Abstract:
The thermoset optical-purpose adhesive according to the present invention, having a superior resistance to heat and moisture and a high transparency is a mixed adhesive which is mainly composed of a primary agent and a curing agent, and is characterized by having a visible-ray transmittance of 90% or more after heat curing under conditions of a layer thickness that is enough for the adhesive to function as an adhesive. It is also characterized in that the primary agent is constituted of a silane modified epoxy resin whose active-radical moieties other than epoxy radicals have been inactivated in part or in entirety by the aid of a metallic soap and to at least one epoxy radical of which a silane coupling agent has been attached, and the curing agent is constituted of an amine type compound or an amide type compound.
Abstract:
The biomedical adhesives of the invention provide a reactive surface to adhere or crosslink to tissue and may be used, for example, as ready-to-use corneal onlay in ophthalmic surgery. The invention provides a method for bonding a bulk material to a corresponding nucleophilic or electrophilic surface including attaching a multifunctionally activated bulk material compound to the bulk material and contacting a functional group of the compound with the surface under conditions permitting covalent linkage between the bulk material and the functional group.
Abstract:
An encapsulation for a device is disclosed. Spacer particles are randomly located in the device region to prevent a cap mounted on the substrate from contacting the active components, thereby protecting them from damage.
Abstract:
Provided is an acrylic pressure sensitive adhesive composition excellent in pressure sensitive adhesive characteristics and removability and a pressure sensitive adhesive tape using the acrylic pressure sensitive adhesive composition. An acrylic pressure sensitive adhesive composition containing an acrylic polymer obtained by at least copolymerizing a (meth)acrylic acid alkyl ester with an alkyl group having 2 to 14 carbon atoms and a carboxyl group containing unsaturated monomer copolymerizable with the (meth)acrylic acid alkyl ester, and tackifier resins, wherein the tackifier resins are respective resins each containing a natural product as a raw material, include at least 4 kinds of the resins-different in a molecular structure from one another and a content of each of the tackifier resins is in the range of 5 parts by weight or more and 20 parts by weight or less relative to 100 parts by weight of the acrylic polymer.
Abstract:
An adhesive composition includes a polymer adhesive material and a thickener. The adhesive composition has a stringing length of 9 cm or less and a phase lag of 45 degrees or less or a sag distance of 5 mm or less. The adhesive can be formed by combining a vinyl acetate polymer, an alkali swellable thickener, an alkali material, and water.
Abstract:
A method for sealing microstructured cells, which are defined by at least a first substrate and a wall microstructure extending from the first substrate, includes a step of applying a plurality of adhesive microcapsules along at least one of a first side of a second substrate and an exposed end portion of the wall microstructure. The adhesive microcapsules containing an adhesive substance. Another step includes positioning the first side of the second substrate adjacent the end portion of the wall microstructure. Still another step includes rupturing at least a portion of the plurality of adhesive microcapsules dispensing the adhesive substance between the end portion of the wall microstructure and the first side of the second substrate. A microstructure is also provided.
Abstract:
A transfer method is comprised of a step for applying an adhesive for transfer to an upper surface of a pattern for transfer formed on a transfer sheet, the pattern formed by copying or printing, the adhesive spreading over the upper surface of the pattern by surface tension, the adhesive for transfer being one of a hot-melt adhesive or water-soluble or alcohol soluble adhesive including acrylic pressure sensitive adhesive, polyvinyl acetate adhesive, chloroprene rubber adhesive, polyurethane resin adhesive, polyvinyl chloride adhesive, silicon rubber adhesive and the like; and a step for transferring including an over-transferring, the transferring step being performed at least one time and including removing a liner sheet after the part with the adhesive applied to it is pushed or adhered fixedly with heating on a substrate so that everyone can easily perform the transfer work and can transfer to any substrate.
Abstract:
There is provided an electromagnetic wave shielding sheet which can effectively prevent an adhesive layer from being colored at the time of etching. The electromagnetic wave shielding sheet comprises a laminate of at least a transparent substrate film, an adhesive layer, and an electromagnetic wave shielding layer. The electromagnetic wave shielding layer is formed of a mesh metal foil with densely arranged openings and being transparent. The adhesive layer is substantially colorless and transparent.
Abstract:
The invention provides initiator systems capable of initiating polymerization. More specifically, the invention relates to initiator systems comprising a complexed initiator and a β-ketone compound decomplexer. The invention further relates to the use of these initiator systems for initiating polymerization, as well as kits, bonding compositions, and polymerized compositions made therewith, and coated substrates and bonded articles prepared therefrom.
Abstract:
A pressure sensitive adhesive composed of a mixture comprising a) a styrene block copolymer having a star-shaped structure and a molecular weight Mw of more than 300,000 g/mol, or having elastomer blocks which contain more than 30% by weight of 1,2-linked diene in their block structure, or both, and which is crosslinkable by exposure to UV-light or electron beams, and b) one or more block copolymers composed of vinylaromatic blocks and elastomer blocks, the block polyvinylaromatic content being greater than 20%, and c) one or more tackifier resins.
Abstract translation:一种由以下混合物组成的压敏粘合剂,该混合物包含:a)具有大于300,000g / mol的星形结构和分子量M w s的苯乙烯嵌段共聚物,或具有含有多于 30重量%的它们的嵌段结构中的1,2-连接二烯或两者,并且其可通过暴露于UV光或电子束而交联,和b)一种或多种由乙烯基芳族嵌段和弹性体嵌段组成的嵌段共聚物, 嵌段聚乙烯基芳族化合物含量大于20%,和c)一种或多种增粘树脂。