A method of activating a surface of a plastics substrate formed from: (a) polyaryletherketone such as polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK); (b) a polymer containing a phenyl group directly attached to a carbonyl group, for example polybutadiene terephthalate (PBT) optionally wherein the carbonyl group is part of an amide group, such as polyarylamide (PARA); (c) polyphenylene sulfide (PPS); or (d) polyetherimide (PEI); for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cm.sup.2 to about 300 J/cm.sup.2. Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.

A head-up display (HUD) system is described that makes it less possible that coloring is visually recognized on a windshield even with sunglasses worn, wherein the head-up display system includes an image projector configured to project an image; and a resin film configured such that the image from the image projector is projected on the resin film, wherein the resin film is a reflective plane, and is disposed in such a manner that the incidence plane where the maximum of the absolute value of a* and the maximum of the absolute value of b* satisfy the following formulae (1) and (2) is at 90±10° to a horizontal plane.

[00001]$\begin{array}{cc}\text{Maximum of absolute value of a*}\le \text{30}& \text{­­­(1)}\end{array}$

[00002]$\begin{array}{cc}\text{Maximum of absolute value of b*}\le \text{30}& \text{­­­(2)}\end{array}$

A method for adhesively bonding two substrates by means of a moisture-curable adhesive composition, wherein at least one of the substrates includes at least 40 wt.-% of a mixture, said mixture consisting of: between 15 and 99 wt.-% of at least one thermoplastic polymer; between 1 and 85 wt.-% of at least one elastomer; and wherein the moisture-curable adhesive composition includes: at least one polymer containing silane groups; between 10 and 40 wt.-% of at least one polymeric plasticizer; between 0.1 and 5 wt.-% of at least one amino-functional alkoxysilane; between 0 and 5 wt.-% of at least one C1-C12-alkyl-functional alkoxysilane. The method yields adhesively bonded substrates without the requirements of using migrating plasticizers and pre-treating of the substrates.

A composite cooling film including a reflective nonporous inorganic-particle-filled organic polymeric layer, an ultra-violet-protective layer or layers, and an antisoiling layer.

Provided is a fluorine resin surface modification method wherein an object to be processed and a processing device and the like are not readily damaged, wherefrom the risk of harmfully impacting a human body is small, and which can be carried out with simple equipment. The fluorine resin surface modification method including the steps of: irradiating an organic compound containing an oxygen atom with ultraviolet light having at least an intensity in a wavelength range of 205 nm or less to generate a radical; and bringing the radical into contact with a surface of a fluorine resin to form a hydrophilized layer on the surface.

The present teachings contemplate a method comprising providing a first and second substrate, locating an initiator onto a surface of the first or second substrate, the initiator including a substance for initiating polymerization of a polymerizable adhesive, locating the polymerizable adhesive onto a surface of the first and second substrate, the adhesive including a monofunctional, difunctional, or multifunctional methylene malonate, or cyanoacrylate, and contacting first and second substrate.

The invention particularly relates to a method of applying a permanent coating to a plastic surface of a first part, comprising the following steps: applying to said plastic surface a layer of a polyamide-based hot-melt material, maintaining this layer of hot-melt material on said plastic surface for a period of time ranging from a few minutes to several hours, removing this layer of hot-melt material from this plastic surface; and applying a permanent coating to said surface, said permanent coating being based on polyurethane, an epoxy resin or polyesters, a polycarbonate and/or an acrylic resin; as well as the use of such a method in the automotive industry.

A metal sheet (Al alloy A6061) with a thickness of 0.2 to 1.0 mm with one component epoxy adhesive painted on a surface thereof having been subjected to chemical treatment is joined by adhesion with a plate material of CFRP prepared by laminating CFRP prepregs having carbon fiber aligned in uni-direction or having crossing carbon fiber. A metal plate (a high strength Al alloy material) is joined by adhesion with the metal sheet to be an integrated object via a layer of cured adhesive of epoxy resin adhesive having a thickness after adhesion of 0.3 mm or more. The integrated object can endure large change of temperature because of deformation of the layer of cured adhesive. A basic technique is provided such that a structure of CFRP joined by adhesion with a high strength metal material that can endure a severe several thousand cycle thermal shock test is prepared, enabling an aircraft, an automobile and a moving-type robot to be of a lighter weight.

A method for adhesively bonding two substrates by means of a moisture-curable adhesive composition, wherein at least one of the substrates includes at least 40 wt.-% of a mixture, said mixture consisting of: between 15 and 99 wt.-% of at least one thermoplastic polymer; between 1 and 85 wt.-% of at least one elastomer; and wherein the moisture-curable adhesive composition includes: at least one polymer containing silane groups; between 10 and 40 wt.-% of at least one polymeric plasticizer; between 0.1 and 5 wt.-% of at least one amino-functional alkoxysilane; between 0 and 5 wt.-% of at least one C1-C12-alkyl-functional alkoxysilane. The method yields adhesively bonded substrates without the requirements of using migrating plasticizers and pre-treating of the substrates.

A method of bonding a substrate comprising a three-dimensional printed article to another substrate, by activating the three-dimensional printed article is described, thereby facilitating bonding of the two substrates using redox curable adhesives, for example anaerobically curable adhesives.