Methods of bonding highly-fluorinated thermoplastics to elastomers are described. The methods include apply primers comprising at least one aromatic silane and at least one amino-silane to an uncured elastomer and irradiating the primer with actinic radiation before or after applying the highly-fluorinated thermoplastics. The elastomer may then be cured to provide articles having good adhesion between the highly-fluorinated thermoplastic and the cured elastomer.

A method and system for light induced transfer of components from a donor substrate to an acceptor substrate are described. The donor substrate includes a transparent carrier configured to carry the components facing the acceptor substrate, and a release stack. The release stack includes a light-absorbing layer, a melt layer, and an adhesive layer. The light-absorbing layer has a relatively high absorption coefficient for absorbing the light beam causing heat which is conducted to the melt layer. The light-absorbing layer has a relatively high melting temperature such that the light-absorbing layer can remain solid while the melt layer is melted. The adhesive layer adheres the components to the melt layer while the melt layer is solid and releases adhesion when the melt layer is melted.

A combined radiation and functional layer application system includes one or more radiation sources and a commonly located functional layer application unit configured to dispose a functional layer over the surface of a fixed target ahead of the radiation sources during relative motion between the target and the radiation sources/application unit. System and method embodiments include those in which the target is stationary or moving, and embodiments in which the functional layer is applied as a liquid or as a solid laminate. Embodiments relate to application of an oxygen-blocking layer of a printing plate prior to exposure to actinic radiation. Certain solid laminate embodiments include a two-roll system for positioning the laminate for cutting adjacent a trailing edge of the plate.

A method of bonding first and second substrates to each other the substrates having respective bonding surfaces to be bonded together, comprising: (a) applying to the bonding surface of at least the first substrate a redox-active metal catalyst primer to form a primed surface; (b) activating the primed bonding surface of the first substrate by exposing the primed bonding surface to actinic radiation; (c) applying, to the so activated bonding surface of the first substrate, and/or or to the bonding surface of the second substrate, a UV curable anaerobic adhesive; (d) mating the bonding surfaces together with the UV curable anaerobic adhesive therebetween; and (e) exposing the UV curable anaerobic adhesive between the mated surfaces to actinic UV radiation. The method is particularly suited for obtaining bonds with good tensile shear strength with electrical substrates coated with an insulating varnish.

Problem To make it possible to adhere a first substrate and a second substrate over the entire circumference of each lens portion by a simpler method.

Solution After a laminate is produced by adhering a second substrate 2 to a first substrate 1 which is a lens wafer having a plurality of lens portions 11 and formed of a curable resin, the laminate is cut between the lens portions 11, and a plurality of optical units are thus manufactured. Before the second substrate 2 is adhered to the first substrate 1, surface treatment of increasing surface free energy is performed on a surface 1a of the first substrate 1 opposing the second substrate 2. After the surface treatment, an adhesive is applied to the opposing surface 1a of the first substrate 1, and surrounds a lens portion 11 corresponding within a contour of each of the plurality of optical units. After the application of the adhesive, the second substrate 2 is superimposed on the first substrate 1, and the adhesive is cured.

A process for manufacturing a microfluidic device including: a) providing a first substrate having a first surface including a first flat part and a first concavity and a second substrate having a second surface including a second flat part and an optional second concavity, b) coating at least one of the first surface and the second surface with a coating composition including i) a monomer A including one moiety represented by CH2=CR1R2 wherein R1 represents H or CH3 and R2 represents COO or CONH, and a non-ionic hydrophilic moiety; ii) a monomer B including two or more moieties represented by CH2=CR1R2 wherein R1 represents H or CH3 and R2 represents COO or CONH, and a non-ionic hydrophilic moiety; iii) optionally a photoinitiator; iv) optionally a diluent; c) evaporating the diluent if present, and forming a liquid coating; d) contacting the substrates so as to obtain an assembly in which the first flat part and the second flat part contact each other to define a microfluidic structure between the first and the second surfaces, wherein the microfluidic structure includes the first concavity and the optional second concavity; and e) at least partially irradiating the assembly with light having a wavelength between 200 and 800 nm to crosslink the liquid coating to bond the first flat part and the second flat part and obtain a crosslinked coating on at least the first concavity.

A microfluidic device having two parts bonded together with a crosslinked composition and a channel which includes at least partly the crosslinked composition as a coating.

An object of the present disclosure is to provide a thermosetting composition having an excellent thermosetting property, a photocurable property allowing for temporary bonding, and a long pot life. A thermosetting composition contains: a resin (A) including at least one type of group selected from the group consisting of epoxy group, oxetane group, and vinyl ether group; a cationic thermal polymerization initiator (B); a cationic photopolymerization initiator (C); and a stabilizer (D). The stabilizer (D) includes at least one of a surfactant (D1), an antioxidant (D2), or a resin modifier (D3). When the stabilizer (D) includes the surfactant (D1) in a proportion of X % by mass, the antioxidant (D2) in a proportion of Y % by mass, and the resin modifier (D3) in a proportion of Z % by mass, with respect to a total mass of the stabilizer (D), the proportion of the stabilizer (D) to 100 parts by mass of the resin (A) is less than or equal to (5.0X+1.5Y+20.0Z)/100 parts by mass.

A method and system for light induced transfer of components from a donor substrate to an acceptor substrate are described. The donor substrate includes a transparent carrier configured to carry the components facing the acceptor substrate, and a release stack. The release stack includes a light-absorbing layer, a melt layer, and an adhesive layer. The light-absorbing layer has a relatively high absorption coefficient for absorbing the light beam causing heat which is conducted to the melt layer. The light-absorbing layer has a relatively high melting temperature such that the light-absorbing layer can remain solid while the melt layer is melted. The adhesive layer adheres the components to the melt layer while the melt layer is solid and releases adhesion when the melt layer is melted.

A superstrate can include a body, a first layer, and a second layer, wherein the first layer is disposed between the body and the second layer. Each of the first and second layers has a proximal surface and a distal surface opposite the proximal surface, wherein the body is closer to the proximal surface than to the distal surface. An Ra of the distal surface of the second layer is less than an Ra of the distal surface of the first layer. In a method of making the superstrate, the relatively high Ra of the distal surface of the first layer may be related to the process or equipment used in forming the first layer. The second layer can be formed using another superstrate, where the Ra of the distal surface of the second layer is substantially the same as the contact surface of the other superstrate.

A method for producing a layered article including a synthetic polymer film having antimicrobial and/or antiviral properties includes: preparing a layered article including a substrate and a synthetic polymer film formed on the substrate, wherein the synthetic polymer film has, on a surface thereof, a plurality of protrusions having area equivalent circle diameters in a range of more than 20 nm to less than 500 nm when the surface is viewed in a direction normal to the synthetic polymer film; and irradiating the plurality of protrusions in the layered article with light emitted from a xenon lamp such that the amount of irradiation with light in a wavelength range of 300 nm or more to 400 nm or less is 6 MJ/m.sup.2 or more.