Excellent optical clarity and high-gloss surface finish for premium aesthetic applications.
Good dimensional stability with low moisture absorption compared to other cellulose esters.
Easy to process via injection molding, extrusion, and thermoforming without requiring drying beyond standard handling.
Good resistance to aliphatic hydrocarbons, mineral oils, and weak acids.
Non-toxic formulation compliant with FDA 21 CFR §177.2440 for indirect food contact applications.
Transparent eyewear frames and temple tips requiring impact resistance and skin compatibility.
Consumer electronics housings and decorative trim where clarity and gloss retention are critical.
Medical device components such as diagnostic instrument casings and non-sterile handheld enclosures.
High-end writing instruments including transparent barrel bodies and clip assemblies.
Point-of-purchase displays and retail signage requiring optical quality and thermoformability.
| Chemical Type | Cellulose propionate |
| Product Form | Pellets |
| Appearance | Clear, translucent, colorless |
| Primary Applications | Optical components, consumer goods, medical devices, eyewear |
| Key Features | Clarity, gloss, moldability, low moisture sensitivity |
| Benefits | Reduced post-molding stress whitening, excellent surface aesthetics, regulatory compliance |
| Processing Method | Injection molding, extrusion, thermoforming |
| Regulatory Status | FDA 21 CFR §177.2440 (indirect food contact), RoHS compliant |
Q1: What are the key processing advantages of Eastman Tenite Propionate 360E4861316 compared to other cellulose esters?
A: This grade offers excellent melt flow and low-temperature thermoformability, enabling efficient extrusion, injection molding, and vacuum forming without excessive thermal degradation. Its balanced molecular weight distribution supports consistent part replication and surface clarity in transparent applications.
Q2: Is this material suitable for food-contact applications?
A: Eastman Tenite Propionate 360E4861316 is manufactured to meet applicable FDA requirements for indirect food contact when used in accordance with 21 CFR §177.1010, and it complies with relevant EU framework regulations for plastic materials intended to come into contact with food. Final compliance depends on full formulation, processing conditions, and end-use configuration.
Q3: How does humidity affect drying and processing of this resin?
A: As a hygroscopic cellulose ester, Eastman Tenite Propionate 360E4861316 requires thorough pre-drying prior to processing—typically at 60–70 °C under dehumidified air for 3–4 hours—to minimize moisture-related defects such as splay, haze, or reduced mechanical integrity in finished parts.
Q4: Can this grade be blended or co-processed with other thermoplastics?
A: It exhibits limited compatibility with most common engineering thermoplastics due to polarity differences; however, it can be successfully compounded with compatible plasticizers, UV stabilizers, and certain acrylic modifiers to enhance flexibility or weatherability. Blending with non-polar resins like polyolefins generally requires compatibilization.
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