B29C65/485

Epoxy resin with enhanced viscosity stability and use thereof

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).

Controlled translation method of affixing a termination to a tensile member
09840044 · 2017-12-12 ·

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.

Packaging method and display device
09831470 · 2017-11-28 · ·

A packaging method and a display device are disclosed. The packaging method comprises: packaging a display element on a substrate having the display element disposed thereon to form a package covering the display element, wherein a first substance is disposed on at least a part of the substrate inside the package, the first substance comprising thermite; and initiating the first substance to obtain a second substance comprising a product of the thermite reaction.

Adhesive and its preparation and application

The present invention relates to an adhesive, a preparation method and application thereof, particularly the application for bonding glass fiber composites, and a bonded article obtained by using the adhesive. The adhesive comprises: a polyisocyanate having an isocyanate functionality of not less than 2; an epoxy-modified polyether polyol; a hydroxyl-containing acrylate; a redox catalyst; a silane coupling agent; optionally a polyol containing bisphenol A structure; and optionally a polymer polyol different from the epoxy-modified polyether polyol. The adhesive according to the present invention has the advantages of being insensitive to moisture, good bonding properties and a long pot life.

System and method for joint integrity detection
09795776 · 2017-10-24 · ·

An inspectable joint in a medical device is disclosed that includes at least one medical-grade tube having an end, a medical-grade fitting having at least one joining surface configured to accept the end of the tube, and a joining material disposed between the tube and the joining surface. The joining material includes a first component configured to couple the tube to the fitting and a second component configured to provide observable evidence of the presence of the joining material between the tube and the joining surface.

Method for manufacturing multilayer member
11254114 · 2022-02-22 · ·

A method for manufacturing a multilayer member that provides excellent adhesiveness without using a primer. An embodiment of the present invention provides a method for manufacturing a multilayer member including a first member containing a crystalline thermoplastic resin, an adhesion layer, and a second member in this order, the method including a surface treatment step of performing dry treatment on a surface of the first member containing a crystalline thermoplastic resin, satisfying the following condition A, an adhesive application step of forming an adhesive layer in a surface subjected to the dry treatment of the first member by applying an adhesive to the surface subjected to the dry treatment of the first member without interposing a primer composition, and an adhering step of making the second member adhere onto the adhesive layer.

Method for assembling a box structure and structure obtained by such a method
09731487 · 2017-08-15 · ·

A method for assembling a skin and a flange of a stiffener. The periphery of the contact between the skin and the flange of the stiffener is sealed by applying a bead of adhesive on the flange of the stiffener in contact with the skin. A first and second orifices are made in the skin. The orifices open at the interface between the skin and the flange of the stiffener. The adhesive is injected through the first orifice at the interface between the skin and the flange of the stiffener while keeping the skin in contact with the stiffener until the interface between the skin and the stiffener is completely filled with the adhesive.

Composite reinforcement systems and methods of manufacturing the same

Systems and methods for reinforcing physical structures with composite reinforcement systems are disclosed herein. According to aspects of the present disclosure, a composite reinforcement system includes a carrier formed of a plurality of fibers and a blend of at least two reagents impregnated within the carrier. The at least two reagents are chemically configured to react to form a moisture-curable prepolymer. One reagent of the at least two reagents is an isocyanate, and another reagent of the at least two reagents is an aromatic-group-containing polyol.

Method for low temperature bonding of elastomers

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.

APPARATUS AND METHOD FOR APPLYING MULTI-COMPONENT ADHESIVES USING JETTING VALVES
20220227067 · 2022-07-21 ·

An apparatus and method for dispensing a multi-component adhesive using a pair of non-contact jetting valves. The multi-component adhesive is a combination of two or more individual reactive adhesive components, which are not adhesive by nature on their own, but which can be mixed to chemically react and form an adhesive. The individual reactive adhesive components are held and dispensed separately by the apparatus, such that the individual reactive adhesive components do not mix before they are deposited onto the target substrate.