Abstract: This invention provides a coating composition that contains an aromatic adhesion promoter. Containers and other articles comprising the coatings and methods of making such containers and other articles are also provided. The invention further provides compositions including the adhesion promoter, which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.

Abstract: The present disclosure provides a coating composition useful as a coating on food cans, and particularly as interior white or gold food can coatings. The coating composition includes a polyester polymer preferably having a number average molecular weight (Mn) of less than 10,000, a glass transition temperature (Tg) of more than 60° C., and a hydroxyl value greater than 10 mg KOH/g resin. The polyester preferably includes one or more cyclic groups selected from a mono-cyclic group having five ring members or less, a polycyclic group, or both, preferably in a backbone of the polyester polymer.

Abstract: This invention provides a coating composition that contains an aromatic adhesion promoter. Containers and other articles comprising the coatings and methods of making such containers and other articles are also provided. The invention further provides compositions including the adhesion promoter, which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.

Abstract: The present disclosure provides a coating composition useful as a coating on food cans, and particularly as interior white or gold food can coatings. The coating composition includes a polyester polymer preferably having a number average molecular weight (Mn) of less than 10,000, a glass transition temperature (Tg) of more than 60° C., and a hydroxyl value greater than 10 mg KOH/g resin. The polyester preferably includes one or more cyclic groups selected from a monocyclic group having five ring members or less, a polycyclic group, or both, preferably in a backbone of the polyester polymer.

Abstract: A method and device for cutting materials for manufacturing parts according to which an image of a cutting line is made recurrently downstream from a cutting head. The images produced are analyzed in real time to calculate amplitudes of deviations in the quality of the surface profiles of the cutting line as the part is being cut and comparing the calculated amplitudes to at least one predefined threshold value. The cutting is stopped in the event of the at least one threshold value being exceeded.

Abstract: This invention provides a coating composition that contains an aromatic adhesion promoter. Containers and other articles comprising the coatings and methods of making such containers and other articles are also provided. The invention further provides compositions including the adhesion promoter, which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.

Abstract: A method and device for cutting materials for manufacturing parts according to which an image of a cutting line is made recurrently downstream from a cutting head. The images produced are analyzed in real time to calculate amplitudes of deviations in the quality of the surface profiles of the cutting line as the part is being cut and comparing the calculated amplitudes to at least one predefined threshold value. The cutting is stopped in the event of the at least one threshold value being exceeded.

Abstract: The device according to the invention consists of associating a laser inspection head including a source emitting a laser beam swept along a defined axis and a handling robot seeing to the movement and spatial orientation of parts whose structure requires inspection. The inspection head and the handling robot are configured and arranged across from one another such that the inspection head occupying a stationary position, the handling robot can move the part to be inspected across from the inspection head, such that the sweep of the laser beam combined with the movement of the part in a direction perpendicular to the sweeping direction makes it possible to inspect the entire surface of the part. In one particular configuration, the handling robot makes it possible to vary the orientation of the part relative to the direction of the laser beam so as to have optimal lighting of the part.

Abstract: The device according to the invention consists of associating a laser inspection head including a source emitting a laser beam swept along a defined axis and a handling robot seeing to the movement and spatial orientation of parts whose structure requires inspection. The inspection head and the handling robot are configured and arranged across from one another such that the inspection head occupying a stationary position, the handling robot can move the part to be inspected across from the inspection head, such that the sweep of the laser beam combined with the movement of the part in a direction perpendicular to the sweeping direction makes it possible to inspect the entire surface of the part. In one particular configuration, the handling robot makes it possible to vary the orientation of the part relative to the direction of the laser beam so as to have optimal lighting of the part.

Abstract: This disclosure relates to a method for the nondestructive testing, using laser ultrasonics, of a composite part having a fibrous reinforcement in a resin that optically scatters the laser, includes: a) taking a measurement of the thickness of the resin of the part on the surface that is illuminated during the laser shot, which is capable of generating a thermoelastic effect in said resin and which is referred to as an ultrasonic laser shot; b) adjusting the power of the laser of said ultrasonic shot on the basis of the thickness measurement carried out in step a) so as to eliminate any risk of a flash on the reinforcements; and c) producing the ultrasonic laser shot at the power determined during step b). The device used for implementing the method comprises a combined photoacoustic imaging and low time-coherence interferometry (OCT) system.

Abstract: The disclosure relates to devices for the completely automated detection and characterization of a resin flash in a part consisting of a composite material, the device including an OCT measuring head including an OCT measuring module, a manipulator capable of moving the OCT head in space, a control for the manipulator, and a computer including a memory for acquiring the definition of the geometry of the area to be tested, for recording the measurements, for storing a criterion file, and for performing calculations pertaining to the comparison of the recording with the criterion file. The disclosure also relates to a method for detection and characterization of such a resin flash.

Abstract: This disclosure relates to a method for the nondestructive testing, using laser ultrasonics, of a composite part having a fibrous reinforcement in a resin that optically scatters the laser, includes: a) taking a measurement of the thickness of the resin of the part on the surface that is illuminated during the laser shot, which is capable of generating a thermoelastic effect in said resin and which is referred to as an ultrasonic laser shot; b) adjusting the power of the laser of said ultrasonic shot on the basis of the thickness measurement carried out in step a) so as to eliminate any risk of a flash on the reinforcements; and c) producing the ultrasonic laser shot at the power determined during step b). The device used for implementing the method comprises a combined photoacoustic imaging and low time-coherence interferometry (OCT) system.

Abstract: The disclosure relates to devices for the completely automated detection and characterization of a resin flash in a part consisting of a composite material, the device including an OCT measuring head including an OCT measuring module, a manipulator capable of moving the OCT head in space, a control for the manipulator, and a computer including a memory for acquiring the definition of the geometry of the area to be tested, for recording the measurements, for storing a criterion file, and for performing calculations pertaining to the comparison of the recording with the criterion file. The disclosure also relates to a method for detection and characterization of such a resin flash.

Abstract: Device and method for the nondestructive testing of a part made of a composite material reinforced with fibers, the device including: a) an energizing laser beam generator and elements for producing a photoelastic stress pattern of the surface of the part, in an energizing area, using the laser beam; b) elements for generating a first detection laser beam capable of illuminating the part in a target area; c) elements for generating a second reference detection laser beam, whose characteristics can be controlled independently of those of the detection laser beam; d) a two-wave photoreactive detector including a photorefractive crystal pumped by the reference laser beam; e) elements for collecting the beam reflected by the target area of the first detection laser and conveying the beam into the photorefractive detector; and f) elements for modifying the characteristics of the reference laser so as to adjust the bandwidth of the photorefractive detector.

Abstract: A device for implementing a method for pickling/stripping and for simultaneously non-destructively checking a part (100), the device including: a. an energizing laser head capable of generating pulsed energisation (212) on the surface of a part (100, 300) according to an energy spectrum adapted for the detachment of the particles (231) adhering to the surface; b. a detection laser head (220) connected to the energizing laser head and capable of measuring the response of the part to a pulse generated by the energizing head.

Abstract: A technique for acoustic detection of a disbond within a bonded structure involves thermal excitation of the surface of the bonded structure to induce a lifting and membrane vibration and is applicable to laminates and coated structures, as well as foam core structures or a honeycomb structures. The technique does not require access to both sides of the bonded structure. A large etendue interferometer is used to provide surface displacement measurement. The surface displacement measurement can be analyzed both by frequency or amplitude to determine existence of a disbond by membrane vibration, and further a thickness of the disbond can be determined using traditional pulse-echo time analysis. The technique may allow detection of stick bonds.

Abstract: A technique for acoustic detection of a disbond within a bonded structure involves thermal excitation of the surface of the bonded structure to induce a lifting and membrane vibration and is applicable to laminates and coated structures, as well as foam core structures or a honeycomb structures. The technique does not require access to both sides of the bonded structure. A large etendue interferometer is used to provide surface displacement measurement. The surface displacement measurement can be analyzed both by frequency or amplitude to determine existence of a disbond by membrane vibration, and further a thickness of the disbond can be determined using traditional pulse-echo time analysis. The technique may allow detection of stick bonds.