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Tospearl™ 145FL
Tospearl™ 145FL is a 4.5-micron silicone resin for use as an anti-blocking agent in plastic films.
Momentive Tospearl™ 145FL is a 4.5-micron size, spherical, micro-fine silicone resin used as an additive in biaxially oriented polypropylene (BOPP) film materials as a slip and anti-blocking agent. As a slip agent, it improves the Coefficient of Friction (COF) to facilitate easier processing and faster line speeds and prevents the polymer film from tearing.
Momentive Tospearl™ 145FL, when used as an anti-blocking agent, prevents adhesion by creating lubricity during film production both on a finished roll and on the inside of the bubble. Additionally, Tospearl™ 145FL silicone resin materials offer low surface energy, creating a faster and more seamless film-extrusion process. Furthermore, the small differences between the refractive indices of Tospearl™ 145FL silicone bead additives and the polyolefin resin can help yield higher transparency and clarity with high gloss.
Specifications
Color: White Form: Microfine spherical beads Average particle size: 4.5 Mean particle diameter (µm): 4.0-5.0 Weight loss @ 250°C and 0.5 hours, %: <1.0 pH²: 6.0-8.0 Bulk density: 0.43 Particle specific gravity: 1.32 Refractive index: 1.42
Primary Chemistry: Methyl Silsesquioxane beads
Features & Benefits
Uniform, spherical, and microfine particle size High heat resistance Low surface energy Low refractive index Non-migratory Compounding capabilities Lubricating properties for efficient film extrusion
Problems Solved
High surface energy and refractive index of silicone resin additives Uneven distribution due to particle size Performance issues of slip and anti-block additives in the manufacturing of plastic and BOPP films
Applications
Anti-block masterbatch Food packaging Industrial clear films BOPP Films PET Films
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.
Momentive Tospearl™ is a uniform spherical silicone resin that provides antiblock and slip performance capabilities for various plastic film applications.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
Thank you
Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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