PROCESSO PARA A MODIFICACAO DE SUPERFICIE DE PRODUTOS POLIOLEFINICOS

摘要

The adhesive properties of polyolefin products are improved by submitting said products to a surface modification process which includes the following steps: A) application of a layer of one or more photosensitive materials selected from: 1) chloroparaffin containing 5 to 80 wt% of chlorine and having an average molecular weight greater than 200; 2) vinyl chloride homopolymers and copolymers, containing 25 to 80 wt% of chlorine and K values between 40 and 60; 3) vinylidene chloride homopolymers and copolymers; B) surface exposure to ultraviolet radiations. The product treated in these manners are ready for painting or coating with various materials.