L-101 Pure Block Copolymer

• Product Name: L-101 Pure Block Copolymer

• Chemical Name: Polyoxyethylene-Polyoxypropylene Block Copolymer (Poloxamer 331)

• CAS No.: 9003-11-6 (100% Active Ingredient)

Technical Specifications

• Physical Form: Clear to slightly hazy, colorless, solvent-free liquid (100% Active)

• Average Molecular Weight: ~3800

• HLB Value: 1 (Strongly lipophilic, extreme oil solubility)

• Cloud Point (1% Aqueous Solution): Insoluble

• Cloud Point (Solvent Method): ~15°C (Tested via 5g product in 25g of 25% BDG aqueous solution)

Product Description

L-101 is a high-molecular-weight, strongly lipophilic 100% active non-ionic block copolymer engineered specifically for industrial systems requiring extreme oil solubility and thermal shear stability. Characterized by a hydrophobic structure with an HLB value of 1, L-101 is completely insoluble in water but exhibits exceptional solubility and high-affinity blending in mineral oils, synthetic esters, PAOs, and non-polar hydrocarbon bases. It serves as an elite, high-performance base stock component, a powerful non-aqueous defoamer, and a robust dispersing agent for advanced industrial fluid formulations.

Key Applications & Technical Benefits

• Synthetic Lubricants & Base Stock: Functions as a premium synthetic base stock component or performance modifier for heavy-duty gear oils, high-temperature industrial lubricants, and specialized hydraulic fluids. It delivers excellent hydrodynamic film strength and exceptional shear stability under extreme mechanical loads.

• Industrial Anti-Foam & Defoamer: Acts as a highly powerful, long-lasting defoamer in non-aqueous or heavily oil-rich systems (such as oil-based metalworking fluids, fuel processing, and industrial solvent washes) where traditional water-soluble surfactants fail to perform or cause unwanted emulsification.

• Advanced Dispersing Agent: Provides outstanding wetting and steric stabilizing performance for dispersing organic/inorganic pigments, fillers, and extreme-pressure (EP) performance additives within oil-based coatings, inks, and synthetic grease formulations.

• 100% Active Ingredient: Pure, solvent-free, and flash-point safe, offering formulators maximum compounding flexibility and facilitating excellent environmental and chemical regulatory compliance.