371results about "Chemical liquid solidification" patented technology

The present invention generally relates to systems and methods of forming particles and, in certain aspects, to systems and methods of forming particles that are substantially monodisperse. Microfluidic systems and techniques for forming such particles are provided, for instance, particles may be formed using gellation, solidification, and / or chemical reactions such as cross-linking, polymerization, and / or interfacial polymerization reactions. In one aspect, the present invention is directed to a plurality of particles having an average dimension of less than about 500 micrometers and a distribution of dimensions such that no more than about 5% of the particles have a dimension greater than about 10% of the average dimension, which can be made via microfluidic systems. In one set of embodiments, at least some of the particles may comprise a metal, and in certain embodiments, at least some of the particles may comprise a magnetizable material. In another set of embodiments, at least some of the particles may be porous. In some embodiments, the invention includes non-spherical particles. Non-spherical particles may be formed, for example, by urging a fluidic droplet into a channel having a smallest dimension that is smaller than the diameter of a perfect mathematical sphere having a volume of the droplet, and solidifying the droplet, and / or by exposing at least a portion of a plurality of particles to an agent able to remove at least a portion of the particles.

The present invention relates to a process for the manufacture of metal-containing materials or composite materials, the process comprising the steps of encapsulating at least one metal-based compound in a polymeric shell, thereby producing a polymer-encapsulated metal-based compound and / or coating a polymeric particle with at least one metal-based compound; forming a sol from suitable hydrolytic or non-hydrolytic sol / gel forming components; combining the polymer-encapsulated metal-based compound and / or the coated polymeric particle with the sol, thereby producing a combination thereof; and converting the combination into a solid metal-containing material. The present invention further relates to metal-containing materials produced in accordance with the above process.

A water-based coating composition suitable for preparing hydrophilic surfaces on various articles is provided which includes a supporting polymer having functional moieties capable of undergoing crosslinking reactions, said supporting polymer soluble in or emulsified in an aqueous based medium; and a hydrophilic polymer, said hydrophilic polymer associated with the supporting polymer. The composition is characterized in that, when crosslinked at the functional moieties, the supporting polymer forms a three-dimensional network which substantially minimizes disassociation of the hydrophilic polymer.

The invention is based on the discovery that compositions containing certain maleimide compounds and aromatic diene compounds are useful as thermosetting resins for the electronic packaging industry. The invention compositions described herein can be cured in a variety of ways, with or without a catalyst. In some embodiments, the well-known “ene” reaction can be used to cure the compositions described herein, and therefore no catalyst is required.

The invention provides a PTFE-containing aqueous dispersion composition which is excellent in mechanical stability and scarcely allows the formation of agglomerates due to fibrillation of the PTFE resin during transportation or processing thereof. This invention is a polytetrafluoroethylene-containing aqueous dispersion composition comprising a polytetrafluoroethylene resin (A), a hydrocarbon-derived nonionic compound (B) and a water-soluble high-molecular compound (C) having no oxygen atom in the main chain thereof.

In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.

In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applictions, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.

A sintering and molding method includes forming a fluid mold material by heating a sinter mold material, which includes inorganic particles, a binder material and a binder material which bond together the inorganic particles, to a temperature equal to or more than the melting points of the binder materials, forming a mold layer by spreading the fluid mold material, layering a mold layer, applying UV ink to a desired region on the mold layer, forming a mold cross sectional pattern by curing the UV ink which is applied to a desired region on the mold layer, finishing a mold object by removing a region, where the UV ink is not applied, in the mold layer, carrying out heat treatment on the mold object at a temperature which is less than the initial temperature of thermal decomposition of the binder material, and carrying out sintering treatment on the mold object.

Acrylate copolymer pressure-sensitive adhesive constructions are described which provide excellent retention of rivet properties. Tenting around rivets is minimized even after undergoing thermal aging while in contact with additive rich films like PVC. This is achieved by the inclusion of a synergistic amount of an N-vinyl lactam monomer and acid monomer with the bulk of the monomers being an alkyl acrylate save and / or methacrylate esters. A concomitant increase in cohesive strength is also achieved which affords good removal characteristics. The use of appropriate adhesive blends is further disclosed which allows retention of these features while also improving cold temperature properties.

Disclosed are multi-staged acrylic based core-shell polymers comprising a linear core polymer and at least one subsequently polymerized shell polymers is crosslinked. The core-shell polymers surprisingly provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions, particularly at low pH.

The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid includes the reaction product of at least one functionalized polymer having at least one anhydride group contacted with at least one polyamine, wherein the at least one polyamine includes at least one primary amine. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

The present invention teaches a method for enabling the formation of a high damping composition. The method includes mixing a centipede polymer, i.e., a poly(disubstituted ethylene-co-maleimide) polymer, and plasticizers or extenders within a non-vulcanized thermoplastic elastomer to form a relatively high damping gel composition.

The present invention relates to sizing compositions, glass fibers at least partially coated with sizing compositions, and glass fiber reinforced composite materials. In one embodiment, a sizing composition comprises at least one maleic anhydride copolymer, at least one coupling agent, and a reaction product of an alkoxylated amine and a polycarboxylic acid, which is further reacted with an epoxy compound.

An ink jet recording medium including an ink receiving layer disposed on at least one side of a support, wherein the ink receiving layer is formed by applying an ink receiving layer coating solution. The ink receiving layer coating solution includes a water-soluble resin and a fine silica dispersion that has been prepared by finely dispersing a preliminary silica dispersion. The preliminary silica dispersion includes fumed silica, a cationic polymer having an I / O value of 2.4 or less, and alcohol.

The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler with high aspect ratio can be used. In one aspect, the invention provides mixtures of MPO with magnesium silicate. In another aspect, the invention provides a mixture of MPO, filler, and polymerization catalyst as a one-part, ready-to-polymerize material with a long shelf life. The one-part material can be used, for example, in the manufacture of parts without modification of existing processing equipment.

A MOF production system and method of making are detailed for continuous and controlled synthesis of MOFs and MOF composites. The system can provide optimized yields of MOFs and MOF composites greater than or equal to 95%.

Sterilizable separator tubes and methods of utilization of same are presented. Methods include providing a separator tube containing a separator substance that can be polymerized to a desired hardness following sterilization using radical generating radiation. The separator substance is formulated to have a density between that of the average densities of separable fractions derived from a sample fluid such as blood, and to be flowable. Upon centrifugation of a separator tube containing a fluid sample, the separator substance forms a barrier between the fractions. The barrier subsequently hardens to form a solid barrier when triggered by a suitable energy source.

An inkjet-receptive article comprising a substrate having a coating thereon comprising a vinyl lactam polymer or copolymer and a polymer resin diluent coated from a solvent. A preferred vinyl lactam copolymer is polyvinylcaprolactam (PVCap)—vinyl acetate (VA). Also disclosed are solvent-based compositions for forming an inkjet-receptive coating on a substrate comprising: (i) a vinyl lactam polymer or copolymer; (ii) a solvent; (iii) optionally, a pigment; and (iv) polymer resin diluent.

A torque for controlling the advancement and rotation of a right heart catheter during a right heart catheterization procedure. The torque has a casing with a cavity for receiving a core, and a lumen for receiving the right heart catheter. A gripper is disposed within the core to tightly grip the right heart catheter. The core has a plurality of threads that engage teeth of a handle. The handle is attached to the casing at an axis and rotates about the axis during use. The core has an elongated spiraled recess which is engaged by a guide pin attached to the casing and extending within the cavity. When the handle is rotated, the teeth of the handle engage the threads to rotate the core, and the guide pin engages the elongated spiraled recess to move the core laterally, thereby advancing and rotating the right heart catheter.

A composition for colloidal crystals including core-shell particles and a monomer having a particular structure. The core-shell particles constitute 25% to 65% by weight of the composition, and the monomer constitutes 35% to 75% by weight of the composition. The core has an average particle size from 50 to 900 nm. Each particle includes a core and a shell. The shell is formed of a linear polymer composed of at least one of styrene and a monomer having a particular structure. One end of the linear polymer is covalently bonded to the core. The refractive index of the core (n(core)) satisfies the following formulae: wherein R1 denotes a hydrogen atom or a methyl group, and y is 0 or 1, n(shell)−n(core)≧0.07, n(shell) denoting the refractive index of the shell, and n(B)−n(core)≧0.07, n(B) denoting the refractive index of the monomer (B1) after curing.

A method for producing resin particles, including ejecting a liquid containing at least a resin in the form of droplets from a droplet ejecting unit having a plurality of holes provided in a part of a flow channel for feeding the liquid containing at least a resin, and drying and solidifying the ejected droplets so as to obtain the resin particles, while the ejected droplets are transported by a primary transport air flow flowing in the direction in which the droplets are ejected, wherein the ejected droplets are further transported by a secondary transport air flow which transports the ejected droplets in a different direction from a direction in which the primary transport air flow flows, and wherein a smaller angle of angles formed between a velocity vector of the primary transport air flow and a velocity vector of the secondary transport air flow is less than 120 degrees.

This invention is directed to a composition capable of imparting surface effects to a liquid by contacting the liquid with a partially fluorinated phosphate with an ammonium cation (NH2R1R2)+ wherein R1 and R2 are independently linear or branched organic groups containing at least one carboxylate moiety and one amino moiety, and optionally be substituted, interrupted, or both with oxygen, sulfur, or nitrogen-containing moieties, or with cyclic alkyl or aryl moieties containing up to 10 carbon atoms.

Pneumatic rubber tire with a component comprised of a silica reinforced rubber composition comprised of a combination of functionalized polybutadiene rubber and functionalized styrene / butadiene elastomer.

The invention concerns new lubricants comprising a combination of a polyethylene oxide and an oligomer amide and an improved metallurgical powder composition comprising a major amount of an iron-based powder and a minor amount of this new lubricant. Furthermore, the invention concerns a method requiring low ejection force and low ejection energy for producing green products having high green strength. The method comprises the steps of mixing an iron-based powder and optional additives with the new lubricant and compacting the obtained powder composition.

[Problem] Provided are a nonadhesive polyurethane composition, which does not adhere to a molding apparatus and the like, is superior in melt-moldability and adhesion to silicone, and useful as a molded object, a composite molded object or an ink binder, and a molded object, a composite molded object, an ink binder and an ink composition, which are made therefrom.[Solving Means] A polyurethane composition containing polyurethane (A) containing, in a molecule, a structural unit (I) represented by the following formula (I);wherein R1 and R2 are each a hydrogen atom or a C1-6 alkyl group, in a proportion of 0.1-20 mass %, and metal compound (B) selected from an organic Zn compound, an organic Bi compound, an organic Ti compound and an organic Zr compound in a proportion of 0.1-2,000 ppm, a molded object comprised of the polyurethane composition, a composite molded object having a polyurethane composition layer and a silicone layer, an ink binder containing the polyurethane composition and an ink composition containing the polyurethane composition.

A pressure-sensitive adhesive composition includes: 100 parts by mass of a polymer (A) having a glass transition temperature lower than 0° C.; and 0.05 parts by mass to 20 parts by mass of a (meth)acrylic polymer (B) having a weight average molecular weight (MwB) of 1000≦MwB<30000 that contains, as monomer units, both a (meth)acrylic monomer having an alicyclic structure represented by the following general formula (1) and a monomer having a polyoxyalkylene skeleton:CH2═C(R1)COOR2  (1)[wherein R1 represents a hydrogen atom or a methyl group and R2 represents an alicyclic hydrocarbon group having an alicyclic structure.]

Described are non-aqueous dispersions of photosensitive polymeric microparticles, comprising: a) an organic continuous phase comprising an organic solvent; and b) photosensitive polymeric microparticles dispersed in the organic continuous phase. The microparticles comprise an at least partially polymerized component having integral surface and interior domains, wherein the surface domain comprises a polymeric material that is solubilized by the organic solvent, the interior domain comprises a polymeric material that is insoluble in the organic solvent, and the surface domain and / or interior domain is photosensitive. Also described are methods of producing such non-aqueous dispersions, curable film-forming compositions containing them, and photosensitive coated substrates.

The present invention provides: a novel water-absorbing agent, which exhibits an excellent absorption capacity under a load (AAP), gel layer liquid permeation rate under a load (FRUP), saline flow conductivity (SFC), and shape-maintaining property and ball burst strength (BBS) of a swollen water-absorbing agent aggregate, and excellent persistency of these effects for a long time. The water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and / or a salt thereof, with the water-absorbing agent being characterized by: (1) exhibiting a free swelling capacity of not less than 23 g / g (GV), a gel deformation of not more than 12.5 cm under a short-time load (0.5 hrPT), and a gel deformation deterioration of not more than 3.5 cm under a load with the passage of time (ΔPT); (2) exhibiting a free swelling capacity of not less than 23 g / g (GV), a ball burst strength of not less than 80 gf (BBS), and a deterioration of ball burst strength of not more than 40% (DBBS); or (3) exhibiting a free swelling capacity of not less than 23 g / g (GV), an absorption capacity of not less than 20 g / g under a load of 4.9 kPa (AAP), and a gel deformation of not more than 12.5 cm under a load (16 hrPT).

An aqueous slurry composition for use in industries such as the petroleum and pipeline industries includes a particulate, an aqueous liquid and a chemical compound that renders the particulate surface extremely hydrophobic. The slurry is produced by rendering the surface of the particulate extremely hydrophobic during or before making the slurry.

An adhesive composition for a pre-applied underfill sealant comprising: (a) a radical polymerizable monomer having one or more functional groups selected from the group consisting of vinyl group, maleimide group, acryloyl group, methacryloyl group and allyl group, (b) a polymer having a polar group, (c) a filler, and (d) a thermal radical initiator.