摘要:
The present invention provides low polyphenols (such as bisphenol A) tougheners for epoxy adhesives. The tougheners, and adhesives comprising the tougheners exhibit enhanced viscosity stability, e.g., compared to tougheners prepared from higher amounts of bisphenol A (and epoxy adhesives comprising them).
摘要:
An adhesive composition having two distinct reaction mechanisms, a first being the reaction between a tri-functional isocyanate and an active hydrogen compound and a second begin the free radical initiation of an acrylic monomer. This adhesive develops tack strength through the first reaction allowing two substrates to remain in position relative to one another while the free radical cure of the acrylic monomer takes place to fully bond the substrates together, for example when adhering a rubber liner to the inside of a metallic tank.
摘要:
The invention relates to a glued arrangement (1), preferably for a motor vehicle, comprising a first component (3), a second component (4) and at least one adhesive layer (2) for connecting the two components (3, 4), characterized in that the adhesive layer (2) comprises a central zone (5) and an edge zone (6) that surrounds the central zone (5), wherein, in the hardened state, the adhesive in the edge zone (6) has a higher elasticity than the adhesive in the central zone (5).
摘要:
A functional element (10) of metal having a flange of larger diameter (D1) forming an attachment surface (12) and having a centering section (16) arranged inside the attachment surface and extending away from the flange, is characterized in that an adhesive (30) which hardens under pressure is arranged around the centering section and adjacent to the attachment surface.
摘要:
A method for creating a termination by attaching some kind of fitting to the end of a tensile member such as a cable. The end fitting is provided with an internal cavity. The cavity has a proximal portion that is adjacent to the area where the tensile member exits the fitting and a distal portion on its opposite end. A length of the tensile member's filaments is placed within this expanding cavity and infused with liquid potting compound. The method exploits the characteristic of a liquid potting compound as it transitions to a solid. The potting compound in one portion of the cavity is typically transitioned to a solid at a more rapid rate than other portions. Once the potting compound in one portion of the cavity has transitioned sufficiently to hold the filaments at the desired level, tension is placed on the tensile member and a small linear displacement may be imposed on the tensile member. This linear displacement tends to pull the filaments residing in the potting compound into better alignment and improve load sharing.
摘要:
A two part heat and moisture resistant acrylic adhesive composition is provided and includes an initiator part comprising at least one polymer dissolved in a (meth)acrylate monomer and a free radical initiator and an activator part comprising at least one polymer dissolved in a (meth)acrylate monomer, a pyridinic reducing agent, an organometallic curing promoter and a thiourea accelerator.
摘要:
A method of bonding a vulcanized elastomer is provided comprising the steps of; providing an adhesive comprising a primary acrylate monomer, a reactive flexibilizing monomer, and further optionally comprising a toughener, an adhesion promoter and a free radical initiator, then depositing the adhesive on at least one surface of an elastomer or a second substrate, wherein the elastomer is a vulcanized elastomer, then bringing the elastomer substrate and second substrate together with the adhesive disposed therebetween, and allowing the adhesive to cure and bond the elastomer and second substrate together at a temperature of less than about 100° C. to produce a bonded structure.
摘要:
The invention relates to a roller for generating pressure when joining polymer-based materials, in particular conveyor belts. For this purpose, the roller has two arms (1, 2) that are joined to one another via a joining piece. Respective roller parts (4, 5) are provided at the free ends of the arms, coming into contact with the materials to be joined, and transmitting the pressure into the joining site. The pressure of the roller parts is generated via a pressure device (7) pressing on the arms. For a movement in relation to the materials to be joined, a roller part (5) is driven by a drive (6).