Description

Phenol,4,4'-(1-Methylethylidene)Bis-,Polymer With(Chloromethyl)Oxirane,Octadecanoate CAS NO 59111-89-6 is a specialized epoxy resin ester, specifically a bisphenol A-based epoxy resin modified with stearic acid. This chemical is engineered to provide enhanced compatibility, flexibility, and hydrophobic properties in polymer matrices. It serves as a crucial reactive modifier, internal lubricant, and flow control agent in advanced coating, adhesive, and composite formulations. Key industries that utilize this product include paints & coatings, electronics encapsulation, and specialty polymer manufacturing.

Application

• Epoxy Resin Modifier: Used to improve flexibility, impact resistance, and processability in epoxy resin systems for coatings and adhesives.
• Internal Lubricant & Release Agent: Acts as a processing aid in thermoset and thermoplastic compounds to reduce viscosity and improve mold release.
• Powder Coating Additive: Enhances flow, leveling, and surface finish in epoxy-based powder coatings.
• Electrical Encapsulant Component: Incorporated into potting compounds and encapsulants for electronic components to provide moisture resistance and stress relief.
• Adhesive Formulation: Used in structural and non-structural adhesives to adjust rheology and enhance adhesion to low-energy surfaces.
• Composite Material: Serves as a matrix modifier in fiber-reinforced composites to optimize mechanical properties and processing characteristics.

Basic Information

Product Name	Phenol,4,4'-(1-Methylethylidene)Bis-,Polymer With(Chloromethyl)Oxirane,Octadecanoate
CAS No.	59111-89-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Epoxy stearate; Bisphenol A epoxy resin stearate; Epoxy resin ester of stearic acid; Oxirane, (chloromethyl)-, polymer with 4,4'-(1-methylethylidene)bis[phenol], octadecanoate; Epoxy modifier ES; Stearic acid-modified epoxy resin; BPA epoxy stearic ester; Reactive epoxy plasticizer
EINECS	Contact for details

Quality Control

Our production of this epoxy resin ester adheres to strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure consistency and performance. Key parameters monitored include epoxy equivalent weight, acid value, viscosity, and appearance. Certificates of Analysis (COA) documenting these specifications are available upon request 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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be kept in original packaging or opaque containers until use.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid or solid
Epoxy Equivalent Weight (EEW)	Contact for details
Acid Value	≤ 5.0 mg KOH/g
Viscosity (at 25°C)	Contact for details
Color (Gardner)	≤ 4
Identification (IR)	Conforms

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