Description

Fatty Acid,C18-Unsatd,Dimers,Polymers With Ethylenediamine And Soya Fatty Acid CAS NO 68139-79-7 is a high-performance polyamide resin intermediate derived from dimerized and polymerized unsaturated C18 fatty acids, reacted with ethylenediamine and soya fatty acids. This specialized chemical offers excellent adhesion, flexibility, and water resistance, making it a critical component for formulating durable coatings and adhesives. It is primarily sought by manufacturers in the paints & coatings, printing inks, adhesive, and construction chemical industries for producing high-quality, solvent-based products.

Application

• Reactive Modifier for Polyamide Resins: A key building block for synthesizing versatile polyamide resins used in high-performance applications.
• Industrial & Protective Coatings: Imparts excellent adhesion, chemical resistance, and flexibility to coatings for metal, wood, and plastic substrates.
• Solvent-based Inks: Used in the formulation of printing inks, particularly for overprint varnishes and packaging, to enhance gloss and rub resistance.
• Hot-melt and Reactive Adhesives: Serves as a crucial component to improve bond strength, thermal stability, and durability.
• Construction Chemicals: Employed in sealants, caulks, and concrete curing compounds for enhanced waterproofing and durability.
• Corrosion Inhibitive Primers: Contributes to the formulation of primers that provide strong substrate wetting and corrosion protection.

Basic Information

Item	Detail
Product Name	Fatty Acid,C18-Unsatd,Dimers,Polymers With Ethylenediamine And Soya Fatty Acid
CAS No.	68139-79-7
Molecular Formula	Complex Mixture / Polymer
Molecular Weight	Variable (Polymer Distribution)
Synonyms	Polyamide resin intermediate; Dimer acid polyamide; Ethylenediamine-dimer acid polymer; Soya fatty acid-ethylenediamine-dimer acid adduct; Fatty acids, C18-unsaturated, dimers, polymers with ethylenediamine and soya fatty acids; UNII-9F8M7D5Q5F; Dimer acid-ethylenediamine-soya fatty acid condensate; Versamid-type intermediate
EINECS	Contact for details

Quality Control

Our production of this polyamide intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as amine value, acid value, viscosity, and color are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid, amber to brown
Identification (IR)	Conforms to structure
Amine Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	Contact for details
Viscosity (Gardner-Holdt)	Z5 - Z6 (Typical)
Color (Gardner)	≤ 12
Solids Content (%)	Contact for details

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