Description

Rosin/ Pentaerythritol/ Tripentaerthritol Polymer is a high-performance synthetic resin derived from the esterification of rosin with pentaerythritol and/or tripentaerythritol. This versatile polymer is valued for its excellent tackifying properties, thermal stability, and compatibility with a wide range of polymers and elastomers. It is a critical raw material for formulators in the adhesives, coatings, and ink industries seeking to enhance product performance and durability.

Application

• Hot-Melt Adhesives (HMAs): Acts as a primary tackifier, improving initial adhesion, open time, and bond strength in packaging, woodworking, and non-woven applications.
• Pressure-Sensitive Adhesives (PSAs): Used in tapes, labels, and graphic films to provide aggressive tack and peel adhesion.
• Rubber Compounding: Functions as a processing aid and tackifier in rubber formulations for tires, belts, and seals.
• Industrial and Protective Coatings: Enhances gloss, hardness, and drying speed in solvent-based and alkyd resin coatings.
• Printing Inks: Improves pigment wetting, gloss, and rub resistance in gravure and flexographic inks.
• Sealants and Caulks: Imparts flexibility, adhesion, and durability to construction and automotive sealants.

Basic Information

Product Name	Rosin/ Pentaerythritol/ Tripentaerthritol Polymer
CAS No.	68152-77-2
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Contact for details)
Synonyms	Rosin Pentaerythritol Ester; Pentaerythritol Rosinate; Rosin Ester with Pentaerythritol; Tripentaerythritol Rosin Ester; Ester Gum; Glycerol Ester of Rosin (related); Synthetic Resin; Tackifying Resin; Polyol Ester of Rosin
EINECS	Contact for details

Quality Control

Our Rosin/ Pentaerythritol/ Tripentaerthritol Polymer is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including assessment of acid value, softening point, color, and solubility. A comprehensive Certificate of Analysis (COA) is provided with every shipment to guarantee compliance with your specifications and industry standards.

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). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	85 - 115 °C
Acid Value	< 15 mg KOH/g
Color (Gardner)	< 8
Saponification Value	140 - 170 mg KOH/g
Solubility (in Toluene)	Clear solution

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