A packaging machine comprising: a rest plane (2) for a pack (C) of products (P); at least one magazine (3), predisposed to contain one or more connecting elements (A), predisposed to be applied to at least one flank (S) of the pack (C); at least one applicator (4), movable between at least one pick up position, in which it is able to pick up a connecting element (A) from the magazine (3), and at least one application position, in which it is able to position a connecting element (A) in contact with a flank (S) of the pack (C).

A packaging machine comprising: a rest plane (2) for a pack (C) of products (P); at least one magazine (3), predisposed to contain one or more connecting elements (A), predisposed to be applied to at least one flank (S) of the pack (C); at least one applicator (4), movable between at least one pick up position, in which it is able to pick up a connecting element (A) from the magazine (3), and at least one application position, in which it is able to position a connecting element (A) in contact with a flank (S) of the pack (C).

Interleavant particles for location between adjacent stacked glass sheets that include an organic polymer core with an outer coating comprising rosin. The organic polymer core has a softening point greater than 60 C., a solubility in water of less than 2 g/L, a compressive strength of at least 3 MPa and a volumetric mass density less than 1.6 g/cm.sup.3. A composition, methods of producing the particles and stacking glass sheets, use of the particles to space the glass sheets and a stack of glass sheets. In one method, a solid organic polymer core and a solid outer coating material are combined by high shear mixing wherein the outer coating material has a lower melting point than the core material and the high shear mixing is effective to melt the outer coating material and to effect coating thereof onto the solid organic polymer core.

Interleavant particles for location between adjacent stacked glass sheets that include an organic polymer core with an outer coating comprising rosin. The organic polymer core has a softening point greater than 60 C., a solubility in water of less than 2 g/L, a compressive strength of at least 3 MPa and a volumetric mass density less than 1.6 g/cm.sup.3. A composition, methods of producing the particles and stacking glass sheets, use of the particles to space the glass sheets and a stack of glass sheets. In one method, a solid organic polymer core and a solid outer coating material are combined by high shear mixing wherein the outer coating material has a lower melting point than the core material and the high shear mixing is effective to melt the outer coating material and to effect coating thereof onto the solid organic polymer core.