Container made from thermoplastic material for a product to be protected from light

Abstract

The invention relates to a container such as a bottle, flask, tank or similar for housing a product to be protected from light, said container being made from a thermoplastic material and produced by blowing or by draw-blowing of a preform, characterised in that said container has a layer of thermoplastic material loaded in a homogeneous manner with mica flakes at a level of 2 to 4% by weight with the addition of titanium oxide powder at a level of 2 to 4% by weight.

1 . A container, such a bottle, flask, can or the like, intended to contain a product that needs to be protected from the light, this container being made of a thermoplastic and manufactured by a blow-molding or stretch-blow-molding of a preform, wherein said container comprises a layer of thermoplastic filled homogenously with mica flakes to a level of 2 to 4% by weight with the addition of powdered titanium oxide to a level of 2 to 4% by weight.  
     
     
         2 . The container as claimed in  claim 1 , wherein said container consists of a monolayer of filled plastics material forming the aforesaid layer.  
     
     
         3 . The container as claimed in  claim 1 , wherein said container is externally coated with a sleeve which grips it snugly and is made of a filled thermoplastic constituting the aforesaid layer.  
     
     
         4 . The container as claimed in,  claim 1 , wherein the mica is present to a level of about 2 to 4% by weight and the titanium oxide to a level of about 2 to 4% by weight in respective proportions such that the combination represents about 4% by weight.  
     
     
         5 . The container as claimed in  claim 4 , wherein the mica is present at a level of about 2% by weight and the titanium oxide is present at a level of about 2% by weight.  
     
     
         6 . The container as claimed in  claim 1 , wherein the thermoplastic is chosen from polyethylene terephthalate PET, polyethylene naphthalate PEN and high density polyethylene HDPE.  
     
     
         7 . A milk bottle, which is formed as claimed in  claim 1.