Description

Poly[Oxy(Methyl-1,2-Ethanediyl)], .Alpha.-Hydro-.Omega.-Hydroxy-, Esters With Succinic Anhydride Polyisobutenyl Derivs is a high-performance polymeric dispersant and viscosity modifier derived from polyisobutylene succinic anhydride (PIBSA) chemistry. This compound is engineered to provide exceptional stabilization and flow control in complex formulations, particularly in lubricant and fuel additive packages. It is a critical component for formulators in the automotive, industrial lubricant, and specialty chemical industries seeking to enhance product performance and longevity.

Application

• Lubricant Additives: Primary application as a highly effective dispersant and viscosity index improver in engine oils, gear oils, and hydraulic fluids to prevent sludge formation and maintain viscosity under shear.
• Fuel Additives: Used in gasoline and diesel fuel additive packages to keep injectors and intake systems clean by dispersing deposits and controlling combustion chamber fouling.
• Industrial Additives: Functions as a stabilizer and dispersant in greases, metalworking fluids, and other industrial lubricants to improve thermal stability and performance under extreme pressure.
• Ashless Dispersant: Provides critical detergency and soot-handling capabilities in modern low-SAPS (Sulfated Ash, Phosphorus, Sulfur) lubricant formulations required for advanced emission control systems.
• Polymer Modification: Acts as a compatibilizer and processing aid in polymer blends and composites, improving material properties and manufacturing efficiency.

Basic Information

Product Name	Poly[Oxy(Methyl-1,2-Ethanediyl)], .Alpha.-Hydro-.Omega.-Hydroxy-, Esters With Succinic Anhydride Polyisobutenyl Derivs
CAS No.	71820-32-1
Molecular Formula	Typically complex polymeric mixture; Contact for details
Molecular Weight	Varies by grade (typically 800-2500 g/mol); Contact for details
Synonyms	PIBSA-Polyether Ester; Polyisobutylene Succinic Anhydride Polyol Ester; Polyisobutenyl Succinic Anhydride Polyoxyalkylene Ester; Polyether Ester of PIBSA; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, ester with polyisobutenylsuccinic anhydride; Lubricant Dispersant 71820-32-1; Ashless Dispersant Polymer
EINECS	Contact for details

Quality Control

Our production of Poly[Oxy(Methyl-1,2-Ethanediyl)], .Alpha.-Hydro-.Omega.-Hydroxy-, Esters With Succinic Anhydride Polyisobutenyl Derivs adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Key parameters such as saponification number, hydroxyl value, viscosity, and nitrogen content are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). This material is easily oxidized; for long-term storage or after opening, consider storing under an inert atmosphere (e.g., nitrogen blanket) to preserve product integrity. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Clear, viscous amber to brown liquid
Identification (IR)	Conforms to structure
Viscosity @ 100°C, cSt	150 - 450 (Grade Dependent)
Saponification Number, mg KOH/g	30 - 80
Hydroxyl Value, mg KOH/g	15 - 50
Nitrogen Content, % wt	0.5 - 2.0
Water Content, % max	0.5
Flash Point, °C, min	180

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