Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build. Applicant further discloses multiple spray gun systems for applying such a two-part polymer mix to aircraft parts.

A method of additively manufacturing a composite part comprises depositing a segment of a continuous flexible line along a print path. The continuous flexible line comprises a non-resin component and further comprises a photopolymer-resin component that is uncured. The method further comprises delivering a predetermined or actively determined amount of curing energy at least to a portion of the segment of the continuous flexible line at a controlled rate while advancing the continuous flexible line toward the print path and after the segment of the continuous flexible line is deposited along the print path to at least partially cure at least the portion of the segment of the continuous flexible line.

A method of additively manufacturing a composite part comprises depositing a segment of a continuous flexible line along a print path. The continuous flexible line comprises a non-resin component and further comprises a photopolymer-resin component that is uncured. The method further comprises delivering a predetermined or actively determined amount of curing energy at least to a portion of the segment of the continuous flexible line at a controlled rate while advancing the continuous flexible line toward the print path and after the segment of the continuous flexible line is deposited along the print path to at least partially cure at least the portion of the segment of the continuous flexible line.

Medical adhesive applicators are disclosed which allow medical adhesives to have long storage life and be easily dispensed in a controlled manner. In one embodiment, the applicator has a frangible glass vial with the medical adhesive. The frangible glass vial is held in a plastic enclosure with a dispensing tip. Attached to the plastic enclosure is a squeeze tube capable of imparting air pressure into the enclosure. To dispense medical adhesive quickly and with precision, one simply breaks the frangible glass vial and pushes on the squeeze tube. In another embodiment, the applicator has a proximal chamber containing medical adhesive, a distal chamber for dispensing medical adhesive and one or more rupturable membranes between them. To achieve long shelf life, the applicator chambers and membrane(s) are formed from fluorinated plastic. To dispense medical adhesive, one ruptures the membrane(s) and pushes on the sides of the proximal chamber.

There is provided a second component, and a method of producing a second component, for a two-component sprayable paint. The sprayable paint can be sprayed in a sprayer apparatus. The first component is methyl-methacrylate. The second component is a mix of: a catalyst for the methyl-methacrylate; and an acetone-based paint. In a particular case, the catalyst is benzoyl-peroxide or dibenzoyl-peroxide. In another case, the acetone-based paint comprises an acrylic copolymer binder.

A transfer device for introducing and/or removing articles to a process device includes a basic frame and a conveying unit, which is supported by the basic frame and transfers or receives articles to or from the process device. The conveying unit is designed to be movably positionable in order for the transfer device to be reversibly advanced up to the process device. The conveying unit includes an output element of a magnetic coupling and is designed for reversibly coupling the transfer device to a corresponding drive element of the magnetic coupling, the drive element being provided on the process device. When the drive element and the output element are coupled to one another, the magnetic coupling effectuates a force transmission from a drive unit of the process device to the conveying unit.

Embodiments of the invention are related to a coating system and a method for coating a surface of a product. The system may include a coating unit, comprising; a droplet deposition assembly configured to deposit droplets of a coating material from a plurality of nozzles according to a predetermined deposition pattern, to form a coating on the surface. The system may further include a curing unit for curing at least one polymeric component included in the coating material and a control unit configured to receive the predetermined deposition pattern and control the coating unit to deposit the predetermined deposition pattern on the surface, such that the coating has a thickness deviation of less than 1 micron per 1 meter.

Embodiments of the invention are related to a coating system and a method for coating a surface of a product. The system may include a coating unit, comprising; a droplet deposition assembly configured to deposit droplets of a coating material from a plurality of nozzles according to a predetermined deposition pattern, to form a coating on the surface. The system may further include a curing unit for curing at least one polymeric component included in the coating material and a control unit configured to receive the predetermined deposition pattern and control the coating unit to deposit the predetermined deposition pattern on the surface, such that the coating has a thickness deviation of less than 1 micron per 1 meter.

Described herein is an improved process for anticorrosion pretreatment of a metallic surface including steel, galvanized steel, aluminum, an aluminum alloy, magnesium and/or a zinc-magnesium alloy, wherein the metallic surface is brought into contact with i) an acidic aqueous composition A which includes a1) at least one compound selected from the group consisting of titanium, zirconium and hafnium compounds, and with ii) an aqueous composition B which includes b1) at least one (meth)acrylate resin and b2) at least one phenol resin, where the metallic surface is brought into contact firstly with the composition A and then with the composition B and/or firstly with the composition B and then with the composition A and/or simultaneously with the composition A and the composition B.

Described herein is an improved process for anticorrosion pretreatment of a metallic surface including steel, galvanized steel, aluminum, an aluminum alloy, magnesium and/or a zinc-magnesium alloy, wherein the metallic surface is brought into contact with i) an acidic aqueous composition A which includes a1) at least one compound selected from the group consisting of titanium, zirconium and hafnium compounds, and with ii) an aqueous composition B which includes b1) at least one (meth)acrylate resin and b2) at least one phenol resin, where the metallic surface is brought into contact firstly with the composition A and then with the composition B and/or firstly with the composition B and then with the composition A and/or simultaneously with the composition A and the composition B.