Abstract:
The invention relates to a composition comprising at least one organic polymer that contains silane groups and at least one catalyst of formula (I). The composition is low in emissions and low-odour, has a good shelf-life, cures rapidly to form a mechanically high-quality, durable material with a very low propensity for migration-related defects such as exudation or dirt retention by the substrate. The composition is particularly suitable for use as an adhesive, sealant or coating.
Abstract:
This silicone adhesive sheet, which has ultraviolet ray shielding properties and is for sealing a solar cell, and which forms a silicone adhesive layer contacting a back surface panel in a solar cell module provided with a light-receiving surface panel, a back surface panel, a silicone adhesive layer contacting both surface panels, and a plurality of solar cells that are sealed by being interposed between both adhesive layers, is characterized by imparting a light transmission rate of no greater than 30% when measuring the light transmission rate at a wavelength of 380 nm to a cured product having a thickness of 2 mm. The silicone adhesive sheet is of a millable type able to capable of extrusion molding, calendering molding, and the like, and modularization using a vacuum laminator is possible of a laminate of a light-receiving surface panel, a silicone adhesive sheet, a solar cell, the silicone adhesive sheet of the present invention, and a back surface panel (back sheet).
Abstract:
A stretch releasable adhesive article includes first and second opposed major surfaces and a pull tab, and at least a portion of at least one of the first and second major surfaces is adhesive. The adhesive article has a cross-sectional area—as measured normal to the axis defined by a stretch release force applied to the pull tab during the stretch release process—that has a defined width to thickness ratio, and the adhesive article may have a visible light transmission of at least about 90%, and a haze of no greater than 5%.
Abstract:
A composition including: i) at least one moisture-reactive silane-functional polymer which is liquid at room temperature; and ii) at least one silane-functional polyester of formula (I):
Abstract:
The present invention relates to the use of a polyurethane adhesive in the manufacture of film/foil-coated furniture. The adhesive consists of two components, the first component comprising at least two different polyurethanes which comprise carboxyl groups, and the polyurethanes comprising units derived from polyester diols and units derived from polyether diols, the weight quantity ratio of the sum total of all units derived from polyester diols to the sum total of all units derived from polyether diols being in the range from 1:9 to 9:1, and the second component comprising at least one silane compound reactive toward carboxyl groups.
Abstract:
The present invention provides an improved multi-layer composite of two or more polymeric layers at least one of which is formed from a thermosetting composition. The composite includes at least a first polymeric layer formed on a substrate and a second polymeric layer over the first polymeric layer, wherein in the absence of a boron-containing compound, the first and second polymeric layers have poor interlayer adhesion. The improvement resides in the inclusion of at least one boron-containing compound in one or both of the first and second polymeric layers in an amount sufficient to improve the interlayer adhesion between the first and second polymeric layers. Also provided is an improved curable coating composition used to form a multi-layer composite coating of two or more cured coating layers, at least one of which is formed from the thermosetting composition. Related methods and coated substrates are also provided.
Abstract:
N-[.omega.-(methyl),.omega.-(silyl)]alkyl-N-organocarboxamides, oligomeric and polycondensed Si-containing compounds thereof, or mixtures of the corresponding monomeric, oligomeric and polycondensed Si-containing compounds. These materials are useful as, for example, adhesion promoters and for coating surfaces.
Abstract:
A moisture-curable silicone composition, suitable for use as a coating or pressure-sensitive adhesive, is disclosed, said composition comprising (i) a hydroxyl-functional organopolysiloxane resin comprising R.sub.3 SiO.sub.1/2 siloxane units and SiO.sub.4/2 siloxane units in a molar ratio of 0.5/1 to 1.2/1. respectively, wherein R is a hydrocarbon or halogenated hydrocarbon radical: (ii) a diorganopolysiloxane polymer having at least two silicon-bonded alkoxy groups and at least one carbon-bonded amine group in its molecule, said polymer having a viscosity at 25.degree. C. of 20 to 100,000 centipoise, the weight ratio of said resin to said polymer being in the range 20:80 to 80:20; (iii) optionally, a hydrolyzable silane in sufficient amount to provide stability to said composition; and (iv) optionally, sufficient catalyst to accelerate the cure of said composition.