412results about How to "Reduce moisture absorption performance" patented technology

A printed circuit board has a liquid crystalline polymer layer that is bonded to an electrically conductive layer that includes traces that electrically connect components mounted on the printed circuit board. The liquid crystalline polymer material is thermally conductive and dielectric. When the components produce heat, the liquid crystalline polymer layer absorbs and dissipates the heat produced by the electrical components mounted on the printed circuit board. The thermal equilibrium of the printed circuit board is lower than the maximum operating temperature of the components.

Compounds and compositions comprising specific metal salts of bicyclo[2.2.1 ]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.

The present invention provides for low cost discrete inductor devices in an all organic platform. The inductor devices can utilize virtually any organic material that provides the desired properties, such as liquid crystalline polymer (LCP) or polyphenyl ether (PPE), in a multilayer structure, wherein the organic materials have low moisture uptake and good temperature stability. Each layer may be metalized and selectively interconnected by vias formed in respective layers so as to form winding or coiled inductors. The inductor devices may advantageously include external shielding formed by metalizing the side walls and top surface of the inductor devices on in-built shielding achieved by the utilization of the hybrid co-planar waveguide topologies. The inductor devices can be configured for either ball grid array (BGA)/chip scale package (CSP) or surface mount device (SMD) mounting to circuit boards.

An object of the invention is to satisfy all of a high-density wiring package, soldering thermal resistance, an insulating property and high-frequency transmission characteristics. The invention is a multi-layer wiring substrate having a lamination of a plurality of dielectric layers which are each provided with a wiring conductor made of a metallic foil on at least one of upper and bottom surfaces of the dielectric layer, the wiring conductors between which the dielectric layer is disposed being electrically connected with each other via a through conductor formed in the dielectric layer; on this occasion, the dielectric layers each individually are composed of a liquid crystal polymer layer and cladding layers made of a polyphenyleneether-type organic substance and formed on upper and bottom surfaces of the liquid crystal polymer layer.

The invention discloses a high-strength environment-friendly flame-retarding fiberboard which comprises the following raw materials of plant fibers, flame retardants, adhesives and waterproofing agents, wherein the weight ratio of the plant fibers to the flame retardants to the adhesives to the waterproofing agents is 100:(3-30):(3-30):(0.1-4). The invention also discloses a manufacturing method of the high-strength environment-friendly flame-retarding fiberboard. Not only are the mechanical properties of the flame-retarding fiberboard obviously improved, but also the combustion property can conform to the regulations of GB8624 Class B or Class C, and the formaldehyde emission, the smoke volume produced and the smoke toxicity are also reduced. Thus, the high-strength environment-friendly flame-retarding fiberboard has good quality and low price, can be widely applied to the fields of building furnishings, flame-retarding furniture production, flame-retarding floor production, wooden fireproof door production, ship and vehicle furnishings and the like, and has good economical and social benefits.

Provided are: an alkoysilyl group-containing hydrogenated block copolymer produced by introducing an alkoxysilyl group into a hydrogenated block copolymer that is obtained by hydrogenating 90% or more of unsaturated bonds of a block copolymer that includes at least two polymer blocks [A] and at least one polymer block [B], the polymer block [A] including a repeating unit derived from an aromatic vinyl compound as a main component, the polymer block [B] including a repeating unit derived from a linear conjugated diene compound as a main component, and a ratio (wA:wB) of a weight fraction wA of the polymer block [A] in the block copolymer to a weight fraction wB of the polymer block [B] in the block copolymer being 20:80 to 60:40; a method for producing the same; a solar cell element encapsulating material; a sheet, a laminated sheet; a multilayer sheet; and a method for encapsulating a solar cell element. The alkoxysilyl group-containing hydrogenated block copolymer exhibits low hygroscopicity, a low water vapor permeability, transparency, weatherability, and flexibility, maintains excellent adhesion to glass even when exposed to a high-temperature/high-humidity environment for a long time, and can encapsulate a solar cell element without applying a special waterproof treatment.

The present invention discloses a high compact density nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and methods of its preparation. A preparation method of this battery cathode material is as follows: (A) preparing a nickel-cobalt-manganese multi-element intermediate with dopants by co-precipitation or chemical synthesis; (B) preparing a mixture by mixing said multi-element intermediate with a lithium salt; (C) pre-treating the said mixture, then adding into it polyvinyl alcohol and mixing uniformly; (D) pressing the resulting material into lumps, calcining the lumps at 800˜950° C., cooling after its removal from the furnace, crushing, passing through a 400 mesh sieve; (E) calcining the resulting power at 700˜800° C., cooling after its removal from the furnace, crushing and sieving to obtain a product. The lithium battery cathode material obtained using the above-described method has the formula LiNi_xCo_yMn_zM_(1-x-y-z)O₂. The cathode material has non-agglomerated single crystal particles. The material has a particle size ranging from 0.6˜30 μm, a compact density of 3.5˜3.7 g/cm³, and an initial discharge capacity of 150˜165 mAh/g, with excellent cycling and safety performance.

Disclosed is an optical film that has excellent adhesion and surface hardness between the film substrate and a hard coat layer or other functional layer, has improved brittleness, is transparent, and has low moisture absorption and high heat resistance. Additionally disclosed are an antireflective film, a polarizing plate, and a display device using the same. The optical film has at least a hard coat layer or a back coat layer as a functional layer containing a resin on a film substrate, and is characterized in that said film substrate contains a thermoplastic acrylic resin (A) and a cellulose ester resin (B), with the content ratio by mass of said thermoplastic acrylic resin (A) and said cellulose ester resin (B) being in a range thermoplastic acrylic resin (A):cellulose ester resin (B)=95:5 to 50:50.

The invention discloses a formula of coating particles of feed butyric acid derivatives, comprising a wall material and a core material, wherein the core material is feed butyric acid derivative powder with a weight percentage between 15% and 50%, and the wall material is feed solid ester or solid fatty acid with a weight percentage between 50% and 85%. According to the invention, the hydroscopic property of the butyric acid derivative is reduced, the product is easy to store, the peculiar smell produced thereby is greatly reduced, only a little peculiar smell is left, no chemical change is taken place, and the efficacies of ingredients including butyrate and tributyrin are not affected. The invention also discloses a production process of the coating particles of feed butyric acid derivatives.

Curable functionalized imide-linked polyimides compounds have been synthesized that have been found to possess very low dielectric constant and extremely low dissipation factor. These compounds also have a range of high to low modulus, extremely low moisture uptake and are very thermally stable. The combination of these materials in formulation along with functionalized polyethylene, polypropylene, polybutadiens have been found to be ideal for forming films and coatings for the microelectronic applications, multiplayer capacitors and interconnects, and high power cables and wire coatings. The addition of perfluorinated hydrocarbons, and POSS nanoparticles to the formulations have decreased the dielectric constant and dielectric dissipation factor further, and have also improved the flammability of the compositions.

A laminated glass may be obtained by integrally bonding glass sheets through an adhesive, the adhesive comprising a hydrogenated block copolymer obtained by introducing an alkoxysilyl group into a hydrogenated block copolymer that is obtained by hydrogenating unsaturated bonds of a block copolymer that comprises at least two polymer blocks and at least one polymer block, the polymer block comprising a repeating unit derived from an aromatic vinyl compound as a main component, the polymer block comprising a repeating unit derived from a linear conjugated diene compound as a main component, and a ratio (wA:wB) of a weight fraction wA of the polymer block in the block copolymer to a weight fraction wB of the polymer block in the block copolymer being 30:70 to 60:40. The laminated glass may employ a block copolymer hydrogenation product comprising an alkoxysilyl group and excellent light-fastness, heat resistance, moisture resistance and transparency.

The invention provides compounds of formula

wherein R¹, R³, R⁴, R⁵, R⁶, R⁷, L, X and Y are as defined in the specification; together with processes and intermediates for their preparation, pharmaceutical compositions containing them and their use in therapy. The compounds are inhibitors of human neutrophil elastase.

The present invention relates to a pharmaceutical dosage form containing the active substance BIBW 2992 as the dimaleate salt, providing an immediate release profile of the active substance, further, the invention relates to compacted intermediates comprising BIBW 2992 dimaleate salt (BIBW 2992 MA₂) in form of a powder prepared using a combined roller compaction and sieving step from BIBW 2992 MA₂, intermediate blends prepared from said compacted intermediate as well as solid oral formulations providing an immediate release profile of the active substance, made from said compacted intermediate or from said intermediate blends ready for use/ingestion, e.g. capsule and tablet formulations such as uncoated or film-coated tablets prepared by direct-compression, and methods for their production.

The invention relates to a flexible transparent conducting film for a polyimide substrate and a preparation method thereof. The preparation method comprises the following steps: taking 1, 2, 3, 4-cyclobutanetetracarboxylic dianhydride and a fluorine-containing benzylic ether aromatic diamine compound as monomers for synthesizing polyimide; obtaining the colorless and transparent polyimide film by low-temperature solution polycondensation and heat imidization treatment; carrying out surface treatment for washing and etching the polyimide film; and finally depositing a nano-indium tin oxide film layer on the surface of the polyimide film by virtue of a magnetron sputtering technology under a room temperature condition to obtain the flexible transparent conducting film for the polyimide substrate. The conducting film has higher operating temperature, light transmittance at 450nm is 88-95% and surface resistivity is about 3.0 is multiplied by 10<-4> omega.cm.

The invention relates to the technical field of pouring sealant, in particular to modified epoxide resin pouring sealant and a preparation method of the modified expoxide resin pouring sealant. The modified epoxide resin pouring sealant achieves improvement based on the prior art. The pouring sealant is composed of a component A and a curing agent. The weight ratio of the component A to the curing agent is 100 to 3-15, wherein the component A comprises, by weight, 1.0-8.0% of thinner, 25.0-39.0% of nano filler, 0.5-4.5% of flexibilizer, 0.08-0.45% of coupling agent, 0.08-0.45% of pigment, and the balance grapheme modified epoxide resin, and the total weight is equal to 100%. Compared with the prior art, due to addition of the grapheme modified epoxide resin and the nano filler, the pouring sealant is capable of improving high and low temperature resistant impact properties, capable of reducing hygroscopicity and a dilatation coefficient, capable of prolonging storage time, capable of strengthening dehiscence resisting capacity, and capable of having great value of industrial application.

The invention discloses a novel phosphonitrile compound (melamine modified polyamino cyclotriphosphazene) and a preparation method thereof, and belongs to the field of chemical engineering and high polymer material additives. The novel phosphonitrile compound is prepared by condensing melamine and hexachlorocyclotriphosphazene, re-ammoniating and finally heating for condensation polymerization. Compared with polyamino cyclotriphosphazene, the melamine modified polyamino cyclotriphosphazene is remarkably low in water solubility and hygroscopicity, is remarkably high in thermal stability, and is relatively suitable for being used as a flame retardant for plastic and the like as the initial thermal decomposition temperature (temperature for 2% of weight loss) is increased to be greater than 200 DEG C from about 70 DEG C. In addition, the phosphorus yield of the product is also remarkably increased.

Disclosed herein is a battery cell constructed in a structure in which an electrode assembly is mounted in a battery case made of a laminate sheet including a metal layer and a resin layer, and the battery case is thermally welded along the edge of a receiving part thereof to form a sealing part, wherein a weak part is formed at a portion of the sealing part (‘an electrode lea correspondence portion’) corresponding to one of electrode leads (a, b) connected to the electrode assembly, e.g., the electrode lead (a) having relatively low flexibility, the weak part being physically deformed, such that internal gas is discharged outside through the weak part, when predetermined pressure is applied to the weak part, and the weak part is not formed at an electrode lead correspondence portion of the other electrode lead (b).