Patent ID: 7253229

Claim:
A process for forming an article or product, which comprises blending and kneading at least a master batch obtained by blending and kneading polymer bonded functional agent(s) and polymer(s) and forming said master batch in a sheet form or a pellet form so that said master batch contains the moieties of the functional agent(s) at a concentration of 5 to 20% by weight, as calculated in terms of functional agent(s) moieties, wherein said polymer bonded functional agent(s) is/are obtained by the esterification of an ethylene-vinyl alcohol copolymer or an ethylene-vinyl alcohol-vinyl acetate terpolymer containing hydroxy group(s) as the reactive group(s) with a functional agent containing acid halide group(s) as the reactive group(s), wherein said functional agent(s) comprises at least one functional agent selected from the group consisting of antioxidants, ultraviolet absorbers, light stabilizers, infrared absorbers and antistatic agents, and the polymer-bonded functional agent(s) contain(s) the moieties of the functional agent(s) at a concentration of 22 to 55% by weight, as calculated in terms of functional agent(s) moieties, with a synthetic resin(s), and blending, kneading and forming the resulting product, wherein said article or product contains the moieties of the functional agent(s) at concentration of 0.05 to 1.07% (by weight), as calculated in terms of BP moieties.