Description

Rosin, Polymer With Isophthalic Acid And Pentaerythritol CAS NO 68515-02-6 is a high-performance, modified rosin ester resin synthesized from rosin, isophthalic acid, and pentaerythritol. This polymer is engineered to deliver superior thermal stability, excellent adhesion, and enhanced compatibility with a wide range of polymers and solvents, making it a critical component in high-quality industrial formulations. It is primarily sought after by manufacturers in the adhesives, coatings, inks, and polymer modification industries seeking to improve product performance and durability.

Application

• Hot-Melt Adhesives (HMA): Acts as a key tackifier, providing excellent initial and long-term adhesion to various substrates including paper, wood, and plastics.
• Pressure-Sensitive Adhesives (PSA): Used in tapes and labels to enhance peel strength, tack, and cohesive balance.
• Industrial and Protective Coatings: Imparts improved gloss, hardness, and water resistance in solvent-based and powder coating formulations.
• Printing Inks: Serves as a resinous vehicle to improve pigment wetting, print gloss, and rub resistance in gravure and flexographic inks.
• Polymer Modification: Functions as a compatibilizer and processing aid in rubber and plastic compounds to enhance flow and mechanical properties.
• Sealants and Caulks: Contributes to elasticity, adhesion, and durability in construction and automotive sealant applications.

Basic Information

Item	Detail
Product Name	Rosin, Polymer With Isophthalic Acid And Pentaerythritol
CAS No.	68515-02-6
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Contact for details)
Synonyms	Pentaerythritol Rosin Ester; Pentaerythritol Ester of Rosin, Modified with Isophthalic Acid; Rosin-Modified Pentaerythritol Ester; Isophthalic Acid-Modified Rosin Ester; Tackifier Resin; Ester Gum 8D; Polymerized Rosin Ester; Modified Rosin Ester Resin
EINECS	Contact for details

Quality Control

Our Rosin, Polymer With Isophthalic Acid And Pentaerythritol is manufactured under a stringent quality management system. Each batch undergoes rigorous testing for key parameters including acid value, softening point, color, and viscosity to ensure consistent performance and compliance with industry specifications. Certificates of Analysis (COA) documenting these results are available upon request.

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/59-77°F). Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	90 - 120 °C
Acid Value	5 - 20 mg KOH/g
Color (Gardner)	≤ 8
Viscosity (25°C, 70% in Toluene)	Contact for details
Identification (IR)	Conforms

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