摘要:
An inflatable membrane apparatus (10) comprising (a) a fluid accumulator (11) having an upper and a lower face and a fluid entrance (12), said lower face being partly formed by an inflatable membrane (14), and (b) a trunconical part (15) projecting outwardly from the lower face of the accumulator whose greater base is closed by at least part of the inflatable membrane (14) and smaller base forms a circular opening, whereby, when pressurized fluid is introduced into the accumulator (11), deformation of the inflatable membrane (14) is guided by the trunconical part.
摘要:
A composition comprising a) one or more isocyanate functional components, one or more oligomers or prepolymers containing isocyanate functional groups and alkoxysilane groups, or prepolymers having a flexible backbone and silane moieties capable of silanol condensation: b) one or more catalysts for the reaction of isocyanate moieties with active hydrogen atom containing groups or for silanol condensation; c) one or more compounds comprising a dihydrocarbyl hydroxyl amine, an alicyclic hydroxyl amine, a nitrile oxide of a dihydrocarbyl hydroxyl amine or a nitrile oxide of an alicyclic hydroxyl amine in a sufficient amount to enhance the ultraviolet stability of the composition in a cured state; and d) a pigment that does not have reinforcing properties or the composition contains one of one or more oligomers or prepolymers containing isocyanate functional groups and alkoxysilane groups, or prepolymers having a flexible backbone and silane moieties capable of silanol condensation. The compositions are useful as adhesives and sealers.
摘要:
An integrated circuit chip attachment in a microstructure device is accomplished through the use of an adhesive-based material in which graphene flakes are incorporated. This results in superior thermal conductivity. The spatial orientation of the graphene flakes is controlled, for example by adhering polar molecules to the graphene flakes and exposing the flakes to an external force field, so that the graphene flakes have desired orientations under the integrated circuit chip, alongside of the integrated circuit chip and above the integrated circuit chip.
摘要:
A process for making UV curable pressure sensitive adhesive compositions by derivatizing an acrylic polymer with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate. The derivatizing agent typically has a ratio of hydroxy-functional acrylate monomer to diisocyanate greater than about 1:1. Also disclosed are UV curable pressure sensitive adhesives made with the derivatizing agent and methods for adhering substrates with pressure sensitive adhesive compositions.
摘要:
New adhesives and methods for preparing them are disclosed that include polylactic acid irradiated with gamma radiation, such as by a Co60 source. Irradiation times are used that improve the characteristics of the adhesive materials. Generally, the dose of radiation is from about 5 kGy to about 200 kGy of gamma irradiation. The adhesives generally have melting temperatures in the range of at least about 140 to about 148° C. such that they can be conveniently used in conventional glue guns and other glue equipment. The disclosed adhesives can provide bond strengths in the range of about 1,600 psi or more to about 2,500 psi or more. The disclosed adhesives can include a crosslinking agents. They can be used to join a wide range of substrates including wood, metal, plastic, ceramic, glass or combinations of substrates. They can be conveniently prepared by heating a polylactic acid (polylactic acid) preparation and mixing the molten polylactic acid with one or more crosslinkers when present. The molten mixture can then be and the polylactic acid can be irradiated with the desired dose of gamma radiation. Irradiation can occur before during or after mixing with the crosslinking agent and before or after shaping into the desired shape or even after use to join substrates. The adhesives can be used to join substrates by any known method once heated to a molten state.
摘要:
A functional element of metal having a flange of larger diameter from an attachment surface and a centering section arranged inside the attachment surface and extending away from the flange, characterized in that an adhesive is arranged around the cylindrical section and adjacent to the attachment surface.
摘要:
A composition comprising a) one or more isocyanate functional components, one or more oligomers or prepolymers containing isocyanate functional groups and alkoxysilane groups, or prepolymers having a flexible backbone and silane moieties capable of silanol condensation: b) one or more catalysts for the reaction of isocyanate moieties with active hydrogen atom containing groups or for silanol condensation; c) one or more compounds comprising a dihydrocarbyl hydroxyl amine, an alicyclic hydroxyl amine, a nitrile oxide of a dihydrocarbyl hydroxyl amine or a nitrile oxide of an alicyclic hydroxyl amine in a sufficient amount to enhance the ultraviolet stability of the composition in a cured state; and d) a pigment that does not have reinforcing properties or the composition contains one of one or more oligomers or prepolymers containing isocyanate functional groups and alkoxysilane groups, or prepolymers having a flexible backbone and silane moieties capable of silanol condensation. The compositions are useful as adhesives and sealers.
摘要:
A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate.
摘要:
The invention relates to an edge trim for pieces of furniture, comprising a meltable layer. In order to improve a generic edge trim such that the same is more versatile and can especially be mounted on a wider selection of surfaces, the molecular structure of the meltable layer contains both polar and non-polar parts.
摘要:
A method of forming an elastomeric sheet adhesive bond between mating surfaces of an electrode and a backing member to accommodate stresses generated during temperature cycling due to mismatch in coefficients of thermal expansion. The elastomeric sheet comprises a thermally conductive silicone adhesive able to withstand a high shear strain of ≧300% in a temperature range of room temperature to 300° C. such as heat curable high molecular weight dimethyl silicone with fillers. Installation can be manually, manually with installation tooling, or with automated machinery.