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High melt flow index for excellent processability in extrusion and injection molding.
Outstanding abrasion resistance and mechanical toughness across a wide temperature range.
Good hydrolytic stability, enabling reliable performance in humid or wet environments.
Excellent clarity and low haze for transparent or translucent end-use applications.
Compatible with common engineering thermoplastics for alloy development and co-processing.
Thin-walled medical tubing requiring kink resistance and biocompatibility support.
Automotive interior trim components demanding soft-touch feel and scratch resistance.
Consumer electronics protective cases and flexible housings with impact absorption.
Wearable device straps and enclosures requiring skin-friendly flexibility and durability.
Industrial fluid handling hoses where clarity, chemical resistance, and bend fatigue life are critical.
| Chemical Type | Aliphatic polyester-based thermoplastic polyurethane (TPU) |
| Product Form | Pellets |
| Appearance | Translucent, natural-colored pellets |
| Primary Applications | Medical tubing, automotive interiors, consumer electronics, wearables |
| Key Features | High melt flow, abrasion resistance, hydrolytic stability, optical clarity |
| Benefits | Enhanced processing efficiency, long-term mechanical integrity, regulatory compliance readiness |
| Processing Method | Extrusion, injection molding, blow molding |
Q1: What is the primary function of Lubrizol TPU PC-3585A in thermoplastic polyurethane (TPU) formulations?
A: Lubrizol TPU PC-3585A is a high-performance processing aid designed to improve melt flow, reduce extrusion pressure, and enhance surface finish in TPU compounds—particularly during extrusion and injection molding processes.
Q2: Is PC-3585A compatible with all major TPU chemistries (e.g., polyester-, polyether-, and polycaprolactone-based TPUs)?
A: Yes, PC-3585A demonstrates broad compatibility across common TPU base resins. It is especially effective in aromatic polyester-based TPUs but has also been successfully evaluated in polyether and aliphatic systems under standard processing conditions.
Q3: How should PC-3585A be incorporated into TPU formulations?
A: It is typically added directly to the TPU resin via dry blending prior to extrusion or injection molding. Pre-compounding is not required, and it disperses readily under standard melt processing shear conditions.
Q4: Does PC-3585A affect the mechanical or thermal properties of the final TPU part?
A: When used at recommended dosage levels, PC-3585A does not significantly compromise tensile strength, elongation, or heat resistance. Minor reductions in modulus may occur at higher loadings, but these are generally offset by improved processability and surface aesthetics.
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