polypropylene
High-quality resins, reliable supply help processors compete in caps and closures market
Processors worldwide rely on ExxonMobil Chemical for reliable supply across a broad range of polypropylene resins for caps and closures for soft drink/water bottles, and packaging for cosmetics, drugs, food products and condiments.
Benefits
Resins from ExxonMobil Chemical, being suitable for injection and compression molding, provide processors with:
- Fast cycle times
- Low closure concavity
- Great appearance
- Low taste and odor
- Easy mold release
- Lot-to-lot consistency
For beverages, resins with low to medium melt flow rate (MFR) are generally preferred. ExxonMobil offers FDA-approved grades for caps and closures which provide the right stiffness/impact balance and efficient processability.
For nonbeverage caps and closures, choose from polypropylene homopolymers, impact copolymers and random copolymers offering a range of stiffness and impact requirements at different MFRs. The result is a balance of clarity, cleanliness, color and function as unique as the products protected.
Key grades for caps and closures
- Compression molding: ExxonMobil™ PP1572
- Injection-molded closures and general purpose injection-molding applications: ExxonMobil™ PP1074KNE1
Other cap and closure options
ExxonMobil Chemical also offers a range of polyethylene grades for additional cap and closure applications. Santoprene™ TPVs are excellent for high-temperature hot-fill and retort closure liners and cap seals.
