Method for packaging particulate material, paste or gel

Abstract

Method for packaging a particulate material, paste or gel, said method involving the steps of: (i) providing a rigid package, having a bottom, a top, and a vertical wall, said rigid package being opened at the top and containing an adhering layer on at least part of the inside bottom or inside vertical wall, (ii) filling a flexible package with particulate material, paste or gel, (iii) contacting the filled flexible package with the adhering layer, thereby adhering the flexible package to the rigid package, (iv) closing the rigid package.

What is claimed is: 
     
         1 . Method for packaging a particulate material, paste or gel, said method involving the steps of:
 providing a rigid package, having a bottom, a top, and a vertical wall, said rigid package being open at the top and comprising an adhering layer on at least part of the inside bottom or inside vertical wall,   filling a flexible package with the particulate material, paste or gel,   contacting the filled flexible package with the adhering layer, thereby adhering the flexible package to the rigid package,   closing the rigid package,   wherein the particulate material, paste or gel is a chemical compound requiring GHS and/or CLP labelling.   
     
     
         2 . Method according to  claim 1  wherein the adhering layer is on at least part of the inside bottom of the rigid package. 
     
     
         3 . Method according to  claim 1  wherein the adhering layer is a one-component adhesive. 
     
     
         4 . Method according to  claim 2  wherein the flexible package is a bag and the adhering layer constitutes the first component of a two-component adhesive; the second component of said adhesive being present on the outside bottom of the bag. 
     
     
         5 . Method according to  claim 2  wherein the flexible package is a bag, the rigid package is a box or drum, and the adhering layer constitutes one part of at least one hook-and-loop strip adhered to the inside bottom of the box or drum; the opposite part of said at least one strip being adhered to the outside bottom of the bag. 
     
     
         6 . Method according to  claim 1  wherein the rigid package is a box or drum comprising cardboard or fibre board. 
     
     
         7 . Method according to  claim 1  wherein the flexible package is a bag comprising plastic. 
     
     
         8 . Method according to  claim 1  wherein the chemical compound is an organic peroxide or organic peroxide formulation. 
     
     
         9 . Method according to  claim 1  wherein the adhesive is a pressure sensitive adhesive (PSA). 
     
     
         10 . Method according to  claim 9  wherein the adhesive is a hot melt pressure sensitive adhesive (HMPSA). 
     
     
         11 . Method according to  claim 2  wherein the adhering layer is a one-component adhesive. 
     
     
         12 . Method according to  claim 2  wherein the rigid package is a box or drum comprising cardboard or fibre board. 
     
     
         13 . Method according to  claim 12  wherein the flexible package is a bag comprising plastic. 
     
     
         14 . Method according to  claim 2  wherein the flexible package is a bag comprising plastic. 
     
     
         15 . Method according to  claim 2  wherein
 the flexible package is a bag comprising plastic, the rigid package is a box or drum comprising cardboard or fibre board, and the adhering layer constitutes one part of at least one hook-and-loop strip adhered to the inside bottom of the box or drum; the opposite part of said at least one strip being adhered to the outside bottom of the bag; 
 the chemical compound is an organic peroxide or organic peroxide formulation; and 
 the adhesive is a hot melt pressure sensitive adhesive (HMPSA).