Ingenia Polymers Inc. has developed two new purge compounds for a range of polyethylene processing.
Ingenia Polymers 1850 shutdown purge reduces the amount of oxidation of PE and protects equipment during shutdown and start-up. It is designed to cut cross-linking, gel formation and carbonization. The Houston company recommends its use at full strength for blown and cast film, injection molding and blow molding.
The firm's 1851 compound is a pellet containing purge agents. Ingenia touts it as a cost-effective way to clean up equipment and minimize gels and cross-linking. In film and molding equipment it removes degraded PE. It can be used for quick color changes and before manual cleanup. One advantage is that the blown film operator can hold the bubble during the purge cycle when the product is used, Ingenia claims.
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