Description

Fatty Acids, C18-Unsatd., Dimers, Polymers With Dicyclopentadiene And Rosin CAS NO 124945-52-4 is a high-performance, modified resin derived from unsaturated C18 fatty acid dimers and polymers, reacted with dicyclopentadiene and rosin. This specialized chemical is engineered to enhance the tack, adhesion, and thermal stability of formulations, making it a critical component for demanding industrial applications. It is primarily sought by manufacturers in the adhesives, printing inks, coatings, and rubber industries for its ability to improve product performance and durability.

Application

• Hot Melt Adhesives (HMA): Acts as a key tackifier and modifier, improving adhesion to diverse substrates including plastics, metals, and paper.
• Pressure-Sensitive Adhesives (PSA): Enhances peel strength, tack, and shear resistance in tapes, labels, and graphic films.
• Rubber Compounding: Used as a processing aid and tackifier in tire manufacturing and industrial rubber goods.
• Printing Inks: Serves as a resin modifier to improve gloss, rub resistance, and pigment wetting in gravure and flexographic inks.
• Industrial Coatings: Imparts improved adhesion, flexibility, and water resistance to protective and decorative coatings.
• Sealants and Caulks: Provides enhanced cohesion, adhesion, and durability in construction and automotive sealants.

Basic Information

Item	Details
Product Name	Fatty Acids, C18-Unsatd., Dimers, Polymers With Dicyclopentadiene And Rosin
CAS No.	124945-52-4
Molecular Formula	Complex Mixture
Molecular Weight	Variable (Polymeric Mixture)
Synonyms	Dimerized fatty acid-rosin-dicyclopentadiene polymer; Rosin-modified fatty acid dimer; DCPD-rosin adduct with fatty acid dimers; Tackifying resin from C18 unsaturated fatty acids; Polymeric resin of dicyclopentadiene, rosin, and fatty acid dimers; Modified tall oil resin; Adhesive tackifier resin; UNII-8KQ3B53M6T
EINECS	Contact for details

Quality Control

Our production of Fatty Acids, C18-Unsatd., Dimers, Polymers With Dicyclopentadiene And Rosin adheres to stringent quality management protocols. Each batch is tested against key physical and chemical parameters to ensure consistency and performance for your specific application. Certificates of Analysis (COA) documenting acid value, softening point, color, and viscosity are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen blanket) to maintain optimal properties. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Amber to pale yellow solid/paste
Softening Point (Ring & Ball)	80 - 120 °C
Acid Value	5 - 30 mg KOH/g
Color (Gardner)	≤ 12
Viscosity (at 150°C)	Contact for details
Identification (IR)	Conforms to standard

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