摘要:
In the construction of a multilayer film in which an ethylene-based polymer layer is joined to one another layer by a polyurethane (PU) adhesive, the rate of cure and the degree of cure of the PU adhesive are accelerated by incorporating into the ethylene-based polymer layer a functional compound with active hydrogens, e.g., a polyol, and/or a cure catalyst, e.g., an amine, zinc or tin-based compound. The catalyst and reactive functionality may be present on the same molecule (e.g. alkoxylated amine or zinc ricinoleate). The catalyst and isocyanate reactive compound will migrate into the PU adhesive over time and accelerate the rate and promote the degree of PU adhesive cure, and the functional compound will promote the migration of the cure catalyst into the PU adhesive. In turn, this accelerated cure inhibits the migration of residual, monomeric amines from the PU adhesive into and through the ethylene-based polymer.
摘要:
The present invention provides a multilayered polymeric film with a luminous transmittance greater than 30% when measured using ASTM-D 1003-92, for covering an agricultural structure or greenhouse, wherein the film contains adjacent layers that have an average delamination strength of less than 250 g/15 mm when measured using ASTM D-1876. More particularly, the film is thus separated into two or more film layers which are inflated with gas to provide thermal insulation.
摘要:
A joint tape includes a film substrate, fibers disposed on a major surface of the film substrate, and a binder or adhesive disposed over the major surface of the film substrate. The binder or adhesive includes a latent cure urethane formulation including a surface deactivated isocyanate cross-linking agent and a polyol component.
摘要:
[00154] A robust, two component adhesive for laminating flexible packaging material comprising a mixture of Component A and Component B. Component A comprises an isocyanate-functionalized compound. Component B comprises a mixture of a high functionality polyol containing at least four hydroxy I groups per molecule with at least two primary OH groups on the molecule and two secondary OH groups on the molecule and a trifunctional polyol containing three OH groups on the molecule. Component B can contain a difunctional polyol containing two OH groups on the molecule. The adhesive is robust and retains desirable properties when used at varying A:B mix ratios better than conventional laminating adhesives used at the same mix ratios.
摘要:
A molded or extruded article, e.g., an electrical part or shielded cable, comprises at least one insulation layer and at least one semiconductive layer, the semiconductive layer thick and comprising in weight percent: A. 1 to 30 wt% of conductive filler; B. 10 to 90 wt% of a non-olefin elastomer; C. 10 to 90 wt% of an olefin elastomer; and D. Optionally, 0.5 to 2.5 wt% of peroxide. Carbon black and/or metal particulates or powder typically comprise the filler, silicone or urethane rubber the non-olefin elastomer, and EPR or EPDM the olefin elastomer.
摘要:
The present invention relates to a multiple-component material including a substrate and a film layer on the substrate. The film layer includes a color- changing composition to indicate a change in condition, such as a change in pH. The color-changing composition includes a water-insoluble, film-forming polymer, a pH adjuster and a water-insoluble particle. The water-insoluble particle has a charged colorant immobilized on it.
摘要:
Die vorliegende Erfindung betrifft ein Identifikationsdokument aufweisend Schicht A), B) und C), wobei A) ein Thermoplast ist, B) eine Schicht hergestellt aus einem lagerstabilen, latent-reaktiven Klebstoff ist, und C) ein Thermoplast ist.
摘要:
This invention relates to a radiation-curable ink-jet ink having a viscosity of 30 mPas or less at 25°C, the ink comprising: at least two monofunctional (meth)acrylate monomers which comprise a cyclic monofunctional (meth)acrylate monomer and 2- (2-ethoxyethoxy)ethyl acrylate; a monofunctional monomer selected from an N-vinyl amide, an N-acryloyl amine or a mixture thereof; a multifunctional (meth)acrylate monomer; a polymerisable (meth)acrylate oligomer; a radical photoinitiator; and a colouring agent. The ink is preferably used in reel-to-reel printing and in printing where the substrates are stacked.
摘要:
Die vorliegende Verbindung betrifft Haftvermittlerzusammensetzungen, welche mindestens ein Isocyanat-Gruppen aufweisendes Bindemittel enthalten. Dieses spezifische Bindemittel wird hergestellt aus einer Mischung eines Polyesterharzes A, mindestens einem monomeren Diphenylmethan-diisocyanat, sowie mindestens einem Polyisocyanat B, wobei der Anteil monomeres MDI ≤ 2 Gew.-% an der gesamten Zusammensetzung beträgt. Derartige Haftvermittlerzusammensetzungen eignen sich besonders für Automobillacke der neueren Generation und sind aufgrund ihres niedrigen Gehalts an monomerem Diphenylmethandiisocyanat (MDI) in ökologischer und in toxikologischer Hinsicht sehr wünschenswert.