Description

Rosin, Polymd., Polymer With Maleic Anhydride, Phthalic Anhydride, Tall Oil, Tetrahydroabietyl Alc. And Trimethylolpropane CAS NO 121617-10-5 is a specialized, multi-component synthetic resin derived from modified rosin and polyols. This engineered polymer is valued for its excellent adhesion, film-forming properties, and chemical resistance, making it a critical performance additive. It is primarily used by formulators in the coatings, adhesives, and ink industries seeking to enhance product durability and functionality.

Application

• Industrial Coatings: Used as a resin modifier in alkyd, epoxy, and polyurethane coatings to improve gloss, hardness, and adhesion to metal and plastic substrates.
• Adhesives & Sealants: Serves as a tackifying resin and binder in hot-melt, pressure-sensitive, and structural adhesives, providing strong bonding strength.
• Printing Inks: Acts as a key resin component in gravure and flexographic inks, contributing to pigment wetting, printability, and rub resistance.
• Polymer Modification: Employed as a compatibilizer or processing aid to enhance the properties of other polymers and composites.
• Wood Finishes: Incorporated into varnishes and lacquers to improve drying time, water resistance, and surface protection.

Basic Information

Product Name	Rosin, Polymd., Polymer With Maleic Anhydride, Phthalic Anhydride, Tall Oil, Tetrahydroabietyl Alc. And Trimethylolpropane
CAS No.	121617-10-5
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Contact for details
Synonyms	Modified Rosin Ester; Tall Oil Rosin-Maleic Anhydride-Phthalic Anhydride-Tetrahydroabietyl Alcohol-Trimethylolpropane Polymer; Polymerized Rosin Ester; Rosin-Maleic Anhydride Adduct Ester; Tackifying Resin 121617-10-5; Rosin Modified Alkyd Resin; Synthetic Rosin Ester; Adhesive Resin Base
EINECS	Contact for details

Quality Control

Our production of this modified rosin polymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, softening point, viscosity, and color are rigorously tested. Certificates of Analysis (COA) documenting these specifications 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, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber solid or viscous liquid
Acid Value (mg KOH/g)	5 - 25
Softening Point (Ring & Ball, °C)	80 - 120
Color (Gardner)	≤ 8
Viscosity (at 25°C, mPa·s)	Contact for details
Solubility	Soluble in common organic solvents

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