BUENOS AIRES, ARGENTINA — Polyolefin maker OPP Petroquimica SA of Sao Paulo, Brazil, claims to be the first company worldwide to have developed a linear low density polyethylene for thermally shrinkable applications. The LL-0520 family has been offered to the company's clients in Brazil since late 1999, having entered the Spanish market as of January. It was launched in Argentina during the Argenplas show in Buenos Aires, once a few local clients tried out the material.
"The product combines the performance of butylene-based linear LDPE and the processability of conventional LDPE," OPP's technical service manager Luis Fernando Cassinelli, said in an interview at Argenplas. "It can be used pure, or blended with 20 percent of LDPE for heavy-duty bags."
The LL-0520 family has two grades: LL-0520 conventional and LL-0520/01, which contains a slipping agent. The modified grade is recommended for high-speed machines.
Both items are produced at the Montell technology-based facility OPP runs in Triunfo, in southern Brazil.
The main use of the new resins is shrink film packaging for PET soft drink bottles, Cassinelli said.