A mechanical assembly for securing a first sheet to a second sheet includes a first projection having a first sidewall and a first top wall. The first sidewall extends from the first top wall at a first acute angle. The first sidewall includes a first top end and a first bottom end. A first discontinuity is defined in the first sidewall between the first top end and the first bottom end. A first base wall extends from the first bottom end. The first base wall extends generally parallel to the first top wall.

A box-in-box structure includes thermal clay, a plate and a film. The thermal clay includes a polyarysulfone material. The thermal clay is in a form of a first box and the film which has at least one side is in a form of a second box. The second box is attached to the first box in the presence of the plate so that the first box accommodates the second box to form a box-in-box structure.

The present disclosure relates more to processes for making a filter element that includes a filter membrane having a strip of thermoplastic polymer material laminated thereto, for example, as a strip along an edge of the filter membrane. For example, one such process includes providing a sheet of filter membrane having a first surface and an opposed second surface; providing a strip of thermoplastic polymer material having a first surface and an opposed second surface; contacting the first surface of the strip of thermoplastic polymer material with the first surface of the filter membrane; and softening the strip of thermoplastic polymer material at at least its first surface by irradiation with laser radiation; such that the softened polymer material of the first surface of the strip of thermoplastic polymer material bonds to the first surface of the filter membrane upon hardening.

The present disclosure relates more to processes for making a filter element that includes a filter membrane having a strip of thermoplastic polymer material laminated thereto, for example, as a strip along an edge of the filter membrane. For example, one such process includes providing a sheet of filter membrane having a first surface and an opposed second surface; providing a strip of thermoplastic polymer material having a first surface and an opposed second surface; contacting the first surface of the strip of thermoplastic polymer material with the first surface of the filter membrane; and softening the strip of thermoplastic polymer material at at least its first surface by irradiation with laser radiation; such that the softened polymer material of the first surface of the strip of thermoplastic polymer material bonds to the first surface of the filter membrane upon hardening.

The present disclosure relates to method for manufacturing three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a combination of at least one poly(aryl ether ketone) polymer (PAEK) and at least one poly(aryl ether sulfone) (PAES). In particular, the present disclosure relates to part material incorporating PAEK and PAES, for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.

A method for assembling two parts, referred to as first and second parts, the first part being produced from composite material with fibrous reinforcement embedded in a thermosetting or thermoplastic matrix, the method comprising the steps of: obtaining the first part comprising, on all or part of an outer surface, a first amorphous thermoplastic film; positioning the first part and the second part such that the first amorphous thermoplastic film is placed opposite the second part; introducing a thermosetting resin between the first amorphous thermoplastic film and the second part; at least partially polymerising the thermosetting resin. When the two parts comprise an amorphous thermoplastic film, the parts are positioned such that the respective amorphous thermoplastic films are placed opposite each other, and the thermosetting resin is introduced between the amorphous thermoplastic films.

A method for assembling two parts, referred to as first and second parts, the first part being produced from composite material with fibrous reinforcement embedded in a thermosetting or thermoplastic matrix, the method comprising the steps of: obtaining the first part comprising, on all or part of an outer surface, a first amorphous thermoplastic film; positioning the first part and the second part such that the first amorphous thermoplastic film is placed opposite the second part; introducing a thermosetting resin between the first amorphous thermoplastic film and the second part; at least partially polymerising the thermosetting resin. When the two parts comprise an amorphous thermoplastic film, the parts are positioned such that the respective amorphous thermoplastic films are placed opposite each other, and the thermosetting resin is introduced between the amorphous thermoplastic films.

The invention relates to imparting surfaces with nanometer sized structures that provide bactericidal properties to the surface and devices. In one embodiment, the present invention provides a bactericidal surface with nanometer sized pillars created by imprinting a softened polymer surface with a mold. In another embodiment, the nanometer sized pillars are part of a medical device with antibacterial properties.

An earplug assembly includes a first earplug, a second earplug, and a cord including a first end, a second end, each earplug including a stem and a sound attenuating body. A method for preparing the earplug assembly includes attaching the first and second ends of the cord to the first and second earplugs, respectively, by contacting a hot tip to the proximal end of the stem of the earplug to form an attachment point, removing the hot tip, and contacting or inserting the end of the cord to the attachment point to thermally bond the end of the cord to the stem of the earplug.

An earplug assembly includes a first earplug, a second earplug, and a cord including a first end, a second end, each earplug including a stem and a sound attenuating body. A method for preparing the earplug assembly includes attaching the first and second ends of the cord to the first and second earplugs, respectively, by contacting a hot tip to the proximal end of the stem of the earplug to form an attachment point, removing the hot tip, and contacting or inserting the end of the cord to the attachment point to thermally bond the end of the cord to the stem of the earplug.