Formula details
Product Details
Overview
Greenlano® Light Stabilizer 944 (Chimassorb 944 Equivalent)
CAS 71878-19-8 | ISO 9001 Certified | High Molecular Weight Polymeric HALS
We manufacture and supply Greenlano® Light Stabilizer 944, a high-performance polymeric hindered amine light stabilizer (HALS) engineered as a direct, drop-in equivalent to Chimassorb 944. Designed for demanding polyolefin and engineering plastic applications, our HALS 944 provides exceptional resistance to UV degradation, minimal volatility, and long-term thermal stability during high-temperature polymer processing.
Key Product Highlights
- Direct Factory Supply: 100% batch quality verification ensuring consistent purity and performance across every shipment.
- Processing Stability: Exceptional low volatility that withstands intense processing temperatures without gas fading or premature decomposition.
- Complete Documentation: Full regulatory and technical support ready for immediate integration, including REACH compliance, COA, MSDS, and TDS.
Procurement & Technical Support
- [Request Wholesale Quote]
- [Claim Free Sample]
- [Download TDS / MSDS Documentation]
Comprehensive UV & Thermal Stabilization for Polymers
We engineered Greenlano® Light Stabilizer 944 as a high-performance polymeric Hindered Amine Light Stabilizer (HALS 944) to deliver long-term protection for polyolefins and engineering plastics. Designed as a direct alternative to Chimassorb 944, our formulation neutralizes free radicals at the molecular level, shielding your resins from premature degradation caused by solar radiation and thermal stress.
Superior UV Stabilization and Tensile Retention
Solar exposure breaks down polymer backbones, causing sudden structural failure. Greenlano® UV Stabilizer 944 operates as a powerful radical trapping agent, constantly intercepting alkyl and peroxy radicals before they degrade the matrix.
- Maintains Mechanical Integrity: Prevents chain scission to preserve tensile strength and impact resistance in molded parts, films, and fibers.
- Continuous Protection Cycle: Regenerates active nitroxyl radicals during UV exposure to extend product lifespan under heavy sunlight.
High Extraction Resistance and Thermal Stability
Standard low molecular weight stabilizers easily migrate, wash out, or volatilize during production. We formulated this high molecular weight polymeric HALS to withstand harsh processing conditions and harsh outdoor environments.
- Extraction Resistant UV Additive: Resists leaching when exposed to water, aqueous chemicals, agricultural sprays, or organic solvents.
- Low Volatility HALS (Up to 300°C): Withstands extreme extrusion and injection molding temperatures without gas generation, additive loss, or equipment fouling.
Color Retention and Surface Defect Control
Weathering often destroys surface appearance long before mechanical integrity fails. As a primary plastic UV degradation inhibitor, Greenlano® 944 preserves aesthetics across demanding outdoor applications:
- Stops Surface Chalking: Prevents white residue buildup caused by polymer oxidation.
- Prevents Surface Cracking: Eliminates micro-fissures in rigid components and thin agricultural films.
- Inhibits Yellowing: Retains original color, transparency, and high surface gloss over years of field exposure.
Chemical Identification & Technical Datasheet
Chemical Name and Structure of Polymeric HALS 944
We produce Greenlano® Light Stabilizer 944 as a direct, high-performance equivalent to Chimassorb 944. As a high molecular weight Polymeric Hindered Amine Light Stabilizer (HALS 944), its triazine-based oligomeric structure gives it low volatility and high extraction resistance during high-temperature polymer processing.
- Chemical Name: Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]])
- CAS Number: 71878-19-8 (also identified under CAS 70624-18-9)
- Chemical Family: High Molecular Weight Polymeric HALS
Physical Property Matrix
We verify every production batch to guarantee strict adherence to technical specifications before shipment:
| Technical Property | Specification |
|---|---|
| CAS Number | 71878-19-8 / 70624-18-9 |
| Appearance | White to off-white powder or granules |
| Purity (HPLC) | ≥ 99.0% |
| Molecular Weight (Mn) | 2000 – 3300 g/mol |
| Melting Range | 100°C – 130°C |
| Volatiles | ≤ 0.5% max |
| Ash Content | ≤ 0.1% max |
| Light Transmittance | 425 nm ≥ 93.0% | 450 nm ≥ 95.0% |
Product Form Variants: Greenlano® 944 FDL & LD
To fit your compounding equipment and workplace safety requirements, we supply our Polyolefin Light Stabilizer in two physical forms:
- Greenlano® 944 FDL (Granules): Free-flowing granular form designed for automated loss-in-weight feeders and continuous extrusion lines. It eliminates hopper bridging and reduces airborne dust in the processing environment.
- Greenlano® 944 LD (Low-dust Powder): High-dispersion powder tailored for masterbatch production, dry blends, and high-speed mixer formulations where rapid distribution across polymer resins is required.
Target Polymer Systems & Industrial Applications
We supply Greenlano® Light Stabilizer 944—our high-performance Chimassorb 944 equivalent—to protect polymer matrices against severe weather, UV radiation, and thermal degradation. Due to its high molecular weight and low volatility, this polymeric Hindered Amine Light Stabilizer (HALS 944) excels in products with high surface-area-to-volume ratios and long-term outdoor exposure.
Polyolefin Light Stabilizer for PP & PE Resins
Polyolefins degrade quickly without proper photo-oxidation protection. Our UV Stabilizer 944 resists extraction and migration, making it the industry standard for tough polyolefin applications:
- Agricultural Films & Geomembranes: Acts as a proven agricultural film UV additive, preventing embrittlement, yellowing, and surface cracking under intense sunlight and pesticide contact.
- Water Pipes & Fittings: Provides long-term extraction resistance against continuous water contact in polyolefin pipe systems.
- Ropes, Woven Bags & Tapes: Retains tensile strength and elongation in stretched PP tapes, raffia, and industrial carpet backing.
Engineering Plastics & Elastomers
Beyond standard polyolefins, our Chimassorb 944 equivalent provides exceptional stabilization across diverse resin systems:
- Thermoplastic Olefins (TPO) & EVA: Preserves flexibility, color retention, and impact resistance in automotive exterior components and industrial sheets.
- Polyurethanes (PU) & PVC Formulations: Inhibits yellowing, surface chalking, and chain scission in exterior coatings and structural profiles.
PP Fiber UV Protection & Textiles
Thin fiber formulations require high molecular weight additives that will not volatilize during high-temperature extrusion or clog fine spinnerets:
- Multifilament PP Yarns: Delivers uniform radical trapping to safeguard fine yarns against severe outdoor UV degradation.
- Non-Woven Fabrics: Extends the service life of geotextiles, shade nets, and outdoor upholstery fabrics with zero surface migration.
Recommended Addition Rates & Synergistic Blends
Getting the exact dosage of Light Stabilizer 944 right is critical to optimizing outdoor durability while keeping raw material costs under control. Polymer thickness, pigementation, filler content, and expected exposure climate dictate your exact formulation needs.
Application-Specific Dosage Rates
We supply Greenlano® Light Stabilizer 944 (Chimassorb 944 equivalent) for seamless integration into high-demand polyolefin processing lines.
| Polymer Application | Target Products | Recommended Dosage (w/w %) | Key Performance Benefit |
|---|---|---|---|
| Thick Sections | Injection-molded parts, geomembranes, water pipes, TPO | 0.15% – 0.50% | Preserves structural tensile strength and surface finish |
| Agricultural Films | Greenhouse covers, mulch films, silobags | 0.20% – 0.80% | Outstanding agricultural film UV additive with agrochemical resistance |
| PP Fibers & Textiles | Multifilament yarns, non-woven fabrics, artificial turf | 0.15% – 0.60% | High-efficiency PP fiber UV protection without spinneret die buildup |
| Tapes & Raffia | Woven bags, FIBC bulk containers, carpet backing | 0.10% – 0.40% | Retains tenacity and prevents surface cracking/fibrillation |
Formulation Synergy with Antioxidants and UV Absorbers
Single-additive stabilization rarely meets aggressive outdoor weatherability targets. We recommend combining our high molecular weight polymeric hindered amine light stabilizer (HALS 944) with complementary processing and light stabilization additives:
- Primary & Secondary Antioxidants (Antioxidant 1010 / 168): Blending HALS 944 with Antioxidant 1010 (hindered phenol) and Antioxidant 168 (phosphite) protects your polymer resin from thermal degradation and discoloration during high-temperature extrusion, maintaining the polymer backbone before outdoor weathering starts.
- UV Absorbers (UV 326 / UV 531): While HALS 944 functions as a high-efficiency radical trapping agent, pairing it with UV absorbers like UV 326 (benzotriazole) or UV 531 (benzophenone) provides dual-action protection. The UV absorber filters incoming solar radiation, while Chimassorb 944 neutralizes photo-oxidation free radicals, significantly boosting long-term weatherability in thick sections and outdoor films.
Quality Control Standards & Global Compliance
We maintain strict batch-to-batch quality controls and comprehensive global regulatory compliance for our Greenlano® Light Stabilizer 944 (Chimassorb 944 equivalent). We ensure every shipment meets exact technical specifications before leaving our facility.
Analytical Batch Testing & COA Verification
We verify every production lot of this High Molecular Weight Light Stabilizer (CAS 71878-19-8 / CAS 70624-18-9) through rigorous laboratory testing:
- HPLC Analysis: Confirms high chemical purity (>99%) and minimal synthesis impurities.
- GPC Testing: Verifies exact molecular weight distribution to ensure consistent polymeric performance and extraction resistance.
- Batch COA Verification: Every delivery includes a factory Certificate of Analysis verifying melting range, volatiles, ash content, and solution transmittance.
Global Regulatory Compliance
Our Polymeric Hindered Amine Light Stabilizer aligns with international safety and market entry standards, easing formulation approval processes:
- EU REACH Registration: Fully registered for seamless import, distribution, and processing within European markets.
- FDA Compliance: Suitable for indirect food contact applications in qualifying polyolefin packaging and containers.
- Environmental Safety: Fully compliant with global regulations regarding heavy metals and restricted industrial chemicals.
Storage & Handling Safety
HALS 944 is non-hazardous for road, sea, and air freight, simplifying global logistics and warehouse handling.
- Transport Classification: Rated as non-dangerous goods for international shipping.
- Warehouse Storage: Keep sealed containers in cool, dry, and well-ventilated areas away from direct heat and sunlight.
- Shelf Life: Retains full operational stability for up to 24 months when stored unopened in original packaging.
Commercial Packaging & Global Delivery Capabilities
We ship our Greenlano® Light Stabilizer 944 (Chimassorb 944 equivalent) worldwide with robust, moisture-proof packaging and optimized logistics engineered for industrial supply chains.
Standard Packaging Specifications
To preserve product purity and prevent moisture absorption during transit, we package our HALS 944 in heavy-duty, export-grade containers:
- 25 kg Fiber Drums & Cartons: Sealed with heavy-duty polyethylene (PE) inner liners.
- Bulk Palletization: Standard 500 kg or 1,000 kg stretch-wrapped pallets with corner protection for safe stacking.
- Custom Packaging: Tailored labeling and bulk bag configurations available upon request.
| Packaging Type | Net Weight | Inner Protection | Standard Pallet Load |
|---|---|---|---|
| Fiber Drum | 25 kg | Double PE Liner | 500 kg / Pallet |
| Heavy Carton | 25 kg | Sealed PE Liner | 500 kg / Pallet |
Global Logistics & Direct Factory Supply
As a direct Greenlano polymer additives supplier, we streamline global shipping to match your inventory schedules:
- Factory-Direct Pricing: Cutting out middleman margins to maximize your procurement budget.
- Flexible MOQ: Accommodating trial batches and full container load (FCL) orders.
- Full Export Compliance: Seamless global customs clearance with COA, MSDS, TDS, and REACH documentation included with every batch.
- Fast Delivery: Stocked factory inventory ready for immediate international dispatch.
Frequently Asked Questions About Chimassorb 944
We regularly consult with formulation engineers and procurement specialists regarding our Greenlano® Light Stabilizer 944 (equivalent to Chimassorb 944, CAS 71878-19-8). Here are direct answers to the most common technical and regulatory questions we receive.
What is the primary function of Chimassorb 944 in polymer stabilization?
Chimassorb 944 operates as a high molecular weight polymeric hindered amine light stabilizer (HALS). Rather than absorbing light energy, it acts as an active radical trapping agent to neutralize free radicals generated by photo-oxidation.
- Main Role: Inhibits polymer chain scission, chalking, and loss of tensile strength under intense sunlight.
- Core Advantage: High extraction resistance, low volatility, and minimal migration in demanding environmental conditions.
- Key Applications: Essential for polyolefin films, PP fibers, tapes, and outdoor engineering components.
What is the difference between low-dust powder and granule forms of Light Stabilizer 944?
We offer two physical product forms of HALS 944 to suit your manufacturing environment and dosing setup:
| Form Variant | Physical Appearance | Key Operational Benefits |
|---|---|---|
| Greenlano® 944 LD | Low-Dust Powder | Excellent dispersion in high-shear compounding and masterbatch production. |
| Greenlano® 944 FDL | Free-Flowing Granules | Minimizes workplace dust hazards, improves safety, and ensures accurate volumetric feeding in direct extrusion lines. |
Both forms deliver identical chemical purity, thermal stability up to 300°C, and long-term performance.
Is HALS 944 compliant with FDA indirect food contact regulations?
Yes. Our Polymeric Light Stabilizer 944 complies with FDA indirect food contact regulations under 21 CFR 178.2010 for approved polyolefin applications, subject to specific concentration limits and food type conditions. We maintain full REACH compliance for European distribution and supply standard regulatory documentation—including TDS, MSDS, and batch COAs—with every order.
How does Chimassorb 944 perform when combined with UV absorbers and primary antioxidants?
Blending Chimassorb 944 with primary antioxidants and benzotriazole/benzophenone UV absorbers creates a synergistic stabilization package that protects polymers across all life cycle stages:
- Processing Thermal Protection: Primary antioxidants (such as Antioxidant 1010 and 168) protect the resin from heat degradation during extrusion.
- Surface UV Absorption: UV absorbers (such as UV 326 or UV 531) filter harmful ultraviolet wavelengths before they penetrate the substrate.
- Continuous Radical Scavenging: UV Stabilizer 944 continuously traps free radicals formed over long-term outdoor exposure.
This combined system significantly delays surface cracking, color change, and physical degradation compared to single-additive stabilization.