furthermore, a method of making a porous polymeric matrix involving mixing at least one natural polymer and inorganic salts with a solution comprising at least one solvent and at least one synthetic polymer to form a slurry, casting the slurry in a mold and removing the solvent to form solid matrices, immersing the solid matrices in deionized water to allow natural polymer cross-linking and pore creation to occur simultaneously, and drying the matrices to create a porous polymeric matrix; wherein the matrix contains a cation. Also, a method of making a porous polymeric matrix, involving mixing at least one natural polymer in an aqueous solvent and mixing at least one synthetic polymer in an organic solvent, combining the mixtures and casting in a mold, and separately removing said aqueous solvent and said organic solvent to form a porous polymeric matrix; wherein the porous polymeric matrix does not contain a cation.
Owner:US SEC AGRI

Fragmented polymeric compositions and methods for their use

Molecular cross-linked gels comprise a variety of biologic and non-biologic polymers, such as proteins, polysaccharides, and synthetic polymers. Such molecular gels may be applied to target sites in a patient's body by extruding the gel through an orifice at the target site. Alternatively, the gels may be mechanically disrupted and used in implantable articles, such as breast implants. When used in vivo, the compositions are useful for inhibiting post-surgical spinal and other tissue adhesions, for filling tissue divots, tissue tracts, body cavities, surgical defects, and the like.
Owner:BAXTER INT INC +1

Hydrogels having enhanced elasticity and mechanical strength properties

InactiveUS6960617B2Great compression modulusEnhanced water absorbencePharmaceutical delivery mechanismAbsorbent padsPolyelectrolytePolymer science
Hydrogels having improved elasticity and mechanical strength properties are obtained by subjecting a hydrogel formulation containing a strengthening agent to chemical or physical crosslinking conditions subsequent to initial gel formation. Superporous hydrogels having improved elasticity and mechanical strength properties are similarly obtained whenever the hydrogel formulation is provided with a foaming agent. Interpenetrating networks of polymer chains comprised of primary polymer(s) and strengthening polymer(s) are thereby formed. The primary polymer affords capillary-based water sorption properties while the strengthening polymer imparts significantly enhanced mechanical strength and elasticity to the hydrogel or superporous hydrogel. Suitable strengthening agents can be natural or synthetic polymers, polyelectrolytes, or neutral, hydrophilic polymers.
Owner:PURDUE RES FOUND INC

Absorbent Article Comprising A Synthetic Polymer Derived From A Renewable Resource And Methods Of Producing Said Article

An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one intermediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.
Owner:HIRD BRYN +1

Absorbent Article Comprising A Synthetic Polymer Derived From A Renewable Resource And Methods Of Producing Said Article

An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one inteimediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.
Owner:HIRD BRYN +1

Stably tethered structures of defined compositions with multiple functions or binding specificities

The present invention concerns methods and compositions for stably tethered structures of defined compositions with multiple functionalities and / or binding specificities. Particular embodiments concern stably tethered structures comprising a homodimer of a first monomer, comprising a dimerization and docking domain attached to a first precursor, and a second monomer comprising an anchoring domain attached to a second precursor. The first and second precursors may be virtually any molecule or structure, such as antibodies, antibody fragments, antibody analogs or mimetics, aptamers, binding peptides, fragments of binding proteins, known ligands for proteins or other molecules, enzymes, detectable labels or tags, therapeutic agents, toxins, pharmaceuticals, cytokines, interleukins, interferons, radioisotopes, proteins, peptides, peptide mimetics, polynucleotides, RNAi, oligosaccharides, natural or synthetic polymeric substances, nanoparticles, quantum dots, organic or inorganic compounds, etc. The disclosed methods and compositions provide a simple, easy to purify way to obtain any binary compound attached to any monomeric compound, or any trinary compound.
Owner:IBC PHARMACEUTICALS INC

Molded starch-bound containers and other articles having natural and/or synthetic polymer coatings

Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a particle packed, highly inorganically filled, cellular matrix are disclosed. Suitable inorganically filled mixtures are prepared by mixing together a starch-based binder, a solvent, inorganic aggregates, and optimal admixtures, e.g., fibers, mold-releasing agents, rheology-modifying agents, plasticizers, coating materials, and dispersants, in the correct proportions to form an article which has the desired performance criteria. The inorganically filled mixtures have a predetermined viscosity and are heated between molds at an elevated temperature and pressure to produce form-stable articles having a desired shape and a selectively controlled cellular, structure matrix. The molded articles may be placed in a high humidity chamber to obtain the necessary flexibility for their intended use. The articles may be manufactured to have properties substantially similar to articles presently made from conventional materials like paper, paperboard, polystyrene, plastic, or other organic materials. They have especial utility in the mass-production of containers, particularly food and beverage containers.
Owner:EARTHSHELL SPE

Nanofilament Scaffold for Tissue Regeneration

A scaffold for tissue regeneration is provided. In a preferred embodiment, the scaffold is implantable in a patient in need of nerve or other tissue regeneration and includes a structure which has a plurality of uniaxially oriented nanofibers made of at least one synthetic polymer. Preferably, at least 75% of the nanofibers are oriented within 20 degrees of the uniaxial orientation. The scaffold beneficially provides directional cues for cell and tissue regeneration, presumably by mimicking the natural strategy using filamentous structures during development and regeneration.
Owner:GEORGIA TECH RES CORP

High density fibrous polymers suitable for implant

This invention includes malleable, biodegradable, fibrous compositions for application to a tissue site in order to promote or facilitate new tissue growth. One aspect of this invention is a fibrous component (e.g., collagen, chitosan, alginate, hyaluronic acid, poly-lactic acid, poly-capralactone, and polyurethane) that provides unique mechanical and physical properties. The invention may be created by providing a vessel containing a slurry, said slurry comprising a plurality of natural or synthetic polymer fibers and at least one suspension fluid, wherein the polymer fibers are substantially evenly dispersed and randomly oriented throughout the volume of the suspension fluid; applying a force, e.g., centrifugal, to said vessel containing said slurry, whereupon said force serves to cause said polymer fibers to migrate through the suspension fluid and amass at a furthest extent of the vessel, forming a polymer material, with said polymer material comprising polymer fibers of sufficient length and sufficiently viscous, interlaced, or interlocked to retard dissociation of said polymer fibers.
Owner:DSM IP ASSETS BV

Hybrid biologic/synthetic porous extracellular matrix scaffolds

Methods of making a hybrid biologic / synthetic scaffold for repairing damaged or diseased tissue are provided. The methods include the step of suspending pieces of an extracellular matrix material in a liquid to form a slurry, and coating a synthetic mat with the slurry, or mixing or layering the slurry with a synthetic polymer solution. The liquid is subsequently driven off so as to form a foam. Porous implantable scaffolds fabricated by such a method are also disclosed.
Owner:DEPUY SYNTHES PROD INC

pH-triggered microparticles

Microparticles that are designed to release their payload when exposed to acidic conditions are provided as a vehicle for drug delivery. Any therapeutic, diagnostic, or prophylatic agent may be encapsulated in a lipid-protein-sugar or polymeric matrix including a pH triggering agent to form pH triggerable microparticles. Preferably the diameter of the pH triggered microparticles ranges from 50 nm to 10 micrometers. The matrix of the particles may be prepared using any known lipid (e.g., DPPC), protein (e.g., albumin), or sugar (e.g., lactose). The matrix of the particles may also be prepared using any synthetic polymers such as polyesters. Methods of preparing and administering the particles are provided. Methods of immunization, transfection, and gene therapy are also provided by administering pH triggerable microparticles.
Owner:DANA FARBER CANCER INST INC +2

Microstructure synthesis by flow lithography and polymerization

In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse.
Owner:MASSACHUSETTS INST OF TECH

Electrospun blends of natural and synthetic polymer fibers as tissue engineering scaffolds

InactiveUS20060263417A1Facilitate cell penetrationFacilitate proliferationBiocidePeptide/protein ingredientsFiberPolymer science
Non-woven fibrous scaffolds made by electrospinning from the synthetic biodegradable polymer such as, for example, poly(lactic-co-glycolic acid) (PLGA) and natural proteins, such as, for example, gelatin (denatured collagen) and elastin and a method of making thereof.
Owner:DREXEL UNIV

Cellulose nanofilaments and method to produce same

Cellulose nanofilaments from cellulose fibers, a method and a device to produce them are disclosed. The nanofilaments are fine filaments with widths in the sub-micron range and lengths up to a couple of millimeters. These nanofilaments are made from natural fibers from wood and other plants. The surface of the nanofilaments can be modified to carry anionic, cationic, polar, hydrophobic or other functional groups. Addition of these nanofilaments to papermaking furnishes substantially improves the wet-web strength and dry sheet strength much better than existing natural and synthetic polymers. The cellulose nanofilaments produced by the present invention are excellent additives for reinforcement of paper and paperboard products and composite materials, and can be used to produce superabsorbent materials.
Owner:FPINNOVATIONS INC

Method for isolating and culturing unculturable microorganisms

The invention provides a method for isolating and culturing a previously unculturable microorganism, which comprises: (i) collecting a sample from an environmental source; (ii) counting / estimating the number of microorganisms in the sample; (iii) diluting the sample in an appropriate medium; (iv) adding a gelating agent such as to entrap one or more microorganisms within a sphere of the gelating agent; (v) coating the spheres containing the entrapped microorganism(s) with a natural or synthetic polymer to form a polymeric membrane; (vi) incubating the coated spheres in the original environment for an appropriate time; (vii) cutting the spheres and scanning for microorganisms colonies; and (viii) isolating the microorganisms, and repeating steps (iii) to (vii) until a pure clone of said previously unculturable microorganism is obtained.
Owner:BEN GURION UNIVERSITY OF THE NEGEV

Composite dressings for the treatment of wounds

Non-occlusive composite wound dressings that comprises a material polymer wound-healing layer comprised of isolated polymer fibers, and a synthetic polymer foam layer having at least one surface physically adhered to the natural layer by the physical interlocking of the polymer fibers with the surface. Also, a process for the preparation of a non-occlusive composite wound dressing comprising contacting a synthetic polymer foam porous surface with a solution and / or suspension of natural polymer fibers in a medium, and removing the medium from the fibers under conditions that result in the fibers penetrating into pores of the surface and that form a dried composite of the polymer foam adhered physically to a layer comprising natural polymer fiber.
Owner:SYNTACOLL

Chloroquine coupled antibodies and other proteins with methods for their synthesis

This invention discloses compositions of chloroquine-coupled active agents such as therapeutic antibodies or insulin, including methods for their preparation. The prior art has shown that chloroquines given as free drug in high enough concentration, enhances the release of various agents from cellular endosomes into the cytoplasm. The purpose of these compositions is to provide a controlled amount of chloroquine at the same site where the drug is delivered, thereby reducing the overall dosage needed. The compositions comprise a chloroquine substance coupled to a drug directly or through a variety of pharmaceutical carrier substances. The carrier substances include polysaccharides, synthetic polymers, proteins, micelles and other substances for carrying and releasing the chloroquine compositions in the body for therapeutic effect. The compositions can also include a biocleavable linkage for carrying and releasing the drug for therapeutic or other medical uses. The invention also discloses carrier compositions that are coupled to targeting molecules for targeting the delivery of chloroquine substances and antibody or insulin to their site of action.
Owner:KOSAK KENNETH M

Nano-silver antibacterial hydrogel and preparation method thereof

InactiveCN102698313AAvoid Residual ToxicityAct as a sterilizerSurgeryAbsorbent padsEscherichia coliPorosity
The invention discloses nano-silver antibacterial hydrogel and a preparation method thereof, wherein the antibacterial hydrogel does not contain a chemical cross-linking agent, a cross-linking sensitizing agent and a cross-linking initiator; the porosity is above 90%; the cross-linking degree is above 50%; by weight, the nano-silver antibacterial hydrogel comprises 3-20% of natural polymer or a derivative thereof, 0-20% of synthetic polymer and 0..005-0.2% of nano-silver; and the nano-silver antibacterial hydrogel is prepared by blending the natural polymer or the derivative thereof, the synthetic polymer, a compound containing silver ions and water and then adopting a radiation cross-linking method. The nano-silver antibacterial hydrogel disclosed by the utility model has good biocompatibility and uniform nano-silver distribution and slow-release capability and is capable of effectively inhibiting bacteria, such as escherichia coli.
Owner:北京同威典石技术有限公司

Electrospun cell matrices

The invention is directed to compositions and methods for preparing electrospun matrices comprising at least one natural biological material component and at least one synthetic polymer material. The natural component makes the matrices highly biocompatible while the molecular weight polymer component can impart additional strength mechanical strength to the scaffold and / or improve ease of manufacture by increasing viscosity and spinning characteristics of the solution during electrospining.
Owner:WAKE FOREST UNIV
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