Description

Hydrogenated44Isopropylidenediphenolphosphiteesterresins CAS NO 27014-73-9 is a specialized, hydrogenated phosphite ester resin, functioning as a high-performance secondary antioxidant and processing stabilizer. Its primary value lies in its ability to prevent polymer degradation during high-temperature processing and to provide long-term color and property retention in finished products. This compound is essential for manufacturers in the plastics, rubber, and synthetic fiber industries who require superior thermal stability and minimal discoloration in their formulations.

Application

• As a secondary antioxidant and processing stabilizer in polyolefins (PP, PE) to prevent thermal degradation during extrusion and molding.
• To enhance color stability and prevent yellowing in engineering plastics such as polycarbonate (PC), ABS, and nylon.
• Used in synthetic rubber compounds to improve resistance to heat aging and maintain elasticity.
• As a stabilizer component in hot-melt adhesives and polymer masterbatches to ensure consistent performance.
• In fiber-grade polymers to protect against molecular weight breakdown during high-speed spinning processes.
• For the stabilization of lubricants and synthetic oils against oxidative breakdown at elevated temperatures.

Basic Information

Product Name	Hydrogenated44Isopropylidenediphenolphosphiteesterresins
CAS No.	27014-73-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Hydrogenated Bisphenol A Phosphite; Hydrogenated Bisphenol A Diphosphite; Tris(2,4-di-tert-butylphenyl) phosphite (hydrogenated derivative); Antioxidant 168 (hydrogenated); Phosphite stabilizer HP-10; Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (hydrogenated); Irgafos 168 (hydrogenated grade); Doverphos S-9228 (hydrogenated type)
EINECS	Contact for details

Quality Control

Our production of Hydrogenated44Isopropylidenediphenolphosphiteesterresins adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and phosphite content. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms
Assay (Phosphite Content)	≥ 98.0 %
Color (Pt-Co)	≤ 50
Melting Point	Contact for details
Volatile Matter	≤ 0.5 %
Acidity (as H3PO4)	≤ 0.05 %

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