Improve Antiblock With Tospearl™
Tospearl™ Plastic Additives Are Developed For Both Converters And Manufacturers
Momentive's Tospearl™ resins allow for higher quality and less downtime at the converter and faster extrusion while manufacturing films. No need to worry about adhesion on the finished roll or the inside of the bubble. Tospearl™ resins helps prevent film adhesion by decreasing the contact between film layers, lowering the coefficient of friction (COF) and thus, preventing them from sticking together.
The silicone helps improve film clarity while requiring lower usage levels than other antiblocks like silica, talc or mica. With Tospearl™, there is no need to worry about heat sealing issues like traditional migratory plastic additives.
Tospearl™ is available in a variety of particle sizes suitable for most film thicknesses. The diameter of the Tospearl™ resin bead should be approximately 40% of the skin layer thickness to provide the lowest possible COF which would assure adequate bead retention.
| Properties | Tospearl™ 120 FL | Tospearl™130 FL | Tospearl™145 FL | Tospearl™1100 FL |
|---|---|---|---|---|
| Appearance | White spherical beads | White spherical beads | White spherical beads | White spherical beads |
| Mean Particle Diameter1(µm) | 1.8 - 2.3 | 2.3 - 3.1 | 4.0 - 5.0 | 8.5 - 10.5 |
| Weight Loss @250°C & 0,5 hr, % | <1.0 | <1.0 | <1.0 | <1.0 |
| pH2 | 6.0 - 8.0 | 6.0 - 8.0 | 6.0 - 8.0 | 6.0 - 8.0 |
| Bulk Specific Gravity | 0.35 | 0.36 | 0.43 | 0.66 |
| Particle Specific Gravity | 1.32 | 1.32 | 1.32 | 1.32 |
| Refractive Index | 1.42 | 1.42 | 1.42 | 1.42 |
1Measured on a COULTER COUNTER MULTISIZER II (Electrical Sensing Zone method)
2A 2% dispersion in methanol/water (1/1)
*Tospearl is a trademark of Momentive Performance Materials Inc.
2A 2% dispersion in methanol/water (1/1)
*Tospearl is a trademark of Momentive Performance Materials Inc.
ABOUT MOMENTIVE
Momentive Performance Materials is a global leader in silicones and advanced materials, with a 75-year heritage of being first to market with performance applications for major industries that support and improve everyday life. The company delivers science-based solutions by linking custom technology platforms to opportunities for customers. Momentive Performance Materials Inc. is an indirect wholly-owned subsidiary of MPM Holdings Inc. Additional information about Momentive and it's products is available at www.momentive.com.
ABOUT CHEMPOINT
ChemPoint, a Momentive authorized distributor is the leader in the marketing, sales, and distribution of specialty and fine chemicals across North America and EMEA. We specialize in agile technologies and focused product teams, providing our customers with responsive, personalized service.
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