Plastic part with selective metallization and corresponding manufacturing process

Abstract

The present invention relates to a plastic part ( 1 ) with selective metallization comprising at least one first non-metallized portion ( 7 ) made from a first plastic material that cannot be metallized by electroplating and at least one second metallized portion ( 9 ) made from a second metallizable plastic material, the first plastic material being a mixture of polycarbonate and of a semiaromatic polyester and the second plastic material being a polyamide.

1 . A plastic part with selective metallization comprising:
 at least one first nonmetallized portion made from a first plastic material which cannot be metallized by electroplating; and   at least one second metallized portion made from a second metallizable plastic material,   wherein the first plastic material is a mixture of polycarbonate and a semiaromatic polyester and in that the second plastic material is a polyamide.   
     
     
         2 . The plastic part as claimed in  claim 1 , wherein the semiaromatic polyester is chosen from polyethylene terephthalate and polybutylene terephthalate. 
     
     
         3 . The plastic part as claimed in  claim 1 , wherein the first plastic material is reinforced by the addition of filler of glass fiber or glass bead type. 
     
     
         4 . The plastic part as claimed in  claim 1 , wherein the metallization metal used for the metallization of the plastic part is chromium. 
     
     
         5 . The plastic part as claimed in  claim 1 , wherein said plastic part is a shell of a motor vehicle identifier. 
     
     
         6 . A process for the manufacture of a plastic part with selective metallization, comprising the following stages:
 providing a plastic part comprising at least one first portion made from a mixture of polycarbonate and a semiaromatic polyester and at least one second portion made from a polyamide,   electroplating the plastic part in order to obtain selective metallization of the first portion.   
     
     
         7 . The manufacturing process as claimed in  claim 6 , wherein the semiaromatic polyester is chosen from polyethylene terephthalate and polybutylene terephthalate. 
     
     
         8 . The manufacturing process as claimed in  claim 6 , wherein the mixture of polycarbonate and a semiaromatic polyester is reinforced by the addition of filler of glass fiber or glass bead type. 
     
     
         9 . The manufacturing process as claimed in  claim 6 , wherein the metal deposited during the metallization is chromium.