Description

Phenol, 4,4'-(1-Methylethylidene)Bis[2,6-Dibromo-, Polymer With 1,2-Dibromoethane CAS NO 51706-15-1 is a high-performance brominated polymeric flame retardant, specifically engineered to provide superior fire resistance in demanding polymer applications. This compound is critical for manufacturers requiring enhanced safety and compliance with stringent international fire safety regulations without compromising the physical properties of the base material. It is primarily utilized by the plastics, electronics, and construction industries to impart flame retardancy to engineering thermoplastics, epoxy resins, and synthetic rubbers.

Application

• Flame Retardant for Engineering Thermoplastics: Key additive in polycarbonate (PC), acrylonitrile butadiene styrene (ABS), PC/ABS blends, and polyamides (nylon) for electronic housings, connectors, and automotive components.
• Epoxy Resin Systems: Used in printed circuit boards (PCBs), semiconductor encapsulation materials, and electrical laminates to achieve high comparative tracking index (CTI) and UL94 V-0 ratings.
• Wire and Cable Insulation: Imparts flame retardancy to polyethylene (PE), cross-linked polyethylene (XLPE), and ethylene-vinyl acetate (EVA) compounds used in building wires, communication cables, and power cables.
• Synthetic Rubbers and Elastomers: Enhances fire safety in products like conveyor belts, seals, gaskets, and industrial hoses.
• Construction Materials: Incorporated into polymer-based insulation foams, panels, and coatings to meet building code fire standards.
• Transportation Interiors: Used in composites and polymers for aircraft, train, and automotive interiors to reduce flammability and smoke generation.

Basic Information

Product Name	Phenol, 4,4'-(1-Methylethylidene)Bis[2,6-Dibromo-, Polymer With 1,2-Dibromoethane
CAS No.	51706-15-1
Molecular Formula	(C15H12Br4O2 • C2H4Br2)n
Molecular Weight	Polymeric substance (Contact for details)
Synonyms	Brominated Bisphenol A Polymeric Flame Retardant; Tetrabromobisphenol A-Bis(2,3-dibromopropyl ether) Polymer; FR-720; BDDP; 2,2-Bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]propane polymer; Brominated epoxy polymer (oligomer type); Tetrabromobisphenol A bis(2,3-dibromopropyl ether); TBBA-DBPE Polymer
EINECS	Contact for details

Quality Control

Our production of this brominated flame retardant adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Key parameters such as bromine content, thermal stability (TGA), melting range, and impurity levels are rigorously tested. Certificates of Analysis (COA) detailing purity, physical properties, and heavy metal content are provided with every shipment. Our quality processes support compliance with global standards including REACH, RoHS, and UL certification requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the original container tightly sealed to minimize exposure to atmospheric humidity. Store away from strong oxidizers and heat sources.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Bromine Content	≥ 66.0 %
Melting Range	105 - 115 °C
Volatile Matter	≤ 0.3 %
Acidity (as HBr)	≤ 0.1 %
Particle Size (Typical, 100 mesh)	≥ 98 % pass
Thermal Stability (TGA, 5% weight loss)	> 300 °C
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.