Description

Fatty Acids, C18-Unsatd., Dimers, Polymers With Acetic Acid, Ethylenediamine, 2-Methyl-1,5-Pentanediamine And Propylenediamine CAS NO 128734-34-9 is a complex, high-performance polyamide resin derived from dimerized unsaturated C18 fatty acids and a blend of polyamines. This specialized chemical is engineered to deliver exceptional adhesion, flexibility, and chemical resistance in demanding formulations. It is a critical raw material for manufacturers in the coatings, adhesives, and ink industries seeking to enhance the durability and performance of their products.

Application

• High-Performance Industrial Coatings: Used as a curing agent and flexibilizer in epoxy systems for marine, protective, and automotive coatings.
• Reactive Hot-Melt Adhesives (HMA): Serves as a key polyamide resin providing strong substrate adhesion and excellent heat resistance.
• Printing Inks: Imparts gloss, rub resistance, and adhesion to substrates in flexographic and gravure inks.
• Construction Chemicals: Acts as a modifier in two-component epoxy flooring and grouting compounds for improved toughness.
• Can and Coil Coatings: Enhances formability and corrosion resistance in coatings for metal packaging and building materials.
• Functional Additives: Utilized as a rheology modifier or dispersing agent in various polymer composites.

Basic Information

Product Name	Fatty Acids, C18-Unsatd., Dimers, Polymers With Acetic Acid, Ethylenediamine, 2-Methyl-1,5-Pentanediamine And Propylenediamine
CAS No.	128734-34-9
Molecular Formula	Complex mixture; typically represented as (C36H68O4•C2H8N2•C6H16N2•C3H10N2)x
Molecular Weight	Varies (Polymer)
Synonyms	Polyamide resin from dimer acid and mixed amines; Dimer acid polyamide; Versamid-type polyamide; C36 Dimer acid polyamide resin; Polyamide curing agent; UNII-9FZ9895W5U; Adhesive polyamide resin; Thermoplastic polyamide resin
EINECS	Contact for details

Quality Control

Our production of this polyamide resin adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as amine value, viscosity, and softening point are rigorously tested. Certificates of Analysis (COA) documenting full specifications are available for every shipment upon request.

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 strong bases and organic solvents. The product has a typical shelf life of 24 months from the date of manufacture when stored under these conditions.

Specification

Item	Specification
Appearance	Yellowish to amber solid/pellets
Softening Point (Ring & Ball)	105 - 120 °C
Amine Value	200 - 250 mg KOH/g
Viscosity (at 150°C)	500 - 2000 mPa·s
Color (Gardner)	≤ 12
Identification (IR)	Conforms to standard

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