35 results about "Silicone polymer" patented technology

The invention relates to the use of a substrate for shielding X-ray radiation. The matrix for radiation protection against X-ray radiation comprises at least one silicone polymer and at least one filler.

A razor blade with a sharpened cutting edge with an outer bonding surface. A phosphonate polysiloxane composite layer deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The phosphonate polysiloxane composite layer is composed of one or more layers. The phosphonates are covalently bonded to the outer bonding surface. The siloxanes are covalently bonded to the phosphonates and in some applications are also covalently bonded to the outer bonding surface. The siloxanes are a reactive silicone polymer, bonded to the phosphonates or outer bonding surface creating branches, mild crosslinking or even heavily crosslinked layers. The phosphonate polysiloxane composite may be formed through the use of thermal, UV exposure, IR exposure, a combination of thermal, UV, and or IR, as well as e-beam, ion-beam, or other ionization source.

The application discloses a preparation method and application of a defoaming agent containing a polar group-containing modified organosilicon polymer shown in formula 3 or formula 4. The polarized modified organosilicon can effectively disperse and anchor the hydrophilic silicon dioxide particles, on the one hand, significantly improving the dispersibility and compatibility of the defoaming agent in the aqueous system; on the other hand, the silicon dioxide can be firmly anchored, and the dispersion stability of the silicon dioxide in the system is greatly enhanced. The prepared polarized organosilicon can effectively chelate the silicon dioxide and has excellent dispersion in water, and the defoaming agent has outstanding defoaming and bubble inhibiting performance, especially the stability in the aqueous system and the compatibility with the resin.

The application discloses a high-strength solid-state battery packaging nylon film, which comprises a nylon layer, an aluminum foil layer and a heat-sealing layer, the nylon layer is prepared by a two-way stretching process after polyamide 66 and metal chloride are solution-blended, the metal chloride is a compound of calcium chloride and lanthanum chloride; the surface of the nylon layer is subjected to fluorination modification treatment, the fluorination modification treatment is grafting trifluoropropyltrimethoxysilane on the surface of the nylon layer; the heat-sealing layer is a polypropylene film, which is prepared by a flow casting process after a polypropylene matrix and a composite additive are melt-blended, and the composite additive is composed of an antioxidant, a stabilizer and an organic silicon polymer anti-blocking agent; and the nylon film prepared by the application has high strength and good comprehensive performance.

The present application relates to a method for simultaneously achieving defect passivation and room temperature encapsulation of perovskite solar cells by organic silicon polymer structure regulation, first, a telechelic organic silicon polymer is synthesized, and the polymer is introduced into the perovskite light absorption layer by anti-solvent method to achieve defect passivation. In addition, the organic silicon polymer is prepared into a polymer gel by condensation reaction, and the room temperature rapid cross-linking and curing of the polymer gel realizes the encapsulation of the perovskite cell. In practical application, it is found that the efficiency of the perovskite device based on the organic silicon polymer modification before encapsulation can reach 23.8%, and the efficiency loss of the encapsulated perovskite device is ≤1%. At the same time, the encapsulated device runs for 1000 hours under the maximum power point tracking of 50-60 DEG C, and keeps 92%-95% of the initial efficiency. The strategy has great commercialization prospect, and is helpful to further promote the wide application of perovskite photovoltaic equipment.

This invention provides a method for preparing a fluorine-free modified organosilicon waterproofing agent, relating to the fields of fine chemicals and organosilicon waterproofing agents. The preparation method includes the following steps: adding γ-aminopropyltriethoxysilane and epoxy silicone oil in a mass ratio of (10~25):20 to a solvent to perform an epoxy ring-opening reaction, obtaining a branched-chain modified organosilicon precursor; adding 3-methacryloyloxypropyltrimethoxysilane, deionized water, and a catalyst in a mass ratio of (5~7):20 to the epoxy silicone oil, and performing a hydrolysis-condensation reaction to obtain the fluorine-free modified organosilicon waterproofing agent. The ring-opening modification yields a branched-chain modified organosilicon precursor, which is then grafted via a hydrolysis-condensation reaction. The introduction of amino groups enhances the reactivity and functional tunability of the organosilicon polymer. It also improves the interfacial compatibility of the organosilicon polymer and strengthens its bonding with cellulose paper-based materials.

Coatings for reducing or preventing fouling of surfaces are provided. In some embodiments, the coating comprises a silane compound, a siloxane compound, a phosphonate compound, a silicone polymer such as PDMS (polydimethylsiloxane), or a combination of silane-siloxane-phosphonate-PDMS in various molecular configurations in single monolayer and overlay assemblies. Also provided are related methods for forming the coating as well as coated substrates such as heat exchangers. Embodiments of the coatings are highly hydrophobic with high contact angles and the coated substrates may be used in a variety of industrial applications that require handling of oil-in-water emulsions, process water and produced water from various process operations, including Steam Assisted Gravity Drainage (SAGD) operations.

A razor blade has a sharp cutting edge having an outer bonding surface. A phosphonate polysiloxane composite layer is deposited on the outer bonding surface, forming an outermost layer of the sharp cutting edge. The phosphonate polysiloxane composite layer is comprised of one or more layers. The phosphonate is covalently bonded to the outer bonding surface. The siloxane is covalently bonded to the phosphonate, and in some applications, also covalently bonded to the outer bonding surface. The siloxane is a reactive silicone polymer, bonded to the phosphonate or outer bonding surface, creating a layer that is branched, lightly crosslinked, or even heavily crosslinked. The phosphonate polysiloxane composite can be formed by the use of heat, UV exposure, IR exposure, combinations of heat, UV, and / or IR, and electron beam, ion beam, or other ionizing sources.

The application discloses a kind of organic silicon polymer brush super-slippery liquid surface material and its preparation method and application, belong to functional material technical field.The glycidyl ether monomer PDMS-g-POSS-G and amine curing agent PDMS-g-D-NH2 are respectively prepared, and the glycidyl ether monomer and amine curing agent are cured on extensive substrate by addition reaction, and excellent adhesion is obtained, realizes the introduction of super-slippery liquid PDMS polymer brush coating layer;The medium of precursor slurry is non-toxic or low-toxic or safe substance, and PDMS polymer brush coating layer can be formed on the surface of substrate at room temperature, which is beneficial to large-scale operation;Due to the good chemical matching of PDMS-g-POSS-G and PDMS-g-D-NH2, the slurry is thermodynamically stable, the coating flow leveling property is good, the liquid-like activity of polymer brush is strong, the transparency of coating layer is high, and the super-slippery performance is excellent.

Systems and methods are provided for implementing sealing of a cane assembly using a rapid, heat curing sealing material for hollow-core fiber ("HCF") manufacturing. In examples, an addition-curing silicone elastomer-based sealing material is first prepared by causing a rolling machine to roll a container containing a silicone polymer at a first rotation speed for a first duration to homogenize the silicone polymer. A planetary mixer mixes the homogenized silicone polymer with a catalyst at a weight ratio of 9:1, for a second rotation speed for a second duration, and de-aerates the mixture. The sealing material is applied at an end of an HCF cane and cured at between 70 and 200 oC for less than two hours. An inert gas is pumped in at the end of the HCF cane while an opposite end of the cane is drawn through a heated chamber to form the HCF.

A razor blade with a sharpened cutting edge with an outer bonding surface. A phosphonate polysiloxane composite layer deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The phosphonate polysiloxane composite layer is composed of one or more layers. The phosphonates are covalently bonded to the outer bonding surface. The siloxanes are covalently bonded to the phosphonates and in some applications are also covalently bonded to the outer bonding surface. The siloxanes are a reactive silicone polymer, bonded to the phosphonates or outer bonding surface creating branches, mild crosslinking or even heavily crosslinked layers. The phosphonate polysiloxane composite may be formed through the use of thermal, UV exposure, IR exposure, a combination of thermal, UV, and or IR, as well as e-beam, ion-beam, or other ionization source.

The present invention relates to a transdermal therapeutic system for the administration of the active ingredient lumarizine comprising a backing layer and at least one active ingredient-containing layer, which comprises the active ingredient in free base or salt form embedded in a polymer matrix, wherein the polymer matrix comprises a polymer selected from the group consisting of (1) polyacrylates, preferably polyacrylates containing free hydroxyl groups, (2) mixtures of polyacrylates and silicone polymers, and (3) one or more silicone polymers. The transdermal therapeutic system can further comprise an adhesive layer, a film layer and a release liner.

The application discloses the technical field of organic silicon material, and relates to a high-temperature-resistant organic silicon polymer and a preparation method and application thereof. The high-temperature-resistant organic silicon polymer is formed by a ladder-shaped polysiloxane and a linear polysiloxane. The ladder-shaped polysiloxane is dehydrated and condensed and ring-closed with a double functional silanol group on one side end of the ladder-shaped polysiloxane and an alkenyl boronic acid, and is further chain-extended by a silicon hydrogen addition reaction with a linear polysiloxane with a terminal hydrogen group, so that a ladder-linear block structure organic silicon polymer bridged by a borate group is finally obtained. The block organic silicon polymer contains the ladder-shaped molecule which is heat-resistant in nature, and the borate bridging group can further strengthen the heat-resistant property of the material. The block organic silicon polymer disclosed by the application has a heat-resistant temperature (according to the weight loss of 1.0% when initial decomposition) of 435 DEG C. The preparation method of the high-temperature-resistant organic silicon polymer is simple in process, simple in equipment, and easy in raw material acquisition, and is suitable for large-scale industrial production. The prepared organic silicon material is a thermoplastic polymer, has good film-forming property, can be hot-pressed into a film, and has a wide application prospect as a high-temperature-resistant elastic film material.

This invention relates to a self-compacting concrete and its preparation method, belonging to the field of concrete technology. The raw materials for the self-compacting concrete provided by this invention include cement, fly ash, slag powder, sand, crushed stone, a high-performance water-reducing agent, an air-entraining agent, and water. The high-performance water-reducing agent is obtained by blending a polycarboxylate water-reducing agent, an organosilicon-modified hyperbranched star polymer, and a polyether-modified organosilicon polymer. The air-entraining agent is obtained by compounding sodium dodecylbenzene sulfonate and sodium fatty alcohol polyoxyethylene sulfonate. The self-compacting concrete prepared by this invention has a high water reduction rate, low slump loss, and high stability, resulting in a significant improvement in overall performance.

A resin composition [composition (C)] suitable for use in the preparation of molded articles subject to friction and wear, the composition comprising : - 65.0 to 98.0 wt% of an aromatic poly(amide-imide) [polymer (PAI)], based on the total weight of composition (C); - 0.1 to 5.0 wt% of a ultra-high molecular weight silicone polymer [polymer (UHMW SIL)]; based on the total weight of composition (C); - 0.0 to 30.0 wt% of a graphite, based on the total weight of composition (C); - 0.0 to 30.0 wt% of at least one filler selected from the group consisting of TiO2, ZrO2, SiO2, reinforcing fibers or mixtures thereof, based on the total weight of composition (C).

A razor blade with a sharpened cutting edge with an outer bonding surface. A phosphonate polysiloxane composite layer deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The phosphonate polysiloxane composite layer is composed of one or more layers. The phosphonates are covalently bonded to the outer bonding surface. The siloxanes are covalently bonded to the phosphonates and in some applications are also covalently bonded to the outer bonding surface. The siloxanes are a reactive silicone polymer, bonded to the phosphonates or outer bonding surface creating branches, mild crosslinking or even heavily crosslinked layers. The phosphonate polysiloxane composite may be formed through the use of thermal, UV exposure, IR exposure, a combination of thermal, UV, and or IR, as well as e-beam, ion-beam, or other ionization source.

The present invention relates to a thermal and / or acoustic insulation product for filling a building element comprising two facing walls forming a cavity, the product comprising blown glass wool forming flakes, the product comprising a hydrophobic additive, the hydrophobic additive being a branched and cross-linked organosilicon polymer compound, a median flake size being less than 20 mm.

A razor blade with a sharpened cutting edge with an outer bonding surface. A phosphonate polysiloxane composite layer deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The phosphonate polysiloxane composite layer is composed of one or more layers. The phosphonates are covalently bonded to the outer bonding surface. The siloxanes are covalently bonded to the phosphonates and in some applications are also covalently bonded to the outer bonding surface. The siloxanes are a reactive silicone polymer, bonded to the phosphonates or outer bonding surface creating branches, mild crosslinking or even heavily crosslinked layers. The phosphonate polysiloxane composite may be formed through the use of thermal, UV exposure, IR exposure, a combination of thermal, UV, and or IR, as well as e-beam, ion-beam, or other ionization source.

This invention relates to the field of cosmetic technology, particularly to the field of IPC A61K8, and further to an air-feeling makeup prep spray and its preparation method. By mass percentage, the raw materials include 20-60% of a mixed liquid containing alkyl silicone polymers, 0.05-1% of spherical powder, and the balance being alkanes with more than 12 carbon atoms. This invention creatively prepares a makeup prep spray that can replace conventional makeup primers and serums, improving makeup adherence and achieving a setting and lasting effect, preventing makeup from caking or a stiff, lifeless appearance.

Systems and methods are provided for implementing sealing of a cane assembly using a rapid, heat curing sealing material for hollow-core fiber (“HCF”) manufacturing. In examples, an addition-curing silicone elastomer-based sealing material is first prepared by causing a rolling machine to roll a container containing a silicone polymer at a first rotation speed for a first duration to homogenize the silicone polymer. A planetary mixer mixes the homogenized silicone polymer with a catalyst at a weight ratio of 9:1, for a second rotation speed for a second duration, and de-aerates the mixture. The sealing material is applied at an end of an HCF cane and cured at between 70 and 200° C. for less than two hours. An inert gas is pumped in at the end of the HCF cane while an opposite end of the cane is drawn through a heated chamber to form the HCF.

The application discloses a polyurethane reactive hot melt adhesive, which comprises the following components in parts by weight: isocyanate-terminated prepolymer 55-90 parts; tackifying resin 2-20 parts; isocyanate-modified silicone polymer 0.1-10 parts; catalyst 0.1-10 parts; and other additives 0-15 parts; wherein the isocyanate-terminated prepolymer A is prepared by reacting at least one aromatic, aliphatic, aromatic-aliphatic and / or cycloaliphatic diisocyanate or polymeric isocyanate (A-1) with a mixture containing at least one polyester polyol, one polyether polyol and one thermoplastic acrylic resin (A-2) under the action of a catalyst. The isocyanate-modified silicone polymer is introduced into the formula to increase the waterproofness of the polyurethane hot melt adhesive product and facilitate easy disassembly at high temperature during repair, the silicone chain can effectively improve the resilience of the adhesive tape, so that the adhesive tape can be torn off in the process of cleaning residual adhesive; and due to the temperature resistance of the silicone, the product can be effectively prevented from adhesion failure during high-temperature processing.

The present disclosure relates to resins for forming organosilicon polymeric materials and particularly porous organosilicon polymeric materials, to organosilicon polymeric materials and particularly porous organosilicon polymeric materials, and to methods of formation of organosilicon polymeric materials and particularly porous organosilicon polymeric materials.

A substrate (12) for delivering a biologically active substance, the substrate (12) comprising: a cross-linked silicone matrix formed by cross-linking a silicone polymer using at least one crosslinking agent comprising a tetraalkoxysilane, the cross-linked silicone matrix defining a plurality of domains, and a composition contained within the domains of the cross-linked silicone matrix, wherein the composition comprises: at least one monomeric glycol and at least one biologically active substance.

This invention provides a silicone potting composition comprising: (A) a silicone polymer having two or more alkenyl groups per molecule; (B) a methyltrimethoxysilane oligomer; and (C) an inorganic filler. This silicone potting composition can be used as a thermally conductive encapsulant / sealant, exhibiting good anti-settling properties, good flowability and low viscosity, as well as good thermal conductivity due to high filler loading.

This invention discloses a perfluorohexanone microcapsule composite filler, its preparation method, and its application. The raw materials for the perfluorohexanone microcapsule composite filler include the following components: 10-40 parts perfluorohexanone microcapsules, 50-80 parts modified elastomer matrix, 2-8 parts plasticizer, 1-5 parts flame retardant synergist, 0.5-3 parts coupling agent, and 0.1-1 parts defoamer. The modified elastomer matrix comprises a hybrid network structure formed by chemical crosslinking or grafting of an organosilicon polymer and an elastomer prepolymer, ensuring that the material maintains hydrophobicity under long-term storage and complex working conditions, and integrates intelligent fire extinguishing, efficient synergistic shock absorption, and durable waterproofing and dustproofing.

Compositions, devices, and methods are disclosed for the modification of polymer surfaces with coatings having a dispersion of silicone polymer and hydrophobic silica. The surface coatings provide the polymer surface with high hydrophobicity, as well as increased resistance to biofouling with proteinaceous material. The polymer surfaces can be particularly useful in microfluidic devices and methods that involve the contacting of the covalently modified polymer surfaces with emulsions of aqueous droplets containing biological macromolecules within an oil carrier phase.

The present invention provides: an exposure device stage plate which is for a semiconductor package substrate and a printed substrate, which has both easy peelability and UV resistance, and on which a coating film is formed; and a method for producing the same.　An exposure device stage plate according to the present invention comprises: an aluminum member that has a porous type anodic oxide coating which is formed on the surface of a base material composed of aluminum or aluminum alloy; and a coating film that is formed on the surface of the anodic oxide coating and that has a silicone layer containing a silicone polymer (excluding silicone oil) which does not substantially include a functional group having a fluorine atom. A method for producing an exposure device stage plate according to the present invention comprises: an anodizing step for subjecting the surface of a base material to an anodizing treatment for forming an anodic oxide coating to produce an aluminum member; and a coating film forming step for subjecting the surface of the anodic oxide coating to a coating film forming treatment for forming a silicone layer to form a coating film.

The present invention relates to: an amino silicone polymer composition comprising hydroxyl-terminated polysiloxane, amino silane, and alkyl alkoxy silane; a silicone emulsion comprising same, showing excellent conditioning effects, and having excellent environment-friendliness; and a method for manufacturing same.

The application discloses a perovskite ink suitable for meniscus coating, a preparation method and application thereof, the perovskite ink comprises a perovskite material, a polymer additive and a solvent; the polymer additive is selected from one or more of polymethyl methacrylate, polydimethylsiloxane, polyethylene naphthalate, polyethylene terephthalate, polyimide, polycarbonate, polyurethane, natural rubber or silicone polymer. The application adopts a polymer additive to regulate the shape of perovskite precursor micelles in a solution, and prepares perovskite precursor ink. The ink shows uniform film morphology and single crystal orientation after blade coating. The high-quality perovskite film prepared by using the perovskite ink improves the performance of a perovskite battery.